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91	Marine and Fisheries Biotechnology	ABS-111
THE EFFECTIVENESS OF GLASS BOTTLES LED UNDERWATER LAMP (LACUDA) ON STATIONARY LIFT NET IN BONE DISTRICT WATERS Nurwahidin*- Tri Setianto- Muhammad Maskur- Rahmatang Marine and Fisheries Polytechnic of Bone Politeknik Kelautan dan Perikanan Bone Abstract Underwater lamp (Lacuda), especially from LED type, have not been widely applied to the stationary liftnet fishing gear. This study aims to determine the effectiveness of auxiliary fishing gear for Lacuda with glass bottles and petromax lamps. The research method used is experimental fishing by collecting data on the number of catches between Lacuda and Petromaks Lamps. The data were analyzed using a parametric T (Chi Square) test to determine the type of lamp that is effective in fishing activities. In addition, operational costs of each type of lamp were also analyzed to determine the most efficient type of lamp. The T-test result of 0.491 which is smaller than the 0.5% significance level indicates that there is no significant difference between the both. However, from an operational cost standpoint, the use of Lacuda is approximately 50% more efficient than petromax lamps. The results of the T test which did not differ between the two types of lamps were allegedly due to the long less data collection period Keywords: Catch, Liftnet, Lacuda, Petromaks Share Link | Plain Format | Corresponding Author (Nurwahidin Nurwahidin)

92	Marine and Fisheries Biotechnology	ABS-118
FIRST NEAR COMPLETE MITOGENOME OF THE RHIZOCEPHALAN PARASITE, Sacculina beauforti. Gusti-Afiz G.R.N.*, Ismail NurulHayati., Fazhan H., Ikhwanuddin M., and Waiho K. Institute of Tropical Aquaculture and Fisheries, Universiti Malaysia Terengganu, 21030, Kuala Nerus, Terengganu, Malaysia Abstract The genetic information of rhizocephalan^s parasite, especially its mitogenome, is important nowadays due to some reports of infection of the rhizocephalan^s parasite on the aquaculture crab species and other commercial crab species. Some of these parasite group is known to infect crustaceans and caused sterilization and damage to the gonad of the crabs. The parasite infection is species-specific which will cause a sudden outbreak if the infected organisms are accidentally introduced into aquaculture facilities. There is no reliable cure for this parasite up to now, the only solution is to mass killing all the infected crabs. Due to the limited information on these parasites, we sequenced for the first time the nearly complete mitochondrial genome sequence of the rhizocephalan parasite under the family Sacculinidae. The sequencing was made using Next-Generation Sequencing (NGS) rather than using the conventional method which needs the primers as the starter template of the sequencing. The nearly complete mitogenome is 15,380 bp for Sacculina beauforti, which consists of 13 protein-coding genes, 2 rRNA genes, 22 tRNA genes, and one major incomplete of the control region annotated using the online server. Comparative analysis of the order of the genes with other rhizocephalan showed a similar arrangement with other parasites from the same rhizocephalan group. Phylogenetic analysis of the 13 protein-coding genes showed a closed relationship based on the monophyletic clade observed between the parasites from the same family after adding the mitogenome of the copepods as the outgroups. Keywords: rhizocephalan- mitogenome- sacculinidae- parasite Share Link | Plain Format | Corresponding Author (Gusti Afiz Gusti Ruslan Noor)

93	Marine and Fisheries Biotechnology	ABS-147
QUALITY OF SKIPJACK TUNA (Katsuwonus pelamis) CATCHED USING POLE AND LINE REDESIGN VESSEL Nursinah Amir, Aisjah Farhum, Safruddin, Mukti Zainuddin, Alfa Nelwan, Rachmat Hidayat, Suandar Baso, Yopi Novita Faculty of Marine Science and Fisheries Universitas Hasanuddin Faculty of Engineering Universitas Hasanuddin Faculty of Fishery and Marine Science IPB University Abstract The pole and line vessel is one of the fishing vessels in the waters of Bone Bay which contributes more than 50% production of tuna in South Sulawesi, has a special shape with a flying deck and live bait hatches. Pole and line vessels in South Sulawesi generally do not have catch hatches. The catch is placed on the deck without proper handling, so that the quality of the caught fish quickly decreases and results in low fish prices. This study aims to determine the quality of skipjack tuna (Katsuwonus pelamis) caught using a pole and line redesign vessel. The research was conducted on pole and line vessel operating in Bone Bay, Luwu Regency. Determination of vessels and sampling of skipjack tuna using accidental sampling technique. The samples taken were fish placed on deck and fish in the redesigned pole and line vessel holds. Parameters tested were Total Plate Count, E. coli, water content, protein, fat, and pH. Data were analyzed descriptively and presented in tabular form. The results showed that the quality of skipjack tuna stored in the redesigned pole and line vessel holds was better than that stored on deck Keywords: Pole and Line Redesign Vessel, Skipjack Tuna, Quality Share Link | Plain Format | Corresponding Author (Nursinah Amir)

