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1	Aquatic Biodiversity	ABS-16
Analisis hubungan panjang bobot ikan baronang angin Siganus javus Linnaeus, 1766 yang ditemukan di Tempat Pendaratan Ikan Paotere Kota Makassar, Sulawesi Selatan Basse Siang Parawansa *, Muhammad Ryas Rasyid, Suwarni*, Sharifuddin Bin Andy Omar *, Joeharnani Tresnati* *Departemen Perikanan Fakultas Ilmu Kelautan dan Perikanan Universitas Hasanuddin Contact Person kukojsr65@gmail.com ABSTRAK Penelitian ini bertujuan untuk mengkaji hubungan panjang bobot dan faktor kondisi dari ikan baronang angin, Siganus javus (Linnaeus, 1766) yang didaratkan di Tempat Pendaratan Ikan Paotere, Kota Makassar, Sulawesi Selatan. Penelitian ini dilaksanakan satu kali setiap bulan selama tiga bulan yaitu bulan Agustus - Oktober 2022 dengan lokasi pengambilan sampel di Tempat Pendaratan Ikan Paotere, Kota Makassar, Sulawesi Selatan. Jumlah ikan yang tertangkap selama penelitian yaitu 289 ekor yang terdiri dari 165 ekor ikan jantan dan 124 ekor ikan betina. Jumlah ikan yang diperoleh pada bulan Agustus yaitu 126 ekor, pada bulan September yaitu 92 ekor, dan pada bulan Oktober yaitu 71 ekor. Hasil penelitian berdasarkan waktu pengambilan sampel selama tiga bulan menunjukkan pola pertumbuhan dengan persamaan pada bulan Agustus W = 0,00002L2,9482, bulan September W = 0,00004L2,8124, dan bulan Oktober W = 0,00004L2,8119, dan berdasarkan jenis kelamin menunjukkan pola pertumbuhan dengan persamaan pada ikan jantan W = 0,00003L2,8926 dan ikan betina W = 0,00005L2,77 , yang menunjukkan pola pertumbuhan bersifat isometrik pada bulan Agustus dan Oktober serta pada ikan baronang jantan yaitu pola pertumbuhan Panjang sebanding dengan pertambahan bobotnya dan bersifat alometrik negatif pada bulan September dan pada ikan baronang betina yaitu pertumbuhan panjang lebih cepat dari pertumbuhan bobot. Nilai faktor kondisi ikan baronang angin mencapai angka 1 mengindikasikan ikan tersebut memiliki kondisi fisik yang baik untuk bertahan hidup dan bereproduksi. Kata kunci : Siganus javus, ikan baronang angin, hubungan panjang bobot, faktor kondisi, Paotere ABSTRACT This study aims to examine the relationship between length and weight and condition factors of the wind baronang fish, Siganus javus (Linnaeus, 1766) which was landed at the Paotere Fish Landing Place, Makassar City, South Sulawesi. This research was conducted once per month for three months, namely August - October 2022 with the sampling location at the Paotere Fish Landing Place, Makassar City, South Sulawesi. The number of fish caught during the study was 289 consisting of 165 male fish and 124 female fish. The number of fish obtained in August was 126 fish, in September 92 fish, and in October 71 fish. The results of the study based on the time of sampling for three months showed a growth pattern with the equation in August W = 0.000002L2.9482, September W = 0.000004L2.8124, and October W = 0.000004L2.8119, and by gender showed a growth pattern with the equation in male fish W = 0.000003L2.8926 and female fish W = 0.000005L2.77, which showed an isometric growth pattern in August and October and in male baronang fish, the growth pattern of length was proportional to weight gain. and negative allometric in September and in female baronang fish, length growth was faster than weight growth. The condition factor value of the wind baronang fish reaches 1 indicating that the fish has good physical conditions for survival and reproduction. Keywords: Siganus javus, baronang wind fish, relationship between length and weight, condition factor, Paotere Basse Siang Parawansa, Suwarni, Sharifuddin Bin Andy Omar, Joeharnani Tresnati FIKP Universitas Hasanuddin Abstract Penelitian ini bertujuan untuk mengkaji hubungan panjang bobot dan faktor kondisi dari ikan baronang angin, Siganus javus (Linnaeus, 1766) yang didaratkan di Tempat Pendaratan Ikan Paotere, Kota Makassar, Sulawesi Selatan. Penelitian ini dilaksanakan satu kali setiap bulan selama tiga bulan yaitu bulan Agustus - Oktober 2022 dengan lokasi pengambilan sampel di Tempat Pendaratan Ikan Paotere, Kota Makassar, Sulawesi Selatan. Jumlah ikan yang tertangkap selama penelitian yaitu 289 ekor yang terdiri dari 165 ekor ikan jantan dan 124 ekor ikan betina. Jumlah ikan yang diperoleh pada bulan Agustus yaitu 126 ekor, pada bulan September yaitu 92 ekor, dan pada bulan Oktober yaitu 71 ekor. Hasil penelitian berdasarkan waktu pengambilan sampel selama tiga bulan menunjukkan pola pertumbuhan dengan persamaan pada bulan Agustus W = 0,00002L2,9482, bulan September W = 0,00004L2,8124, dan bulan Oktober W = 0,00004L2,8119, dan berdasarkan jenis kelamin menunjukkan pola pertumbuhan dengan persamaan pada ikan jantan W = 0,00003L2,8926 dan ikan betina W = 0,00005L2,77 , yang menunjukkan pola pertumbuhan bersifat isometrik pada bulan Agustus dan Oktober serta pada ikan baronang jantan yaitu pola pertumbuhan Panjang sebanding dengan pertambahan bobotnya dan bersifat alometrik negatif pada bulan September dan pada ikan baronang betina yaitu pertumbuhan panjang lebih cepat dari pertumbuhan bobot. Nilai faktor kondisi ikan baronang angin mencapai angka 1 mengindikasikan ikan tersebut memiliki kondisi fisik yang baik untuk bertahan hidup dan bereproduksi. Keywords: Siganus javus, ikan baronang angin, hubungan panjang bobot, faktor kondisi, Paotere Share Link | Plain Format | Corresponding Author (Besse Siang Parawansa)

2	Aquatic Biodiversity	ABS-39
Exploring the potential of sponge Callyspongia pseudoreticulata as antibiofouling against Balamis amphitrite and its phytochemical identification Rosmiati Rosmiati (a), Harlina Harlina (b), A Parenrengi (a), Emma Suryati (a), Irmawati Irmawati (c), Herlinah Herlinah (a), Sulaeman Sulaeman (a), Samuel Lante (a), Gunarto Gunarto (a), Andi Tenriulo (a) a Research Center for Fishery, National Research and Innovation Agency Jalan Raya Bogor KM. 46 Cibinong, Nanggewer Mekar, Indonesia emirosmiati[at]yahoo.com b Faculty of Marine Science and Fisheries, Universitas Muslim Indonesia Jl. Urip Sumoharjo km.5, Panaikang, Makassar, Indonesia c Faculty of Marine Science and Fisheries, Universitas Hasanuddin Jl. Perintis Kemerdekaan KM.10, Tamalanrea Makassar, Indonesia Abstract Marine fouling organisms cause severe problems in fishing nets, hulls, and power plant cooling systems. This study explores the potential of the active compound sponge Callyspongia pseudoreticulata as an environmentally friendly antibiofouling. This sponge was collected from the waters around Barrang Lompo, South Sulawesi. The sponge was extracted with various solvents (hexane, butanol, methanol, and water) using the maceration method. Barnacle Balanus amphitrite was taken from around the mouth of the Maros river and maintained in an aquarium at 25C. Test the antifouling activity of sponge extract using the 24 well polystyrene plates, Corning Cell Wells method. The observation was made after 48 hours, and the number of larvae that attached, died, metamorphosed, or did not settle was calculated under a microscope. Identification of chemical compound groups using phytochemical tests. The results showed that butanol extract has antifouling activity but is not toxic to Balamis amphitrite, with an EC50 value of 0.24 ug/mL, and other extracts do not show any antifouling activity. Phytochemical results show that butanol extract contains alkaloids, steroids, and terpenoids. From the results of this study, It can be concluded that Callyspongia pseudoreticulata can be developed as a new antibiofouling alternative source to replace tributyltin. Keywords: Callyspongia pseudoreticulata, Balamis amphitrite, Marine fouling organisms Share Link | Plain Format | Corresponding Author (Rosmiati Rosmiati)