94	Marine and Fisheries Biotechnology	ABS-160
THE USE OF CARRAGENAN FLOUR FOR QUALITY IMPROVEMENT OF AFRICAN CATFISH SURIMI AND PROCESSING ORIGINAL FLAVOR COMMERCIAL STICKS Latif Sahubawa1*, J.P. Sinaga1, M.R. Al Ghofur1, F.A. Kallysta1 1 Department of Fisheries, Faculty of Agriculture, Gadjah Mada University Jl. Flora No. 01, Kampus UGM Bulaksumur Yogyakarta - Indonesia 55281 * Corresponding author: lsahubawa[at]ugm.ac.id Abstract The aim of this study was to determine the effect of carrageenan powder on the physical-chemical-sensory quality of surimi, and its use for processing commercial sticks. The study used 7 concentrations of carrageenan powder: 0.0, 0.5, 1.0, 1.5, 2.0, 2.5 & 3.0%. The mean yield values, water, ash, protein and fat contents of the African catfish meat respectively: 36.61%, 73.72%, 1.49%, 16.78%, 5.63%. The average yield values, moisture content, ash, protein, fat, appearance, folding strength, bite strength, gel strength, degree of whiteness and pH of surimi were 19.26%, 74.30-75.84%, 1.78-2.31%, 12.64-14.67%, 2.97-3.37%, 9.00, 5.00-9.00, 7.00-9.00, 960.75-1,182.96 gr/cm2, 59.96-62.62%, 6.50-6.67. The results of the statistical analysis showed that the concentration of carrageenan powder only had a significant effect on the folding strength parameter. Treatment with a 2.5% produced the highest folding strength value (6.3) but was not significantly different from a 3.0% (5.0) and did not meet the quality requirements of SNI 2694:2013 (minimum 7). The value of appearance, folding strength, bite strength, protein content and water content of African catfish surimi in the treatment of carrageenan concentrations of 0.0-3.0%, were declared to meet the quality requirements of SNI 2694: 2013. African catfish surimi (0.25 kg) can be processed into 1.40 kg of original flavored sticks at a price of IDR 25,000 per 500 grams (total economic value of IDR 70,000). The results of consumer preference analysis on the sticks were: appearance (76% is really liked), smell (88% is really liked), taste (82% is really like), texture (70% is really like). Keywords: African catfish, carrageenan, surimi, quality, sticks, preferences, consumers Share Link | Plain Format | Corresponding Author (LATIF SAHUBAWA)

95	Marine and Fisheries Biotechnology	ABS-204
Effects of Solanum ferox and Zingiber zerumbet extract on the adaptation of Tiger Shrimp (Penaeus monodon) to different salinities Esti Handayani Hardi, Raviv Zaidan Fadhillah, Gina Saptiani, Yushinta Fujaya Faculty of Fisheries and Marine Science Mulawarman University Abstract Keywords: tiger shrimp, adaptation, salinities, plant extracts Share Link | Plain Format | Corresponding Author (Esti Handayani Hardi)

96	Marine and Fisheries Biotechnology	ABS-209
Coconut milk as the one of the potential natural cryoprotectant for preserving koi (Cyprinus carpio) fish spermatozoa Abinawanto(a*), Devita A (b), Lestari R (a), Bowolaksono A (a) a) Cellular and Molecular Mechanisms in Biological System (CEMBIOS) Research Group, Department of Biology, Faculty of Mathematics and Natural Sciences, Universitas Indonesia, Depok 16424, Indonesia b) Undegraduate School, Department of Biology, Faculty of Mathematics and Natural Sciences, Universitas Indonesia, Depok 16424, Indonesia. Abstract Keywords: coconut milk, cryopreservation, koi fish milt. Share Link | Plain Format | Corresponding Author (Abinawanto Abinawanto)

97	Marine and Fisheries Biotechnology	ABS-211
Field Trial of Vibrio Trivalent Inactivated Vaccine in Cantang Hybrid Grouper (Epinephelus fuscoguttatus x Epinephelus lanceolatus) Alim Isnansetyo1*), Indah Istiqomah1), Desy Putri Handayani1), Muhammad Daffa Hade Pramudya1), Rahma Hamida Aslam1), Aditya Arif1), Susilo Budi Priyono1), Romi Novriadi2), Nur Mayke Eka Normasari3), I Gusti Ngurah Permana4) 1)Department of Fisheries, Faculty of Agriculture, Universitas Gadjah Mada, Jl. Flora, Bulaksumur, Yogyakarta, Indonesia 2) Department of Aquaculture, Jakarta Technical University of Fisheries (Politeknik Ahli Usaha Perikanan), Ministry of Marine Affairs and Fisheries, Republic of Indonesia, Jl. Raya Pasar Minggu, Jakarta, Jati Padang, 12520, Indonesia 3)Department of Industrial Engineering, Faculty of Engineering, Universitas Gadjah Mada, Yogyakarta, Indonesia 4)National Research and Innovation Agency of Indonesia * Corresponding Author: isnansetyo[at]ugm.ac.id Abstract Vibriosis is a major bacterial disease in mariculture including marine fin fish worldwide. Cantang Hybrid Grouper (CHG) is the dominant fin fish species in Indonesian commercial mariculture, that is susceptible to vibriosis. The purposes of this study were to evaluate the effect of vibrio trivalent inactivated vaccine (VTIV) at the field trial level on the immune status, survival, and growth of CHG. A field trial experiment was conducted with two treatments namely vaccination and non-vaccination in two locations, PT Bali Barramundi and CV Maju Bersama Sejahtera, Gerokgak sub-district, Buleleng Regency, Bali. The VTIV is composed of three bacterial strains namely Vibrio harveyi SB25, Vibrio alginolyticus GD22, and Photobacterium damsela subspecies damsela GD05. Initial and booster vaccinations were conducted by intraperitoneal injection. The booster was carried out 14 days post the initial vaccination. Cantang grouper were reared in 3x3 m concrete tanks with a flow-through water system. Parameters observed were immune level, survival, growth rates, and feed conversion ratio (FCR). The results indicated that the titer antibody of vaccinated fish reached 16-fold higher than that of unvacinated fish. Vaccination also improved the phagocytic activity, phagocytic index, and respiratory burst of fish. The vaccinated CHG showed a higher survival rate with the highest survival rate of 96.91%, higher growth rate with the highest absolute growth of 120.14 g, the highest relative growth rate of 4.14%/day and the highest specific growth rate of 1.83%/day compared to the control treatment. Furthermore, the vaccinated CHG showed a more efficient FCR with the lowest FCR of 1.08. Field trial vaccination with VTIV in CHG significantly contributes to the improvement of the immune system. survival and growth performance of fish suggesting the urgent vaccination application in mariculture. Keywords: immune system, feed conversion ratio, growth, survival, Photobacterium Share Link | Plain Format | Corresponding Author (Alim Isnansetyo)

98	Marine and Fisheries Biotechnology	ABS-225
The Investigation of the Ipomea pes-caprae Leaf Extract As Antimicrobial of Staphylococcus aureus Mohamad Gazali, Chair Rani, Widyastuti Umar, M. Ali S, Hayatun Nufus, Shafira Ananda Widya Fadly, Rina Syafitri Department of Marine Science, Faculty of Fisheries and Marine Science, Teuku Umar University. Department of Marine Science, Faculty of Marine Science and Fisheries Hasanuddin University, Makassar, Indonesia Deparment of Biology Education, Faculty of Education, Syiah Kuala University Student of Marine Science, Faculty of Fisheries and Marine Science Teuku Umar University Department of Agribusiness, Faculty of Agriculture, Teuku Umar University Abstract One of the health issues confronting Indonesia, particularly Aceh Province, is infectious disease. The bacteria Staphylococcus aureus is one of the causes of the infection. A frequent species on the beach of Labuhan Haji, South Aceh. Ipomoea pes-caprae (L.) Sweet (Convolvulaceae), is regarded as a potential source of bioactive chemicals. The purpose of this study is to compare I. pes-caprae to S. aureus microorganisms. Disk diffusion agar methods can be used to test antibacterial activity. The positive control in this study was ampicillin, whereas the negative control was aquadest. The experimental group and the control group were tested on S. aureus, and the treatments for the experimental group were repeated three times. The biggest inhibitory zone of I. pes-caprae was discovered at 100% concentration level (15.8 mm), followed by 80% concentration (12.5 mm), 60% (8.63 mm), 40% (2.3 mm), 20% (0 mm), and 10% concentration (2.2 mm). Also, in 80% concentration (11.4 mm), aquades extract had considerable inhibitory effect, whereas methanol extract had no inhibitory activity at any concentration level. It appears that ethyl acetate extract has the greatest ability to combat S. aureus bacteria. As a result, it is possible to conclude that I. pes-caprae leaf extract exhibits antibacterial properties against the growth of S. aureus Keywords: Bacteria, Ipomea pes caprae, Staphylococcus aureus Share Link | Plain Format | Corresponding Author (Widyastuti Umar)

99	Marine and Fisheries Biotechnology	ABS-226
The Study of Potential Bioactive Compound of Enhalus acoroides (L.F) Royle as Antioxidant Agent from Pabisi Island Aceh Singkil Mohamad Gazali, Chair Rani, Widyastuti Umar, Rina Syafitri Department of Marine Science, Faculty of Fisheries and Marine Science, Teuku Umar University, West Aceh, Indonesia Department of Marine Science, Faculty of Marine Science and Fisheries Hasanuddin University, Makassar, Indonesia Department of Agribusiness, Faculty of Agriculture, Teuku Umar University, West Aceh, Indonesia Abstract Enhalus acoroides (L.f) Royle is the monotypic marine genus Enhalus in the family Hydrocharitaceae that distributed widely in the intertidal zone of Pabisi Island Aceh Singkil. E. acoroides is traditionally utilized by the local community for cake and biopharmca product. The objective of this study is to screen the potential bioactive compound of E. acoroides extracts as an antioxidant from Banyak Island, Aceh Singkil. The sample of E. acoroides was collected from Pulau Banyak, Aceh Singkil. The research method of these experiments includes phytochemical analysis and antioxidant assay. The research result showed the highest rendement of E. acoroides extract was yielded from n-hexane extract as much as 1,39%. The lowest rendement from ethanol is as much as 0,470%. According to phytochemical analysis showed triterpenoid and phenol compounds are contained in E. acoroides extract. The antioxidant activity in CUPRAC method showed that the ethanol extract was 65,40 mmol trolox/ g extract. Moreover, the ethyl acetate extract was 21,41 mmol Trolox/ g extract, and n-hexane extract yield 22.11 mmol Trolox/ g extract. In FRAP analysis also exhibit ethanol extract (679,50 mmol Trolox/ g extract), ethyl acetate (589,50 mmol Trolox/ g extract) and n-hexane extract (346,50 mmol Trolox/ g extract). Therefore, the discovery of bioactive compound has an important role in nature Keywords: Aceh, Enhalus acoroides, marine, seagrasses Share Link | Plain Format | Corresponding Author (Widyastuti Umar)