3	Aquatic Biodiversity	ABS-46
Multi Spesies Teridentifikasi Secara Molekuler Dari Hasil Tangkapan Ikan Teri di Daerah Trenggalek, Jawa Timur Feni Iranawati (a,b*), Ledhyane Ika Harlyan (b,c), Muhammad Arif Rahman (b,c), Dewa Gede Raka Wiadnya(c) a) Program Studi Ilmu Kelautan, Fakultas Perikanan dan Ilmu Kelautan Universitas Brawijaya. *fe_iranawati[at]ub.ac.id b) Marine Resources Exploration and Management Research Group, Fakultas Perikanan dan Ilmu Kelautan Universitas Brawijaya c) Program Studi Pemanfaatan Sumberdaya Perikanan, Fakultas Perikanan dan Ilmu Kelautan Universitas Brawijaya Abstract Perikanan di Indonesia secara umum merupakan perikanan multispesies. Salah satu indikasi adanya penurunan stok sumberdaya ikan adalah menurunnya jumlah spesies yang dapat ditangkap. Penelitian ini bertujuan melakukan identifikasi secara molekuler spesies ikan teri yang tertangkap di area Trenggalek, Jawa Timur. Sampel diperoleh dari hasil tangkapan nelayan yang dijual di tempat pelelangan ikan. Identifikasi dilakukan secara molekuler menggunakan DNA mitokondria yang diamplifikasi dengan primer gen cytochrome c oxidase subunit 1 (CoI). Hasil BLAST dari 11 sampel yang diambil pada penelitian ini menunjukkan terdapat 6 spesies ikan teri yang masuk dalam famili Engraulidae. Hasil ini dapat digunakan sebagai informasi dasar keberadaan spesies teri yang ada di daerah tersebut. Di masa mendatang, apabila jumlah spesies yang ditemukan lebih sedikit dari yang ditemukan, akan menjadi petunjuk diperlukannya upaya pengelolaan sumberdaya ikan yang lebih efisien dan efektif. Keywords: Ikan teri, Engraulidae, DNA mitokondria, CoI, BLAST Share Link | Plain Format | Corresponding Author (Feni Iranawati)

4	Aquatic Biodiversity	ABS-57
Karakteristik Suara Gelembung Air Laut Yang Dikeluarkan Ikan Layang (Decapterus Sp) Dapat Dijadikan Atraktor Berbasis Suara Pada Areal Rumpon Arham Rumpa (a*),Najamuddin (b), Safruddin (b), M. Abduh Ibnu Hajar (b) a) Dosen Teknik Penangkapan Ikan, Politeknik Kelautan dan Perikanan Bone, Kabupaten Bone, 92718, Sulawesi Selatan, Indonesia *arhamrumpa[at]gmail.com b) Dosen Fakultas Ilmu Kelautan dan Perikanan, Universitas Hasanuddin, Makassar 90245, Sulawesi Selatan, Indonesia Abstract Abstrak. Rumpon mampu menarik spesies ikan untuk berasosiasi dengannya. Banyak pertanyaan terkait kinerja rumpon itu sendiri, salah satunya adalah karakteristik suara yang ada dibawah rumpon tersebut. Spesies ikan pelagis yang umumnya tertangkap pada areal rumpon adalah Ikan Layang (Decapterus sp). Umumnya memproduksi suara gelembung air laut. Pertanyaannya apakah gelembung air laut tersebut sebagai bentuk komunikasi dilaut. untuk saling berinteraksi, mempertahankan diri atau menghindar dari predator ?. Tujuan penelitian adalah mengidentifikasi karakteristik suara dikeluarkan oleh schooling ikan yang berasosiasi pada areal rumpon, mekanisme produksi suara gelembung air laut dan hubungan antara karakteristik suara dengan terkosentrasinya schooling ikan yang kemungkinan bisa dijadikan atraktor berbasis gelombang bunyi untuk menarik schooling ikan mendekati areal rumpon. Parameter yang diamati adalah bentuk karakteristik dan mekanisme produksi suara dibawah rumpon, mekanisme produksi suara, bentuk karakteristik frekuensi gelembung air laut dan pengaruhnya terhadap schooling ikan khususnya schooling layang. Jenis penelitian metode observasi dengan pendekatan akustik pasif (PAM). Hasil menunjukkan bahwa ikan layang teridentifikasi mengeluarkan gelembung air laut saat terkosentrasi penuh dibawah rumpon pada dini hari, kondisi kaget dan kondisi ada ikan predator datang menyerang, peak frekuensi suara gelembung air laut rata-rata pada kisaran 583,90 Hz sedangkan tekanan suara yaitu rata-rata pada kisaran 86 dB. Temuan tersebut sesuai dengan sensitivitas maksimum dan minimum pendengaran ikan pada umumnya, sehingga karakteristik suara gelembung air laut memungkinkan pengembangan atraktor berbasis gelombang suara untuk menarik dan mengkonsentrasikan spesies ikan tertentu pada areal rumpon Keywords: Karakteristik suara, Gelembung Air Laut, Layang (Decapterus sp), Rumpon, Atraktor Share Link | Plain Format | Corresponding Author (Arham Rumpa)

5	Aquatic Biodiversity	ABS-64
Checklist of Polychaetes in Freshwater, Estuarine and Coastal Marine Habitats in Malaysia Raz Shauqeena Batrisyea Razmi Shah, Yusof Shuaib Ibrahim, Tulio F. Villalobos-Guerrero, Masanori Sato 1 Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, 21030, Kuala Nerus, Terengganu Malaysia 2 Department of Marine Ecology, Centro de Investigacion Cientifica y de Educacion Superior de Ensenada, 22860, Ensenada, Baja California, Mexico 3 Department of Earth and Environmental Sciences, Graduate School of Engineering and Science, Kagoshima University, 1 21 35 Korimoto, Kagoshima 890 0065, Japan Abstract A comprehensive checklist and research efforts of polychaete studies in Malaysian waters, including a freshwater species, are presented here. A total of 56 species from 29 polychaete families was reported from the early 1870s until recently, and Nereididae being the most species rich family with nine species. This checklist comprises of records from existing checklist, recent literatures, and new and overlooked records. New records and new species were also included. Despite the increased effort of polychaete studies in the past decade, the taxonomic effort in describing species in the country is rather low. Malaysian polychaetes were recorded from the Peninsular Malaysia, but very few from the Borneo Island. Most of previously recorded species inhabit the intertidal and estuarine habitats, and few from the subtidal and freshwater habitats. Hence, this review indicated that more urgent research needs to be done as the accumulation curve of species has not reached asymptote. Keywords: Bathymetric, freshwater, inventory, north borneo, new records Share Link | Plain Format | Corresponding Author (Raz Shauqeena Batrisyea Razmi Shah)

6	Aquatic Biodiversity	ABS-69
Zooplankton composition at the estuarine plume front of Terengganu estuary. Thaarshini Paramasivan, Roswati Md Amin Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, 21030, Kuala Nerus, Terengganu, Malaysia. Abstract The spatial pattern of zooplankton community was studied during southwest monsoon season at the estuarine plume front of Terengganu estuary. Zooplanktons were collected at three main regions of the estuary that were plume, front and shelf during May and August 2022, where comparison of zooplankton composition and diversity and relationship of environmental factors were done. Frontal zone of the estuary yields greater density of zooplankton during high tide with tide height greater than 1.5 m in both surface and mid waters. Zooplanktons sampled during the formation of front due to the convergence of plume and shelf waters also recorded high zooplankton density. The average density of zooplankton recorded in the month of May and August 2022 was 5422.18 individuals per cubic meter and 8030 individual per cubic meter respectively. In both sampling events, copepod group yield higher abundance which was 82.1% and 90.0% respectively. The dominant genus recorded for the month of May 2022 was Oithona sp., and Paracalanus sp. and shift to Oncaea sp., and Microsetella sp. for the month of August 2022. The findings from this study contributes in the baseline understanding of the dynamics of the estuarine plume fronts in shaping the zooplankton community. Keywords: Zooplankton, Composition, Estuarine Front Share Link | Plain Format | Corresponding Author (THAARSHINI PARAMASIVAN)