100	Marine and Fisheries Biotechnology	ABS-237
Natural Antibacterial from Noni Fruit Extract (Morinda citrifolia) against Fish Pathogenic Bacteria Elmi Nurhaidah Zainuddin (a*), Marlina Achmad (a), Huyyirnah (a), Abustang (a) a) Marine Science and Fisheries Faculty, Hasanuddin University. Jl. Perintis Kemerdekaan Km. 10, Tamalanrea, Makassar 90245. *elmi18id[at]gmail.com Abstract Freshwater fish has a huge potential to be developed in the field of aquaculture in Indonesia. The commodities that have the potential to be cultivated include catfish, tilapia, carp, ornamental fish, and crayfish. Increasing demand for these commodities in Indonesia, both for consumption and non-consumption purposes (ornamental fish) led to increased intensification which has an impact on improving the risk of pests and diseases in aquaculture. In this study, the types of pathogenic bacteria used include Aeromonas hydrophila, Flavobacterium sp., Serratia sp., Pseudomonas stutzeri, Bacillus flexus, and Bacillus cereus. The use of natural antibiotics in aquaculture is highly recommended as a substitute for synthetic commercial antibiotics which have side effects. This study aims to evaluate the potential of noni fruit extract (Morinda citrifolia), as a candidate for natural antibacterial drugs. Noni fruit extraction was carried out by kinetic maceration method using solvents from different polarity (n-hexane, chloroform, and methanol) and the highest yield was found in methanol extract with 3.40%. The antibacterial activity test was carried out using the agar diffusion method and the results showed that all extracts of the noni fruit showed a significant effect on the test pathogenic bacteria (p<0.05). The results of the Tukey test showed that the highest activity was found in n-hexane extract against Flavobacterium sp. and Bacillus cereus with an inhibition zone diameter of 14.33 mm, respectively. From this study, it can be concluded that noni fruit extract (Morinda citrifolia) has the potential as a natural antibacterial drug against fish pathogenic bacteria. Keywords: Keywords: Morinda citrifolia extracts, natural antibacterial drugs, fish pathogenic bacteria Share Link | Plain Format | Corresponding Author (Elmi Nurhaidah Zainuddin)

101	Marine and Fisheries Biotechnology	ABS-238
Evaluation of the Potential of Picung Seed Meat (Pangium edule, Reinw) as a Natural Preservative in Fresh Flying Fish (Decapterus macrosoma) Evi Fitriyani (c), Fahrul (b), Elmi Nurhaidah Zainuddin (a*) a) Fisheries Department, Marine Science and Fisheries Faculty, Hasanuddin University. Jl. Perintis Kemerdekaan Km. 10, Tamalanrea, Makassar 90245. *elmi18id[at]gmail.com b) Fishery Product Technology, Fisheries Department, Marine Science and Fisheries Faculty, Hasanuddin University c) Fishery Product Technology, Department of Marine Science and Fisheries, Pontianak State Polytechnic Jl. Ahmad Yani, Pontianak 78124 Abstract Flying fish (Decapterus macrosoma) is one of Indonesia^s fisheries export commodities. In maintaining the freshness quality of flying fish until consumed, fishermen generally use synthetic preservatives such as formalin and borax which have an impact on the loss of food safety for human consumption. One of the natural preservatives which are safe to use is picung seed meat (Pangium edule Reinw). This study aims not only to see the effectiveness of picung seed meat on the freshness of flying fish but also to see the antibacterial activity of picung seed against pathogens in foods. The results showed that the treatment of picung seed meat had a significant effect on chemical and microbiological parameters on days 2, -4, and -6. The interaction of picung seed meat with salt had a significant effect on chemical and organoleptic parameters on days 2 and 4, and on microbiology during storage. The results of the antibacterial activity test using the agar diffusion method showed that the highest inhibition zone was found in the aqueous extract against Staphylococcus aureus (14.6 mm), while against Salmonella and Escherichia coli, methanol extract was dominant (9.9 mm and 10.1 mm). From these results, it can be concluded that picung seed meat can be used as a natural preservative to maintain the quality of the freshness of flying fish. Keywords: Flying fish (Decapterus macrosoma), Picung flesh-seed extracts, Natural food preservative Share Link | Plain Format | Corresponding Author (Elmi Nurhaidah Zainuddin)

102	Marine and Fisheries Biotechnology	ABS-243
Bioactive compound of Sargassum polycystum for the potential antiviral of WSSV main protease (VP26): an In Silico Approach Asmi Citra Malina A.R.Tassakka(1*), Latifa Baharuddin(1), Marlina Achmad(1), Israini Wiyulandari Iskandar(2), Jamaluddin Fitrah Alam(1), Andi N Renita Relatami(3), Gunarto Latama(1), Budimawan(1), Ellya Sinurat(4) and Rahadian Zainul(5) 1Faculty of Marine Science and Fisheries, Universitas Hasanuddin, Makassar, South Sulawesi, Indonesia- 2Biomedicine, Postgraduate School, Universitas Hasanuddin, Makassar, South Sulawesi, Indonesia- 3Faculty of Medicine, Universitas Hasanuddin, Makassar, South Sulawesi, Indonesia- 4Research Center for Marine and Fisheries Product and Biotechnology, Jakarta- 5Department of Chemistry, Faculty of Mathematics and Natural Sciences Universitas Negeri Padang, Padang, INDONESIA Abstract White spot syndrome virus (WSSV) is a double-stranded DNA virus that causing a high mortality and leading to economic loss in shrimp culture. Virus envelope structural proteins play a major role in viral infection and the initial interaction with the host cell. VP26 is one of the major envelope proteins present approximately 60% in the envelope of WSSV. In this recent study, the bioactive compounds from Sargassum polycystum algae have been investigated by molecular docking against VP26 protein from WSSV in shrimp. This study aims to identify the high-affinity potential bioactive compound of Sargassum polycystum as an antiviral of WSSV in blocking VP26 using computational approach. In this study, 30 compounds were extracted and identified by GC-MS analysis and 28 compounds have screened against VP26 of WSSV using molecular docking. The obtain results showed two compounds that 2(4H)-Benzofuranone, 5,6,7,7A-Tetrahydro-6-Hydroxy-4,4,7A-Trimethyl (-7,3 Kcal/mol) and 1,2-Benzenedicarboxylic acid (-7,2 Kcal/mol) were the high binding affinity score in molecular docking study compared to Chloroquine (-6,5 Kcal/mol) affinity score as a control in this study. Therefore, these natural compounds contained in Sargassum polycystum can be utilized as an antiviral against the WSSV wich can increase productivity in the aquaculture sector. Keywords: Seaweeds, Sargassum, WSSV, In Silico, Shrimp Share Link | Plain Format | Corresponding Author (Asmi Citra Malina)

103	Marine and Fisheries Biotechnology	ABS-244
Molecular docking study of Halymenia durvillei extract (Rhodophyta) against VP26 Protein of White Spot Syndrome Virus Asmi Citra Malina A.R. Tasakka*1,2, Israini Wiyulanda Iskandar3 , Kasmiati 1,2 , Jamaluddin Fitrah Alam 1,2, Widyastuti Umar 1, Rahmi3 and Jamaluddin Jompa1,2 Universitas Hasanuddin Abstract Virus infections have hampered the development of shrimp aquaculture, putting a significant financial strain on the business. White spot disease (WSD) has caused significant mortality in farmed shrimp in many regions. The envelope proteins VP26 are essential in the infection process and interactions with host cells. In this recent study, the bioactive compounds from Halymenia durvillei algae have been investigated by molecular docking against VP28 protein from White Spot Syndrome Virus in Shrimp. The 37 natural compounds of Halymenia durvillei algae identified by GC/MS analysis have shown that E, E, Z-1,3,12-Nonadecatriene-5,14-diol have the highest fitness score in the GOLD calculation in molecular docking with 21.9. The docking analysis would be used to identify a drug-like molecule as an immunostimulant, which would then be optimized for a potential treatment for shrimp aquaculture. This is thought to be the role of the inhibitor, which prevents the viral protein from attaching to the receptor and therefore prevents the WSSV infection. Keywords: GC-MS, Halymenia durvillei, natural compounds, Shrimp aquculture, WSSV Share Link | Plain Format | Corresponding Author (Asmi Citra Malina)

104	Marine and Fisheries Geographic Information System	ABS-35
Sunken Ships, Rising Ecosystems: The Artificial Reef Project in the Waters of Perhentian Island and Susu Dara Island, Terengganu Malaysia Azizi Ali1 , Muhammad Amirullah2, Mohd Fadzil Akhir1, Roslan Latif1, Azri Muhammad1, Adina Roslee1 and Wan Nur Khairunnisa1 1.Institute Oceanography and Environment, Universiti Malaysia Terengganu, Terengganu Malaysia 2.Institute Sumber Marin Asia Tenggara , Department of Fisheries, Malaysia Abstract Artificial reefs from seized illegal foreign vessels is an innovative idea by repurposing abandoned or seized ships and use them to create new habitats for marine life. These reefs can be created by sinking the vessels in designated areas and allowing coral and other marine organisms to grow on and around them. This helps to improve the local marine ecosystem and provides a new diving and snorkelling destination for tourists. Additionally, seizing vessels can deter illegal fishing and smuggling operations, as the sunken ships can act as physical barriers. Therefore, creating artificial reefs from seized foreign vessels can provide a win-win solution for both the environment and the local economy. That is why Institute Oceanography and Environment (INOS) and the Southeast Asian Marine Resource Institute (ISMAT) are working on a mapping project of seized vessels in the waters of the Perhentian and Susu Dara Islands. The mapping was conducted using a multi-beam system from July 3rd to 7th, 2022.This project was aimed to determine the status of seized vessels anchored as artificial reefs from 2020 to 2021. The survey was successful conducted and it meets all the scope of work assigned. Results of this study showed that 20 units artificial reef sunken ships successfully detected and map and only one vessel unit was not successfully detected. The results of analysis and observation from the multibeam image clearly show that all the artificial reef sunken ships , which are 8 units at Pulau Perhentian, were successfully detected on the map. Meanwhile, at the Pulau Susu Dara, 12 artificial reef sunken ships units were successfully detected and map. Keywords: Artificial reef, sunken ships, multibeam system Share Link | Plain Format | Corresponding Author (Azizi Ali)