7	Aquatic Biodiversity	ABS-96
Biodiversity and distribution of Squat Lobster of the family Munididae Ahyong, Baba, Macpherson & Poore, 2010 (Crustacea: Decapoda: Anomura: Galatheoidea) in Indonesia Ernawati Widyastuti (a*), Suyarso (a) Research Center for Oceanography, National Research and Innovation Agency *ernawidya[at]yahoo.com Abstract Squat lobsters of the family Munididae were recorded from Indonesian waters with 15 genera and 72 species. It counts 15.6% of the world species. Most of the squats lobster in Indonesia were obtain from international expedition conducted since 1873 to the most recent in 2018. These squat lobsters live in shallow to deep waters. In Indonesian waters they were found in the Sunda Strait, Hindian Ocean, Java Sea, Makasar Strait, Sulawesi Sea, Maluku Sea, Seram Sea, Banda Sea and Arafura sea. This paper intends to review the presence of squat lobster from the family Munididae and their distribution in Indonesian waters. Keywords: Munididae- squat lobster- biodiversity- distribution Share Link | Plain Format | Corresponding Author (Ernawati Widyastuti)

8	Aquatic Biodiversity	ABS-115
Aspek bilogi ikan pari yang dominan didaratkan di Pelabuhan Perikanan Pantai (PPP) Bajomulyo Pati Jawa Tengah Gatut Bintoro, Eko Sulkhani Yulianto, Tri Djoko Lelono, Muhammad Arif Rahman, Elfirain Anjelina Fisheries and Marine Science Faculty Universitas Brawijaya Abstract Ikan pari (batoidae) merupakan spesies yang dominan didaratkan di PPP Bajomulyo Pati dengan nilai ekonomis yang tinggi karena menjadi tangkapan sampingan maupun utama. Pengkajian aspek biologi pada ikan pari masih belum di lakukan secara menyeluruh yang mengakibatkan beberapa spesies ikan pari tidak memiliki status konservasi yang baik,sehingga menyebabkan kekhawatiran terhadap kepunahan. Ekploitasi yang tinggi terhadap spesies pari dapat mengakibatkan kepunahan karena sifat ikan pari yaitu kematangan seksual yang panjang, pertumbuhan lambat dan fekunditas rendah. penelitian ini bertujuan untuk menganalisi aspek biologi ikan pari berupa hubungan Panjang berat, komposisi spesies, rasio jenis kelamin dan TKG (tingkat kematangan gonad). Penelitian ini di lakukan pada bulan Februari - April 2022 di PPP Bajomulyo kabupaten Pati. Terdapat 5 jenis spesies ikan pari yang dominan didaratkan di PPP Bajomulyo yaitu Neutrygon kuhlii, Hemantura gerrardi, Himantura walga dan Gymnura poecilura yang memiliki pola pertumbuhan allometrik negative sedangkan pada sepesies Pateobatis uarnacoides memiliki pola pertumbuhan allometric positif. Rasio kelamin pari didominasi oleh spesies jantan dengan proporsi 53% dari jumlah sampel keseluruhan. Pada analisis TKG didapatkan persenatase kematangan pada spesies Neutrygon kuhlii, Hemantura gerrardi, Himantura walga, Gymnura poecilura dan Pateobatis uarnacoides berturut-turut sebesar 48.3%, 26.9%, 52.4%, 53.3% dan 33.35. dari penlitian ini di dapatkan speseies pari yan dominan di daratkan di PPP Bajomulyo terdapat 4 spesies yang terindikasi tertangkap dalam keadaan dewasa dan 1 spesies masib belum dewasa dengan spesies jantan yang dominan didaratkan di PPP Bajomulyo kabupaten Pati Keywords: Konservasi, Laut Jawa, Panjang Berat, Pari, Tingkat Kematangan Gonad Share Link | Plain Format | Corresponding Author (Gatut Bintoro)

9	Aquatic Biodiversity	ABS-137
STUDY OF POPULATION AND MICROHABITAT OF THE BANGGAI CARDINALFISH (Pterapogon Kauderni) IN BILALANG BAY, UWEDIKAN VILLAGE, LUWUK TIMUR SUB DISTRICT, BANGGAI REGENCY Samsu Adi Rahman*1), Herdiyanto Djiada1), Mohammad Safir2), Achmad Suhermanto3), Mohammad Syakir4) 1Program Study of Aquaculture, Faculty of Fisheries, University of Muhammadiyah Luwuk, Luwuk, Indonesia- 2Department of Aquaculture, Faculty of Animal Husbandry and Fisheries, Tadulako University- Palu, Indonesia- 3Karawang Maritime and Fisheries Polytechnic, Karawang, Indonesia, 4JOB Pertamina-Medco E&P Tomori Sulawesi, Jakarta, Indonesia. *Corresponding author: Samsu Adi Rahman, jcbanggai[at]gmail.com Abstract The banggai cardinalfish (Pterapogon kauderni) is an endemic fish in the Banggai waters which has a beautiful body shape and color. This fish has experienced a population decline caused by over-exploitation and reduced microhabitat which correlates with the banggai cardinalfish population. This study aims to determine the population of the banggai cardinalfish and their microhabitat in Bilalang Bay, Uwekan Village, Luwuk Timur Sub District, Banggai Regency. The research was conducted from January to February 2023 in Bilalang Bay, Uwekan Village, Luwuk Timur Sub District, Banggai Regency, Central Sulawesi. Retrieval of research data using the Underwater Visual Survey (UVS) method using a transect belt measuring 20mx5m (2.5m left and right of the transect rope). Observations made included recruits (<25 mm) Total Length, juveniles (25-60 mm), and adults (>60 mm). The results of observing the density of the banggai cardinalfish differed based on the five observation sites, the highest density of the banggai cardinalfish at the recruit, juvenile, and adult stages was in location II, while the highest population based on its size was the adult size. The recruiting stage of the banggai cardinalfish is only found in locations I, II, and III, with the microhabitat only being found in sea urchins and anemones. Keywords: Banggai cardinalfish, Bilalang Bay, Endemic, microhabitat, population, Uwedikan Village Share Link | Plain Format | Corresponding Author (Samsu Adi Rahman)

10	Aquatic Biodiversity	ABS-146
GROWTH PARAMETERS OF YELLOW STRIPE TREVALLY (SELAROIDES LEPTOLEPIS CUVIER, 1833), IN TUBAN WATERS, EAST JAVA T D Lelono, G Bintoro, Ledhyane Ika Harlyan M K Rihmi Facultyof Fisheries and Marine Sciences, Universitas Brawijaya, Veteran Street, Malang, East Java, Indonesia Abstract Yellow stripe trevally (Selaroides leptolepis) is one of the main catch species of seine net (local: cantrang) and is one of the potential demersal fish resources. Yellow stripe trevally fish have high nutritional value and economic value. The great benefits of yellow stripe trevally fish and increased exploitation. This research was conducted at UPT PPP Bulu in February-June 2019. The purpose of this study was to determine the biological conditions and determine the requirements of the population dynamics of yellow stripe trevally fish. The method used in the study is descriptive quantitative with random sampling and to analysis the data using Microsoft Excel and FISAT II programs. Based on the analysis of the biology aspects of fish with a total sample of yellow stripe trevally fish (Selaroides leptolepis) were 535 fish. The relationship between the length and weight of the yellow stripe trevally fish was negative allometric Comparison of male and female sex ratios was 1:1,03. The percentage of gonad maturity (TKG) was 60% Mature and 40% Immature. The gonad maturity index (IKG) value is 2,88%. Length at First Capture (Lc) of 14,51 cm. Length at First Mature (Lm) of 16,24 cm. The growth rate obtained (L&#8734-) of 20,03 cm, the growth rate coefficient (K) was 1,25 per year, and (t0) is -0,140 years. Keywords: Length at First Capture (Lc), Length at First Mature (Lm), population dynamics Share Link | Plain Format | Corresponding Author (Tri Djoko Lelono)