105	Marine and Fisheries Geographic Information System	ABS-38
Remote Sensing Analysis of Base Cover Of The Water In Bontosua Island, Pangkajene Regency And The Islands A H Nyompa, N Nurdin, A Haris, A Faizal, and C Rani Departement of Marine Science, Hasanuddin University Abstract This research was conducted on Bontosua Island, Pangkajene Islands District, South Sulawesi to map the bottom cover of benthic habitats. Benthic identification and mapping extracted from Sentinel 2A satellite imagery acquired on 29 July 2021 using the Lyzenga Algorithm and unsupervised classification. The field verification using the Rapid Reef Assessment method. The results showed that there were seven dominant objects with a total area of 69.42 ha, namely live coral (17,32 ha), dead coral with algae (11,16 ha), broken coral (12,73 ha), sand (4,43 ha), seagrass (12,61 ha), deep sea, and mix (dead coral, sand, dead coral with algae, and coral debris) (11,17 ha). The largest cover area is live coral which has an area of 25%, and the smallest cover area is sand which is 6% of the base cover of the water Bontosua Island waters. Keywords: Sentinel-2A, Bottom Coverage, and Unsupervised Classification Share Link | Plain Format | Corresponding Author (Achmad Husein Nyompa)

106	Marine and Fisheries Geographic Information System	ABS-60
Utilization of Aerial Photo Techniques Using Drone With Different Flight Paths For Measurement of Fishing Boat Hull Dimensions Paduartama Tandipuang (a), Yopi Novita (b), St Aisjah Farhum (c*), Arham Rumpa (a)) (a) Fishing Technique, Marine and Fisheries Polytechnic of Bone, Bone 92719, South Sulawesi, Indonesia (b) Utilization of Fishery Resources, University of Bogor Agricultural Institute, Bogor 16680, East Java, Indonesia (c) Utilization of Fishery Resources, Hasanuddin University, Makassar 90245, South Sulawesi, Indonesia *aisjahfarhum[at]unhas.ac.id Abstract A Lot of stages and aquipment used to measure the dimensions of fishing boat makes this methode less efficient. The aim of this research was to compare the results of measuring the horizontal dimensions of fishing boat hulls using conventional methods and using drone with different flight path variations. The data collection process is carried out using drones with aerial photography techniques. The 3Dsurvey pilot software is used to make a flight path pattern of 0 and 90 degrees at 40 meters of altitude with 80% overlap. Aerial photo image processing was carried out using agisoft metashape software with medium settings for align photos, dense clouds, and tiled models. From 4 different locations, there were 32 fishing boats that could be measured. The results showed that the dimensional average difference values for LoA was 2,78 cm and Bmax was 1,63 cm with the 90 degrees flight path pattern. The 0 degrees flight path pattern shows the dimensional average difference values of LoA was 3,22 cm and Bmax was 3,92 cm. The Completely Randomize Block Design test stated that both of treatment and block had an influence on LoA. Treatment has no influence on Bmax, but the block had an influence. Tukey^s tests result stated that K1 was not significantly different from K2 on the LoA. The K0, K1, and K2 was not significantly different on the Bmax. This technique can be applied as an alternative method for measuring the horizontal dimensions of fishing boat hulls in large quantities. Keywords: aerial photography, dimension measurement, drone, fishing boat Share Link | Plain Format | Corresponding Author (Paduartama Tandipuang)

107	Marine and Fisheries Geographic Information System	ABS-74
HUBUNGAN CATCH PER UNIT EFFORT IKAN PELAGIS KECIL DENGAN PARAMETER LINGKUNGAN DI JMF TRIANGLE Donwill Panggabean Fakultas Sains dan Teknologi Universitas Terbuka, Jalan Cabe Raya, Kota Tangerang Selatan, Banten 15437, Indonesia. donwill[at]ecampus.ut.ac.id Abstract Produksi perikanan tangkap pada suatu kawasan perairan dapat mengalami kenaikan atau penurunan, hal ini dapat diketahui dari nilai Catch per Unit Effort (CPUE). Penelitian ini bertujuan menghitung nilai CPUE ikan pelagis kecil di JMF triangle dan menjelaskan hubungan CPUE dengan faktor lingkungan (suhu permukaan laut dan klorofil-a). Data yang dianalisa adalah citra Aqua-MODIS, citra SNPP-VIIRS, dan data hasil tangkapan. Analisis menggunakan uji korelasi dan regresi sederhana untuk mengetahui hubungan CPUE dengan suhu permukaan laut (SPL) dan klorofil-a, selanjutnya diperkuat dengan teknik overlay untuk deskriptifnya. Informasi disajikan dalam bentuk peta tematik spasial dan temporal serta info grafis. Hasil penelitian menunjukkan tren peningkatan CPUE total produksi ikan pelagis kecil periode 2012-2015 di perairan JMF triangle. CPUE musiman tertinggi terjadi pada periode Musim Barat, dan terendah pada Musim Peralihan II. Nilai CPUE tertinggi terjadi pada bulan Januari 2013 dengan nilai 0,54 ton/kapal, sedangkan CPUE terendah pada September 2015 dengan nilai 0,052 ton/kapal. Empat jenis ikan pelagis kecil menunjukkan respon yang berbeda-beda terhadap SPL dan klorofil-a, terlihat jenis Layang, Banyar dan Bentong merespon negatif terhadap SPL terutama pada Musim Timur, sedangkan Lemuru memperlihatkan tidak ada hubungan langsung terhadap SPL. Respon ikan pelagis kecil terhadap klorofil-a menunjukkan nilai positif untuk jenis Lemuru dimana kenaikan konsentrasi klorofil-a diikuti pula dengan kenaikan CPUE, sedangkan Layang, Banyar dan Bentong menunjukkan bahwa kenaikan nilai konsentrasi klorofil-a tidak secara langsung berdampak pada naiknya nilai CPUE ketiga jenis tersebut. Keywords: CPUE, ikan pelagis kecil, JMF triangle Share Link | Plain Format | Corresponding Author (Donwill Panggabean)