11	Aquatic Biodiversity	ABS-148
Diversity, Phosphate Nutrition and The Benefit of Seaweed as a Functional Food Christina Litaay(a*), Rafidha Dh Ahmad Opier (b), Daniel Deonisius Pelasula (b), Ashri Indriati (a), Marsya Jaqualine Rugebregt (b) a) Research Center for Appropriate Technology, BRIN Subang West Java, Indonesia *christina_litaay[at]yahoo.com b) Research Center for Deep Sea, BRIN Ambon Maluku, Indonesia Abstract Keywords: Functional food- Phosphate nutrition- Seaweed- Species diversity Share Link | Plain Format | Corresponding Author (Christina Litaay)

12	Aquatic Biodiversity	ABS-151
Mangrove Forest Ecosystem in Polewali Mandar:Hopes or Challenges? B. A. J. Gosari, A. Baso, S. Made, Amilluddin, A. Wahid, A. Amri Universitas Hasanuddin Abstract Mangrove forest ecosystem is an important habitat for marine organisms and provides great economic potential. This article aims explaining the role of mangrove forest ecosystems and their economic potential using descriptive analysis. Data taken from related literatures which is then described further. The location of the mangrove is in Polewali Mandar Regency, West Sulawesi Province. Observation of mangrove species was carried out in situ in March 2023 and identification of species was carried out at the water quality laboratory, Faculty of Marine Sciences and Fisheries, Hasanuddin University. The results showed that there were two dominant types of mangroves, namely: Rhizophora stylosa and Sonneratia alba. Economic potential directly by utilizing mangroves as food and boards, while indirectly utilized as a tourist destination. Recently, the extent of mangrove forest in this area was decreasing due to the conversion of mangrove into human settlement, fishpond and uncontrolled mangrove exploitation. Keywords: Mangrove forest, economic potential, Polewali Mandar Share Link | Plain Format | Corresponding Author (Benny Audy Jaya Gosari)

13	Aquatic Biodiversity	ABS-178
Increased Value Added of Seaweed product in South Sulawesi Hamzah Tahang1, Amiluddin1, Arie Changara1, Benny Audy jaya Gosari1, Faisal Amir1, Sabir2, Andi Ramlan3 1. Lecturer at the Faculty of Marine Science and Fisheries, Hasanuddin University, 2. Lecturer at the Faculty of Economics and Business, Hasanuddin University, and 3. Staff at the Center for Coastal and Marine Resource Management Abstract Currently, the total national seaweed production is around 13 million tons, (30% was contributed by South Sulawesi). Especially in 2017 until 2021 South Sulawesi contributed 3.79 million tons. The purpose of this research is to find out the form of trade system, efficiency and profit margins of seaweed marketing in South Sulawesi and to calculate the added value (value added) of seaweed products for each processing activity carried out by various processing businesses. Design a marketing model that can be developed in order to increase the value added, forming an effective and efficient marketing system as well. Marketing and processing institutions for seaweed in order to improve welfare. The research method used to achieve the goal is the analysis carried out by qualitative and quantitative analysis. Data collection was carried out using a structured interview method with a questionnaire followed by a Focus Group Discussion (FGD) method, as well as in-depth interviews with experts in the field of seaweed. The results of previous research originating from various sources from related agencies. An analysis of marketing institutions, margins and trading chains, effectiveness and efficiency was carried out with Farmer^s share analysis, profit level analysis. The results of research on marketing studies show there are various marketing agencies involved in the seaweed trade namely, farmers, collectors, wholesalers and exporters. Each marketing agency has a different amount of margin and profit level. For added value, the result is that each input, both raw materials, additional materials and labor, has added value. Keywords: Seaweed, Trade, added value, South Sulawesi Share Link | Plain Format | Corresponding Author (Benny Audy Jaya Gosari)

14	Aquatic Biodiversity	ABS-179
DINOFLAGELLATE CYSTS ASSEMBLAGE, ABUNDANCE, AND DISTRIBUTION AT THREE ESTUARIES OF BONE BAY, SOUTH SULAWESI, INDONESIA Nita Rukminasari 1*, Indra Junaidi Zakaria 2, Sapto Andriyono 3, and Andi Aliyah Hidayani 1 Faculty of Marine Science and Fisheries, Universitas Hasanuddin, Makassar, South Sulawesi, Indonesia Abstract The main group of primary production component in the freshwater and marine ecosystems are dinoflagellates. This phytoplankton group is importance due to several species could produce a toxin and could develop the occurrence of harmful-algal-blooms (HABs) worldwide. Thirty-six surface sediment samples were collected from three estuaries of Bone Bay (Teko, Tangka dan Panyula Estuary) and dinoflagellates cysts were analyzed. The aim of study was to determine species assemblages, distribution, diversity, richness, and abundance of dinoflagellate cysts. Multivariate analysis was conducted to examine species assemblages, diversity and richness. Eighteen taxa in 11 genera and from 8 families of dinoflagellate cysts were identified. Three most abundance species of dinoflagellate cysts were Alexandrium minutum, Pentapharsodinium tyrrhenicum, and Scrippsiella lachrymosa. There was a species assemblages variation between sampling sites and there was not shifting of autotroph species of dinoflagellate cyst to heterotroph species, it showed that at Bone Bay eutrophication and industrial pollution was not yet occurred. based on the species richness and diversity, Bone Bay was categorized as oligotrophic waters. Keywords: Abundance and distribution, Bone Bay, dinoflagellate cyst, South Sulawesi, species assemblages. Share Link | Plain Format | Corresponding Author (Nita Rukminasari Rukminasari)

15	Aquatic Biodiversity	ABS-185
Relationships Water Quality On the of Growth Gracilaria verrucosa Cultivated With Vertical Rope Method In Brackishwater Pond Ruslaini, Kadir Sabilu, Muis Balubi, Abdul Rahman, Wellem H. Muskita Faculty of Fisheries and Marine Science Halu Oleo University, Kendari, Indonesia Abstract This study aims to analyze the relationship between water quality variables with the growth of seaweed(Gracilaria verrucosa).Maintenance seaweed conducted in selected farms for 42 days, the weight of the seaweed as much as 50 g wet tied with a rope vertically. Variables observed were not free (y) the specific growth while independent variables are (x) the intensity of light, salinity, temperature, degree of acidity, nitrate, phosphate, ammonium, iron and magnesium. Data were analyzed using multiple regression was used to determine independent variables obtained is used to predict the dependent variable. The results showed that the water quality of the 9 variables that were examined was only five variables, namely water quality nitrate, salinity, iron, ammonium and phosphate which significantly affect the growth of seaweed (G. verrucosa) in the pond. Keywords: Water Quality, Gracilaria verrucosa, Growth, vertical Rope methods Share Link | Plain Format | Corresponding Author (Dr. Ruslaini S.Pi, M.P)

16	Aquatic Biodiversity	ABS-206
Length frequency Distribution of Yellowtail Fusilier (Caesio cuning) in several fishing gears in The Managed Access and Reserves of Pasikolaga Buton Strait Muna Regency Mohammad Rais, Musbir , Assir Marimba, Budimawan Faculty of Marine Science and Fisheries, Hasanuddin University, South Sulawesi, Indonesia Abstract Yellow tail fusilier (Caesio cuning) is the dominant catch caught by fishermen in the Buton Strait, especially in the Managed Access And Reserves of Pasikolaga, Muna district, Southeast Sulawesi. The level of utilization of yellowtail is quite high and it is caught in several fishing gears of several sizes so it is necessary to have management arrangements so that the yellowtail fish resource is maintained. This study aims to determine the size distribution of yellow tail fish caught in several fishing gears. This research was conducted in April 2020 - August 2021 in the Buton Strait, Muna Regency. This research was conducted in Mei 2021 - Mei 2022 in the Buton Strait, Muna Regency. This study analyzed the catches of traps, drive gillnets, Surface Gillnet, vertical hand lines, and Bottom gillnets. The results showed that 13828 (Caesio cuning ) fish were caught during the study period with different sizes. The dominant sizes caught in traps were 21-22 cmTL (356) , drive gillnet 21 -22 cmTL (367), net 23-24 cmTL (159), Gillnet 22-23 cmTL (2263) and vertical hand line 19-20 cmTL (1063). Therefore, regulations related to the number of catches and the use of fishing gear need to be regulated in order to create a sustainable yellow tail fishery Keywords: Caesio cuning, Buton Strait, Muna Share Link | Plain Format | Corresponding Author (Mohammad Rais)

17	Aquatic Biodiversity	ABS-224
The Habitat characteristics of Asian moon scallop (Amusium pleuronectes) in the waters of Makassar Strait and Bone Bay, South Sulawesi BUDIYATI1, SHARIFUDDIN BIN ANDY OMAR2, ANDI NIARTININGSIH3, ITA WIDOWATI4, NURDIN KASIM5, MUHAMMAD YUSUF6 Marine and Fisheries Polytechnic of Bone, Hasanuddin University, Diponegoro University, Cokroaminoto University Abstract . The purpose of the study was to describe and compare the habitat characteristics of Asian moon scallop (Amusium pleuronectes) sourced from the waters of the Makassar Strait, and Bone Bay, South Sulawesi. The research method used is a quantitative method with a descriptive type of research. The descriptive type of research was chosen considering the purpose of the study, namely wanting to know and compare the habitat characteristics of asian moon scallops (A. pleuronectes) sourced from the waters of the Makassar Strait and Bone Bay. This research was conducted from January 2022 to October 2022. The study was conducted in 2 (two) regions, namely- the waters of the Makassar Strait, precisely in the waters of Makassar City, and Bone Bay precisely in Bone Regency. This type of research data consists of primary data obtained directly from the field by measuring physical parameters, including 1) Temperature, 2) Salinity, 3) Depth, 4) Dissolved Oxygen, and 5) pH. The results of the analysis obtained the conclusion that the habitat characteristics of asian moon scallops, namely- living in the water temperature range 28.0-30.5 oC, salinity ranges from 28.0-39.0 ppt, depth ranges from 9-20 m, DO ranges from 5.0-6.0 ppm and pH ranges from 5.60-8.75. Based on the results of these measurements, it was concluded that the habitat of asian moon scallops in the waters of the Makassar Strait with those in the waters of Bone Bay has relatively the same (similar) characteristics. Keywords: Kerang simping, Asian Moon Scallop, Water Quality Share Link | Plain Format | Corresponding Author (Budiyati Budiyati)

18	Aquatic Biodiversity	ABS-232
Distribution Pattern of Caulerpa Lentillifera Grapes in South Sulawesi Waters in Supporting Production Continuity Hadijah Hadijah1, Hasanuddin Remmang1, Zainuddin2 1. Universitas Bosowa 2. Universitas Hasanuddin Abstract Sea grapes Caulerpa lentillifera or commonly also known by the local language lawi-lawi Bulaeng (Makassar), Latoh (Java), the language of trade green caviar is currently one of the mainstay of seaweed commodities by the Ministry of Maritime Affairs and Fisheries, because this type is in demand by export destination countries such as Japan, China, Philippines and Vietnam. This is because this sea grape is rich in minerals such as: I, P, Zn, Ca, Mg, Se, Fe, Mn, Co- vitamins such as: B vitamins, vitamin E, and some essential unsaturated fatty acids. In addition, it contains bioactive compounds including sesquiterpenoids, diterpenoids, &#42933--sitosterol and caulerpenin which function as anti-cancer, anti-oxidative, anti-diabetic, help reduce cholesterol and prevent cardiovascular disease. With a broad market uptake, C. lentillifera sea grape has the potential to be used as an alternative commodity that can increase the income of fishermen who cultivate seaweed. The problem is, the seeds used only rely on seeds from the surrounding waters, so the production is seasonal and highly dependent on nature. This study aims to map the distribution of C. lentillifera sea grapes in South Sulawesi waters which have the potential as a source of seeds which will then be cultivated en masse by the community using technology and innovation. The research was carried out from August 2022 to October 2022. Sampling of Caulerpa sp was carried out at 3 stations where sea grapes grow in the waters of Takalar Regency using a square frame measuring 25x25 cm placed on a transect line along the coast. The results showed that the distribution pattern of C. lentillifera in the waters of Puntondo Takalar Village, South Sulawesi, was clustered with a Morisita index of 12 (value > 1) at GPS points Lat -5.592957o, Long 119.472463o to Lat -5.593118o, Long 119.472872o. Relative closure values were 69% for C. lentillifera and 31% for C. racemosa. The distribution frequency of C. lentillifera was found at station 2 observation stations while C. racemosa was only found at stations 1 and 3. Water quality included Salinity 30-34 ppt, temperature 28o-30o, pH 7.33-7.39, brightness 50-70% , the current speed is 0.0038-0.0051 cm/s. Keywords: sea grapes- spread- South Sulawesi Share Link | Plain Format | Corresponding Author (Hadijah Mahyuddin)

19	Aquatic Biodiversity	ABS-236
Seagrass Condition in Salissingan Island and Gusung Durian Sandbar of Balabalakang archipelago, Western Sulawesi Province, Indonesia Yayu Anugrah La Nafie1*, Nenni Asriani2, Gunawan1e Just Try to Submit This Sample Abstract 1 Department of Marine Science, Faculty of Marine Science and Fisheries Hasanuddin University, Jalan Perintis Kemerdekaan km 10 Tamalanrea Makassar 2 Fisheries Science Study Program- Faculty of Agriculture, Fisheries and Animal Husbandry- University of Sembilanbelas November Kolaka Abstract Seagrass is acknowledged for their important functions as values. They can act as breeding, feeding and nursery grounds for many marine biotas, protecting the beach behind it by dampening wave actions, as carbon sinks and many others. However, seagrass is declining worldwide, including in many places in Archipelagic State, Indonesia. This study aims to find out seagrass conditions in Salissingan island and Gusung Durian Sandbar of Balabalakang archipelago, in Western Sulawesi Province. A rapid assessment on seagrass condition was applied. A quadrat/ frame (50cm x 50cm) was divided into 4 grids (25x25cm2) used to estimate the seagrass, macro and turf algae percent covers as well as the seagrass density. Furthermore, some other associated biota (e.g. sea urchins and gastropods) found in the quadrat were also recorded. There were four seagrass species (Cymodocea rotundata, Halophila ovalis, Halodule uninervis and Thalassia hemprichii) found in both Salissingan island and Gusung Durian. In Salissingan island, seagrass total density ranged from 9,83-566 shoots.m-2, percent cover 1,81 % - 30%, alga cover 0,03 - 8,85b% and turf alga cover ranged from 0,20-43,96%. Whereas in Gusung Durian Island, seagrass total density ranged from 211,67 - 245,50 shoots/m2, percent cover from 12-17%, macroalgae coverage ranged 0,04-2,71% and turf algae cover 1,67 - 8,91 %. Seagrass condition in both locations is considered sparse. These sparse conditions and varied density may be due to turtle grazing in those areas, abiotic factors or anthropogenic activities through boating and fishing. Keywords: Seagrass condition, Salissingan, Gusung Durian, Balabalakang, Western Sulawesi Share Link | Plain Format | Corresponding Author (Yayu Anugrah La Nafie)

20	Aquatic Biodiversity	ABS-245
The Classification of Sponge Functional Growth Forms as a Reference for Ecological Assessments Singgih A Putra1,2, Rohani Ambo-Rappe3*, Jamaluddin Jompa3, and Nicole J de Voogd4,5 1Doctoral Program of Fisheries Science, Faculty of Marine Science and Fisheries, Hasanuddin University, Makassar, Indonesia. 2Center for Quality Assurance Development of Vocational Education in Maritime, Fisheries, Information and Communication Technology (BPPMPV KPTK), Gowa, Indonesia. 3Department of Marine Science, Faculty of Marine Science and Fisheries, Hasanuddin University, Makassar, Indonesia. 4Marine Biodiversity, Naturalis Biodiversity Center, Leiden, The Netherlands. 5Institute of Environmental Sciences, Environmental Biology Department, Leiden University, Leiden, The Netherlands. Abstract Coastal biodiversity assessment and monitoring often overlook the presence of sponges (Porifera). This is due to the complexities involved in their identification, which is influenced by environmental conditions, resulting in high morphological plasticity and polymorphism. Therefore, several optional morphological characteristics (based on imagery), i.e., their appearance, and growth forms, have been proposed as a suitable monitoring method and can be applied across all oceans. In this study, the functional growth forms of shallow-subtidal sponges belonging to the class Demospongiae Sollas, 1885, were analyzed. Specimen collection was carried out from July 2020 to March 2021 in the Spermonde Archipelago, Indonesia, using the roving technique, e.g., diving, snorkeling, or trampling. The findings revealed the identification of thirty-seven species of shallow-subtidal sponges, which were classified into five groups based on their functional growth forms, including their variations and key characteristics. This result provides valuable insights that may aid in further sponge study, coral reef monitoring, and environmental assessment activities. Keywords: benthic survey, community assessment- field guide- identification- monitoring- shallow water- tropical coastal Share Link | Plain Format | Corresponding Author (Rohani Ambo Rappe)