108	Marine and Fisheries Geographic Information System	ABS-107
Cloud computing using Google Earth Engine and Sentinel-1 imageries to detect changes in coastal city water bodies during rainy season Muhammad Banda Selamat (a), Mahatma Lanuru (a), Muhammad Rijal Idrus (b) a) Marine Science, Universitas Hasanuddin Jalan Perintis Kemerdekaan km 10, Makassar - Indonesia * mbandaselamat[at]unhas.ac.id b) Climate Change Center, Universitas Hasanuddin Jalan Perintis Kemerdekaan km 10, Makassar - Indonesia Abstract Flooding in low-lying urban coastal areas often occurs during periods of extreme rainfall. Although such floods are temporary, they can cause devastating damage and disrupt transportation and economic activity. As a coastal city, Makassar is faced with extreme tidal phenomena as a result of climate change, which under certain conditions contributes to flooding events. This study aims to spatially detect inundations of water bodies in the rainy season in Makassar City in the 2018, 2019, 2020, 2021 and 2022 periods. A number of Sentinel-1 images that work on microwaves and are available on Google Earth Engine have been deployed and processed using Cloud Computing Technology. Water bodies and land were distinguished by backscattering values of VV polarization using Threshold and Boolean techniques. Water body images were converted from raster to vector and polygon areas were calculated. The largest body of water occurred during the 2021 wet season, at about 1,389 ha (1,787 points), and the lowest at about 986 ha (1,653 points) in 2022. Over the five year period from 2018 to 2022, Manggala, Tamalanrea, Tamalate and Biringkanaya districts have the largest water bodies during the wet season. During this period, the area of water bodies varied between 6% and 8% of Makassar city^s total area, with a trend of decreasing by about 1%. Keywords: Sentinel-1, radar, water body, Makassar Share Link | Plain Format | Corresponding Author (MUHAMMAD BANDA SELAMAT)

109	Marine and Fisheries Geographic Information System	ABS-112
PEMANFAATAN CITRA LANDSAT 8 UNTUK ANALISIS PERUBAHAN LUAS DAN KONDISI PADANG LAMUN DI PERAIRAN PULAU WANGI-WANGI DAN PULAU KAPOTA DAERAH KONSERVASI 1)Eka Fauziah, 2)Nurjannah Nurdin, 3)Yayu A. La Nafie, 4)Muh Banda Selamat, 5)Supriadin, 6)M. Rijal Idrus. Program Studi Magister Ilmu Kelautan, Fakultas Ilmu Kelautan dan Perikanan, Universitas Hasanuddin *Email: ekafauziah.unhas2022[at]gmail.com Abstract Utilization of remote sensing technology can be used to effectively and efficiently map and monitor seagrass beds because they are able to produce information spatially and temporally. The aim of the research is to map changes in seagrass conditions and carbon stocks using Landsat 8 Satellite Imagery data over a period of 2013, 2017 and 2022 in the waters of Wangi-Wangi Island and Kapota Wakatobi Island. This research was conducted using Landsat 8 satellite data with a spatial resolution of 30 m (acquired on October 6, 2023, January 26, 2017, and January 22, 2022). Research methods: (1) Field measurement and laboratory analysis to test the accuracy and measurement of seagrass carbon value- and (2) remote sensing to find out the condition of seagrasses broadly. The second approach also performs image classification which consists of 3 levels, this is based on seagrass composition, namely level 1 which is divided into land, shallow water, and deep sea- level 2 consists of four habitat classes namely benthic coral, seagrass, sand, and rubble- and level 3 is the percent cover of seagrass beds which is also divided into three classes of cover, namely dense, medium and low. The results showed that the 7 species of seagrass in the waters of Wanci Island and Kapota Island, with an overall distribution pattern, were clustered. Data analysis using simple regression analysis, obtained a relatively strong relationship between percent cover and total seagrass biomass, analysis of Landsat 8 imagery in general seagrass has decreased every year. Keywords: Lamun- Karbon- OBIA- Landsat 8 Share Link | Plain Format | Corresponding Author (Eka Fauziah)

110	Marine and Fisheries Geographic Information System	ABS-125
The application of remote sensing data on Yellowfin tuna (Thunnus albacares) catchment area related to ENSO-IOD events in Eastern Indian Ocean - Off Coast Java ZD Istnaeni (a*), R Hidayat (b), M Zainuddin (b), JL Gaol (a), D Fitrianah (c) (a) IPB University, Jl. Raya Dramaga, Bogor, West Java, Indonesia 16680 *dindazabhika[at]gmail.com (b) Hasanuddin University, Jl. Perintis Kemerdekaan Km 10, Makassar, South Sulawesi, Indonesia 90245 (c) Bina Nusantara University, Jl. Kebon Jeruk Raya 27, Jakarta, Indonesia 11530 Abstract The eastern Indian Ocean (EIO) is influenced by two climate phenomena, the Indian Ocean Dipole (IOD) and the El-Nino Southern Oscillation (ENSO), affecting the presence and abundance of yellowfin tuna (Thunnus albacares). Monthly satellite data from the Moderate Resolution Imaging Spectroradiometer (MODIS) Aqua L3 of sea surface temperature (SST) and surface chlorophyll-a (SSC), along with the yellowfin longline catch data, were used to investigate the oceanographic conditions and their impact on yellowfin tuna catch in EIO, performed by Generalized Additive Model (GAM). Furthermore, the Dipole Model Index (DMI) and Nino 3.4 were used to measure the climate. The results showed that the combination of SST and SSC had the best performance with an AIC of 1175.004, with SSC becoming the most influential factor with a p-value of 0.0037. Yellowfin tuna tended to prefer the SST with a range of 28-29 C and SSC of 0.13-0.17 ml/m3. In the peak season of 2009, a negative dipole mode of -0.115 occurred with a positive NINO of 0.06, while in 2010, a positive dipole mode of 0.38 occurred with a negative NINO of -0.22. The fishing grounds were also influenced by various events such as fronts and eddies that formed ideal characteristics. Keywords: Eastern Indian Ocean- ENSO-IOD- Fishing Ground- GAM Share Link | Plain Format | Corresponding Author (Zabhika Dinda Istnaeni)