21	Aquatic Ecology and Conservation	ABS-7
REPRODUCTIVE CYCLE, SIZE AT MATURITY AND FECUNDITY OF GIURIS MARGARITACEUS IN LIMBOTO LAKE ARAFIK LAMADI (a,b*) Dewa Gede Raka Wiadnya (c), Maheno Sriwidodo (d), Feni Iranawati (d) a) Doctoral Program, Faculty of Fisheries and Marine Science, University Brawijaya. Jl. Veteran, Malang 65145, East Java, Indonesia. Email: arafik_lamadi[at]student.ub. ac.id b) Department of Aquaculture, Fisheries and Marine Science Faculty, Universitas Negeri Gorontalo. Jl. Jendral Sudirman No. 6, Gorontalo 96138, Gorontalo, Indonesia. Tel./fax.: +62-435-821125. Email: arafik_lamadi[at]ung.ac.id c) Department of Fisheries and Marine Resources Utilization, Faculty of Fisheries and Marine Science, Universitas Brawijaya. Jl. Veteran, Malang 65145, East Java, Indonesia d) Department of Aquaculture, Faculty of Fisheries and Marine Science, Universitas Brawijaya. Jl. Veteran, Malang 65145, East Java, Indonesia e) Department of Marine Science, Faculty of Fisheries and Marine Science, Universitas Brawijaya. Jl. Veteran, Malang 65145, East Java, Indonesia Abstract Understanding the reproductive biology particularly sexual maturity, reproductive cycle and fecundity of fish is useful for fisheries management. Unfortunately, there is no information about reproductive biology of Giuris margaritaceus in Limboto Lake. 614 specimens of the fish were collected over a 12 month. Their length varied between 6.5 and 20.9 cm. The fecundity ranged between 3,356 and 114,424. Male and female fish reached first sexual maturation at different size, 9.9 and 10,7 cm, respectively. This information is needed to determine the lowest acceptable harvest length of this fish under the management aim to enter all female fish for reproduction minimum one time in their life. We estimated the reproductive period of Giuris margaritaceus applying oocytes diameter, histological examination of ovaries and monthly mean GSI. All of these methods gave a consistent result about that Giuris margaritaceus could spawn throughout the year, with peaks in July and November. Based on this result, Giuris margaritaceus spawners can be protected during July and November for entering the reproductive stock. The results of this study might facilitate future efforts at fine tuning fishing effort for a proper management of Giuris margaritaceus. Keywords: Reproduction, Sex ratio, gonado somatic index, snakehead Gudgeon, huluu Share Link | Plain Format | Corresponding Author (Arafik Lamadi)

22	Aquatic Ecology and Conservation	ABS-11
Does heterochely and handedness exist in mud crab Scylla olivacea? Rusydi Rozaimi1, Alexander Chong Shu-Chien2,3, Youji Wang4, Sutikno Sutikno5, Mhd Ikhwanuddin1,6, Xi Shi7, Ghazali Azmie1, Hanafiah Fazhan1,2,6, Khor Waiho1,2,6* 1 Higher Institution Centre of Excellence (HICoE), Institute of Tropical Aquaculture and Fisheries, Universiti Malaysia Terengganu, Kuala Nerus, 21030, Terengganu, Malaysia 2 Centre for Chemical Biology, Universiti Sains Malaysia, Minden, 11900, Penang, Malaysia 3 School of Biological Sciences, Universiti Sains Malaysia, Minden, 11800, Penang, Malaysia 4 International Research Center for Marine Biosciences, Ministry of Science and Technology, Shanghai Ocean University, Shanghai, 201306, China 5 Research Center for Applied Zoology, National Research and Innovation Agency (BRIN), Cibinong-Bogor 16911, Indonesia 6 STU-UMT Joint Shellfish Research Laboratory, Shantou University, Shantou, 515063, Guangdong, China 7 Engineering Technology Research Center of Henan Province for Aquatic Animal Cultivation, College of Fisheries, Henan Normal University, Xinxiang, 453007, China Abstract Bilateral organisms often exhibit asymmetric body traits that serve different biological functions. Heterochely and handedness are especially common in crabs as crab chelipeds are used in food acquisition, courtship and mating, and territorial defense. However, little is known about the heterochely status of the economically important mud crab Scylla olivacea. Based on the analysis of 151 healthy individuals with intact appendages, we confirmed that S. olivacea is heterochelous, and most (70.2%) were right-handed, based on the significantly larger propodus length (PL), propodus depth (PD) and propodus width (PW) of the right cheliped and the presence of molariform teeth. The size of PL, PD, and PW on the major cheliped, regardless of if the major cheliped is left. Heterochely in S. olivacea is not influenced by sex. Understanding the heterochely and handedness of mud crabs is beneficial for the optimisation of limb autotomy method and mud crab aquaculture sector. Keywords: Heterochely- mud crab- right-handedness- cheliped size- asymmetric body traits. Share Link | Plain Format | Corresponding Author (Khor Waiho)

23	Aquatic Ecology and Conservation	ABS-37
The characteristic of a coastal landscape ecosystem at Simeulue island, Aceh Province Achdial Farhan Abus (a), Tasnim Lubis (b*), Nanda Saputra (c), Abiyulail Alatas Abus (b), Nurul Adilla Alatas Abus (b) a) Aceh Landscape Development Centre, Langsa, Indonesia b) Universitas Sumatera Utara, Medan, Indonesia *tasnimlubis[at]usu.ac.id c) Sekolah Tinggi Ilmu Tarbiyah Al-Hilal Sigli, Sigli, Indonesia Abstract The coastal landscape ecosystem is a sensitive part of the change, for better or worse. The damage that occurs in the area will have a very serious impact on the survival of the coastal landscape ecosystem. In addition, the coastal landscape has dynamic physical changes every time. The coastal landscape management system must consider its characteristics to achieve this sustainability. This study aimed to analyze the characteristics of the Simeulue Island coastal landscape ecosystem that provides a capacity for community needs. The knowledge and information on the characteristic found are very important for determining policy directions in the sustainable management of the coastal landscape of Simeulue Island. Simeulue Island was hit by a smong (tsunami) twice, in 1907 and 2004, and it impacted the coastal landscape ecosystem. This study used a survey method with stages consisting of preparation, inventory, analysis, and recommendations. The evaluation of ecological quality used a Key Performance Indicator (KPI) analysis to compare real conditions with the standard criteria. The results of the study showed that plants could improve environmental quality if their numbers are continuously maintained and added to suit the needs of land use in the coastal landscape ecosystem of Simeulue Island. KPI value was &#8805- 81% indicating that the plant meets the criteria. The assessment of ecosystem quality from all aspects regarding standards showed the value of KPI percentage for physical aspects of the area was 76%, functional was 79%, and plant characteristics was 93%. The recommendation is to pursue an increase in the amount of coconut and mangrove vegetation. It is obvious that these types of plants overcome seawater abrasion and maintain the quality of water absorption on Simeulue Island. Keywords: Ecosystem- coastal landscape- Key Performance Indicator- Simeulue island Share Link | Plain Format | Corresponding Author (Tasnim Lubis)

24	Aquatic Ecology and Conservation	ABS-41
The Ethnobotany of Alaban Tree in the Formation of Coastal Landscapes at Pulau Banyak Barat, Aceh Singkil Tasnim Lubis (a*), Ike Revita (b), Rita Khathir (c), Kamsinah (d), Achdial Farhan Abus (e) a) Universitas Sumatera Utara, Medan, Indonesia *tasnimlubis[at]usu.ac.id b) Universitas Andalas, Padang, Indonesia c) Universitas Syiah Kuala, Banda Aceh, Indonesia d) Universitas hasanuddin, Makassar, Indonesia e) Aceh Landscape Development Centre, Langsa, Indonesia Abstract The diversity of vegetation in the coastal landscape of Pulau Banyak Barat (West Banyak Island) has characteristics that are different from other regions. One of them is the Alaban tree that grows in the coastal landscape of West Banyak Island. Haloban ethnic naming is derived from Alaban tree which grows well West Banyak Island. As one of the raw materials for making boats and ship accessories, Alaban tree is very familiar with Halobannese who work as catch fishers as their main work. Based on this, the existence of the Alaban tree as one of the typical plants is still being preserved. The purpose of this study was to investigate local knowledge and experiences, perspectives, and perceptions of the Haloban tribe through their culture towards the formation of the coastal landscape ecosystem of West Banyak Island. The ethnography method was used in this study. the technique of data collection were documentation, in-depth interviews, and participant observation. The results of the study showed the role of culture, experience, point of view, and perception of the Halobanese on the coastal landscape ecosystem of West Banyak Island has a big impact on the continuity of Alaban tree. The existence of this coastal landscape ecosystem is very stable and able to continuously provide support for people^s lives. The landscape is shaping as a result of community activities and perceptions that are influenced by local culture. These are local wisdom and indigenous knowledge practices that are still maintained in everyday life. Keywords: Ethnobotany- Coastal landscape- Alaban tree- Halobannese- Pulau Banyak Barat Share Link | Plain Format | Corresponding Author (Tasnim Lubis)

25	Aquatic Ecology and Conservation	ABS-63
Jenis Karang Keras dan Kondisi Tutupan Terumbu Karang di Perairan Torosiaje Kecamatan Popayato, Kabupaten Pohuwato, Provinsi Gorontalo Rahmat Aryanto Dodi, Lorensia Puspita, Nuriah Wulandari, Munika Erpina, Nurhikmah Rasyid, Muhammad Naufal Lukman, Hikman (a) Departemen Perikanan, Fakultas Ilmu Kelautan dan Perikanan, Universitas Hasanuddin, Jl. Perintis Kemerdekaan No. KM. 10, Tamalanrea Indah, Kec. Tamalanrea, Kota Makassar, Sulawesi Selatan 90245 (b) Fisheries Diving Club Universitas Hasanuddin (FDC UNHAS), Jl. Perintis Kemerdekaan No. KM. 10, Tamalanrea Indah, Kec. Tamalanrea, Kota Makassar, Sulawesi Selatan 90245 Abstract Ekosistem terumbu karang memiliki peran penting sebagai sumber kehidupan bagi biota laut lainnya. Penelitian ini bertujuan untuk menyediakan data dari jenis-jenis karang keras dan kondisi terumbu karang di perairan Torosiaje Provinsi Gorontalo yang dilakukan pada bulan Agustus 2022. Metode yang digunakan dalam penelitian ini adalah Underwater Photo Transect (UPT) dengan menggunakan kamera digital sebagai penangkap gambar dengan ukuran frame 58 cm panjang X 44 cm lebar. Identifikasi jeniskarang keras menggunakan buku panduan Coral Finder, Veron dan panduan LIPI, Suharsono. Jenis karang keras yang ditemukan pada perairan Torosiaje terdapat 35 genus karang dengan 4 genus karang yang selalu ditemukan pada lokasi penelitian diantaranya Acropora, Fungia, Porites dan Seriatopora. Kondisi terumbu karang yang ditemukan pada Pulau di perairan Torosiaje berkisar dari 22,52 - 58,85% yang tergolong rusak-baik. Keywords: Karang keras, tutupan terumbu karang, torosiaje, gorontalo Share Link | Plain Format | Corresponding Author (Rahmat Aryanto Dodi)

26	Aquatic Ecology and Conservation	ABS-76
Struktur Komunitas Ikan Karang di Perairan Torosiaje, Kecamatan Popayato, Provinsi Gorontalo Rahmat Aryanto Dodi, Nuriah Wulandari, Munika Erpina, Muhammad Naufal Lukman (a) Departemen Perikanan, Fakultas Ilmu Kelautan dan Perikanan, Universitas Hasanuddin, Jl. Perintis Kemerdekaan No. KM. 10, Tamalanrea Indah, Kec. Tamalanrea, Kota Makassar, Sulawesi Selatan 90245 (b) Fisheries Diving Club Universitas Hasanuddin (FDC UNHAS), Jl. Perintis Kemerdekaan No. KM. 10, Tamalanrea Indah, Kec. Tamalanrea, Kota Makassar, Sulawesi Selatan 90245 Abstract Perairan Torosiaje merupakan tujuan bagi nelayan untuk melakukan aktivitas penangkapan ikan dan tidak jarang dijumpai akan destructive fishing dengan penggunaan bom ikan. Dampak yang diberikan dengan bom ikan tentunya memberikan kerusakan pada terumbu karang sehingga perlu dilakukan penelitian mengenai struktur komunitas ikan karang. Penelitian dilakukan pada bulan Agustus 2022 di 5 pulau perairan Torosiaje yaitu pulau Sandaa, pulau Sandii, pulau Mabassar, pulau Maruangi dan pulau Dulangka. Metode yang digunakan adalah Underwater Vicual Census (UVC) dengan luas pengamatan 250 m2. Hasil dari seluruh lokasi penelitian ditemukan 19 kelompok family dengan 93 jenis spesies ikan karang. Kelimpahan ikan karang tertinggi berada di pulau Sandaa dengan nilai 1,41 ind/m2 dan kelimpahan terendah berada pada pulau Mabassar dengan nilai 0,57 ind/m2, indeks keanekaragaman ikan karang berkisar 1,34-2,30 masuk dalam kategori rendah hingga sedang, indeks keseragaman ikan karang berkisar 0,61-0,83 masuk dalam kategori labil hingga stabil dan indeks dominansi ikan karang berkisar 0,13-0,41 masuk dalam kategori rendah. Keywords: ikan karang, struktur komunitas, torosiaje, gorontalo Share Link | Plain Format | Corresponding Author (Rahmat Aryanto Dodi)

27	Aquatic Ecology and Conservation	ABS-77
KARAKTERISTIK MORFOMETRIK DAN MERISTIK IKAN KAKAP TOMPEL (Lutjanus fulviflamma Frosskal, 1775) DI PERAIRAN SELAT MAKASSAR DAN TELUK BONE, SULAWESI SELATAN Suwarni (a), D. Melinda (b) a) Dosen Fakultas Ilmu Kelautan dan perikanan Universitas Hasanuddin. suwarniliger17[at]gmail.com a) Mahasiswa Fakultas Ilmu Kelautan dan perikanan Universitas Hasanuddin Abstract Penelitian ini dilaksanakan pada awal bulan Mei sampai akhir bulan Juni 2017 di Perairan Selat Makassar (Tempat Pendaratan Ikan Rajawali) dan Perairan Teluk Bone (Tempat Pendaratan Ikan Lappa Sinjai). Penelitian ini bertujuan mengetahui karakteristik morfometrik dan meristik ikan kakap tompel (Lutjanus fulviflamma Frosskal,1775) dan kegunaan dari penelitian yaitu untuk mengetahui apakah ikan kakap tompel di Perairan Selat Makassar dan Teluk Bone satu populasi atau tidak. Sampel Ikan kakap tompel (Lutjanus fulviflamma Frosskal, 1775) diperoleh dari hasil tangkapan nelayan yang didaratkan di Tempat Pendaratan Ikan Rajawali Makassar dan Tempat Pendaratan Ikan Lappa Sinjai. Pengambilan sampel diambil sebanyak 60 ekor yaitu dari TPI Rajawali Makassar sebanyak 30 ekor jantan dan 30 ekor betina serta di TPI Lappa Sinjai sebanyak 30 ekor jantan dan 30 ekor betina. Ikan kakap tompel yang telah diperoleh dibawa ke Laboratorium untuk dilakukan pengamatan morfometrik dan meristik lalu dilakukan uji-T sebagai alat bantu untuk analisis dengan bantuan software SPSS versi 16.0. Berdasarkan hasil pengukuran (Morfometrik) ikan kakap tompel jantan betina di TPI Rajawali Makassar terhadap 29 karakter morfometrik diperoleh 25 karakter yang tidak berbeda nyata (p>0.05) sedangkan untuk karakter yang berbeda nyata (p<0.05) diperoleh 4 karakter yaitu panjang bagian kepala belakang mata (PBKBMT) jantan TPI Rajawali lebih panjang dari pada betina TPI Rajawali, panjang jari-jari keras terpanjang sirip punggung (PJKTRSPG) jantan TPI Rajawali lebih panjang dari pada betina TPI Rajawali, panjang rahang atas (PRA) betina TPI Rajawali lebih panjang dari pada jantan TPI Rajawali, tinggi pipi (TP) TPI Rajawali betina lebih tinggi dari pada jantan TPI Rajawali. Berdasarkan hasil pengukuran dan perhitungan ikan kakap tompel jantan betina di TPI Lappa Sinjai terhadap 29 karakter morfometrik diperoleh 22 karakter yang tdak berbeda nyata (p>0,05) sedangkan untuk karakter yang berbeda nyata (p<0.05) diperoleh 7 karakter yaitu panjang jari-jari sirip dada yang terpanjang (PJSDDTR) betina TPI Lappa lebih panjang dari pada jantan TPI Lappa, panjang jari-jari keras terpanjang sirip punggung (PJKTRSPG) betina TPI Lappa lebih panjang dari pada jantan TPI Lappa, panjang jari-jari terpanjang keras sirip dubur (PJKTRSDB) jantan TPI Lappa lebih panjang dari pada betina TPI Lappa, panjang kepala (PK) betina TPI Lappa lebih panjang dari pada jantan TPI Lappa, tinggi pipi (TP) betina TPI Rajawali lebih tinggi dari pada jantan TPI Lappa, lebar mata (LM) jantan TPI Lappa lebih lebar dari pada betina TPI Lappa, lebar bukaan mulut (LBM) betina TPI Lappa lebih lebar dari pada jantan TPI Lappa. Keywords: Karakter Morfometri, Meristik, Kakap Tompel, Perairan Selat Makassar dan Teluk Bone. Share Link | Plain Format | Corresponding Author (Suwarni Suwarni)

28	Aquatic Ecology and Conservation	ABS-78
Risk Assessment of the Invasive Alien Species in Lake Tempe, South Sulawesi Hikmah Maulifiah Zaim (a), Sharifuddin Bin Andy Omar (b*), Dewi Yanuarita (b), Joeharnani Tresnati (b), Nadiarti Nurdin Kadir(b), Suwarni (b) (a) Master Programs of Fisheries Science, Department of Fisheries, Faculty of Marine Science and Fisheries, Hasanuddin University, Makassar, Indonesia, *sb.andyomar[at]gmail.com (b) Department of Fisheries, Faculty of Marine Science and Fisheries, Hasanuddin University, Makassar, Indonesia Abstract Invasive alien species is a strategic issue in Indonesia because their existence poses a threat to the preservation of biodiversity and the sustainability of ecosystem conservation. Currently, it is known that several alien species have dominated the waters of Lake Tempe so it is feared to affect native species populations, ecosystem processes, and the local economy. This research was conducted from January to June 2022 at Lake Tempe, South Sulawesi. Data collection on alien species was obtained from catches by fishermen using gill nets and bottom traps. Data collection on alien fish characteristics was obtained from literature studies. Analysis of the risk of the presence of alien species using the Freshwater Fish Risk Assessment Model (FRAM) method. The catch showed that in Lake Tempe there were 10 alien species with a positive correlation value of R2 = 0.52 (p <0.05) where the higher the probability of establishment outside their habitat, the higher the risk impact. The highest ecological risk value was found for the Amazon sailfin catfish (Pterygoplichthys pardalis), with a total of 58 indicating that the fish are invasive in Lake Tempe and have a pest status. Therefore, it is necessary to control the Amazon sailfin catfish by reducing the population through massive fishing and increasing its utilization. Keywords: invasive species, ecological risk assessment, Pterygoplichthys pardalis, Tempe Lake, South Sulawesi Share Link | Plain Format | Corresponding Author (Hikmah Maulifiah Zaim)

29	Aquatic Ecology and Conservation	ABS-85
CORRELATION BETWEEN DIFFERENT COMMUNITY ACTIVITIES (INDUSTRY, SETTLEMENT AND PORT) TO THE DISTANCE OF SEAGRASS FOUND AND SEAGRASS COVERAGE IN BUNGKUTOKO ISLAND, KENDARI CITY. Muhammad Ramli(a),Mustika(a), Emiyarti(a), Amadhan Takwir(b), La Ode Muhammad Yasir Haya(a), Arwan Arif Rahman(a), Suci Rahmadani Artika(a)* (a)Department of Marine Science, Faculty of Fisheries and Marine Science, Halu Oleo University, Kendari, Indonesia (b)Department of Oceanography, Faculty of Earth Sciences and Technology, Halu Oleo University, Kendari, Indonesia Abstract Seagrass is a plant that has fully adapted to the marine environment. Seagrass ecosystems play an important role in coastal areas as they provide important habitats for a variety of marine animal species. Community activities around seagrass ecosystems are one of the important factors for the survival of seagrasses. This study aims to determine how the distance of community activities can affect the distance of seagrass finding and seagrass cover on Bungkutoko Island, Kendari City. To achieve these aims, the field survey was done by taking seagrass coverage data as a main data, and seagrass density, temperature, pH and salinity was also measured as a supporting data. Besides, the distance between the community activities with the seagrass found was measured by using software, Google Earth. The results showed that seagrass was found closer to the location of industrial activities, then followed by settlement activities and finally port activities. Meanwhile, seagrass coverage looks denser at a closer distance from community activities, which means that the farther seagrass is found from the mainland, the lower the coverage will be. This study are important as a reference for determining the distance of seagrass conservation locations from community activities. Keywords: Seagrass, Seagrass Coverage, Community Activities, Density Share Link | Plain Format | Corresponding Author (Suci Rahmadani Artika)

30	Aquatic Ecology and Conservation	ABS-95
DISTRIBUSI LOKASI DAN SEBARAN JENIS LAMUN DI JAWA TIMUR (STUDI LITERATUR TAHUN 2016-2021) Yanida Azhari Julianinda(a*) Program Studi Ilmu Kelautan, FPIK - Universitas Brawijaya, Malang 65145, Indonesia *yanidaazhari[at]gmail.com Abstract Padang lamun memiliki fungsi ekologis yang unik salah satunya memberikan banyak manfaat bagi organisme yang tinggal di wilayah pesisir. Namun, perubahan ekosistem dan keanekaragaman hayati pada skala lokal maupun global telah banyak terjadi pada beberapa ekosistem. Begitu pula pada ekosistem padang lamun, khususnya di wilayah Jawa Timur. Penelitian ini berguna untuk mempermudah pengorganisasian dan integrasi data sebaran lokasi dan jenis lamun di Jawa Timur. Selain itu, penelitian ini memiliki tujuan untuk menggambarkan wilayah distribusi lamun di Jawa Timur yang dapat menjadi acuan mengenai sebaran, tipe substrat dan habitat dari lamun. Oleh karena itu penting untuk mengetahui bagaimana distribusi lokasi dan jenis lamun secara berkala. Penelitian ini merupakan penelitian berbasis studi literatur dengan menggunakan metode systematic review menggunakan data tahun 2016-2021 (5 tahun). Ditemukan sebanyak 11 jenis lamun di 8 lokasi penelitian diantaranya Lamongan, Gresik, Situbondo, Banyuwangi, Malang, Pacitan, Bangkalan, dan Sumenep. Jenis lamun yang ditemukan diantaranya Enhalus acoroides, Thalassia hemprichii, Cymodocea rotundata, Cymodocea serrulata, Haludole pinifolia, Halodule uninervis, Halophila decipiens, Halophila ovalis, Halophila minor, Syringodium iseotifolium, dan Thalassodendron ciliatum. Kondisi lamun di Jawa Timur juga tergolong cukup baik dengan nilai kerapatan tertinggi sebesar 2524-5592 ind/m2 pada Perairan Situbondo dan kerapatan jenis terendah sebesar 4,42-13,05 ind/m2 pada Perairan Banyuwangi. Nilai persentase tutupan lamun tertinggi sebesar 37-62% di Perairan Situbondo dan nilai tutupan terendah sebesar 3,56-16,44% di Perairan Malang. Keywords: Distribusi- Lamun- Jawa Timur Share Link | Plain Format | Corresponding Author (Yanida Azhari Julianinda)

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