111	Marine and Fisheries Geographic Information System	ABS-129
Comparison of Multispectral Satellite Imagery, AUV, and Geotagging Photos for Mapping Proposed Seagrass Restoration Areas Muhammad Banda Selamat (a*), Rohani Ambo-Rappe (a), Andi Muh. Agung Pratama (b) a) Marine Sciences, Universitas Hasanuddin Jalan Perintis Kemerdekaan km 10, Makassar 90242, Indonesia *mbandaselamat[at]unhas.ac.id b) Graduate Student of Marine Science Study Program Abstract Seagrass beds are plant communities that have adapted to the depths of shallow seawater near the coast. Seagrass communities are believed to play a significant role in the global carbon cycle, their presence in nearshore shallow water areas must be properly inventoried and monitored. The purpose of this research is to compare the level of detail of object recognition from georeferenced mapping technology in determining the location of seagrass beds that need to be restored. AUV photos were taken in shallow water near the coast of Badi Island and have been processed using photogrammetric software. This process created a cloud of pixels in virtual 3D space, allowing it to provide a topographic map of the study area. Furthermore, orthomosaic maps using stitching techniques were created, displaying shallow water landforms near the coast and various types of substrates. In comparison, a large number of geotagged photos were collected at the study site. The elapse time technique was used to photograph benthic substrates at 5 second intervals following the bathymetric tracking lane. The photos are then georeferenced using a time reference from a simultaneously operating mapsonder GNSS. The comparison shows that orthomosaic maps and Sentinel 2 imagery both have advantages in terms of generating synoptic information, however the spatial resolution of the AUV orthomosaic map outperforms Sentinel 2 satellite imagery significantly. In terms of detailed recognition of mapped benthic objects, photo geotagging techniques exceed orthomosaic maps and Sentinel 2 imagery. This study indicates that geotagging techniques must be used in conjunction with AUV-based mapping technology when seagrass restoration sites require preliminary information on existing seagrass species. Keywords: Seagrass, AUV, geotagging photos, Sentinel-2, restoration Share Link | Plain Format | Corresponding Author (MUHAMMAD BANDA SELAMAT)

112	Marine and Fisheries Geographic Information System	ABS-177
Mangrove Mapping and Carbon Stock Estimation at Taman Wisata Alam Mangrove, Angke Kapuk, North Jakarta, Indonesia U Abdurrahman (1), I F Pratyaksa (1), A A Nur (1), M R Badriana (1), C K Jeon (1,2), I M Radjwane (1,3), H S Park (1,2) (1) Korea-Indonesia Marine Technology Cooperation Research Center, Cirebon, Indonesia (2) Korea Institute of Ocean Science and Technology, Busan, Korea (3) Faculty of Earth Science and Technology, Bandung Institute of Technology, Bandung, Indonesia Abstract Taman Wisata Alam Mangrove (TWAM) is a mangrove conservation area located in North Jakarta, Indonesia, whose existence is very important due to has various ecological benefits that ensure the sustainability of the coastal area. Recently, mangroves have also been reported to have significant carbon sequestration capabilities which leads also to an important role in mitigating climate change. This study aims to map mangrove cover as well as its biomass and carbon stock in TWAM. Mangrove mapping in TWAM was carried out using consumer-grade drones and satellite imagery. In addition, a high-accuracy positioning is carried out to improve and assess the accuracy of the resulting map. Then an allometric equation is used to estimate the aboveground biomass which can then be converted into carbon stock. The study results showed that the height of the mangrove canopy in TWAM was 8.77 4.05 m, while mangrove cover showed an increase over the last 10 years with a rate of about 2.9 ha year. The mangrove ecosystem at the study site has also been estimated to have aboveground biomass and carbon stock of 129.70 tons ha and 64.85 tons ha, respectively. The results of increasing mangrove cover and the potential of carbon stock show the importance of designated conservation areas in rehabilitating mangroves. Keywords: Mangrove, biomass, carbon stock, drone, Google Earth Share Link | Plain Format | Corresponding Author (Umar Abdurrahman)

113	Marine and Fisheries Geographic Information System	ABS-208
The Analysis of Pelagic Fishing Areas during Paddy Tropical Cyclone Conditions PL Sabrina Meteorology Study Program, State College of Meteorology Climatology and Geophysics, South Tangerang, Indonesia Abstract The phenomenon of tropical cyclone formation often occurs in water areas with low latitudes, including the Indian Ocean and Pacific Ocean regions. Tropical cyclones around the Indian and Pacific Oceans will affect the dynamics of Indonesian waters. The tropical cyclone phenomenon will affect wind conditions, rainfall, waves, sea surface temperature, and the distribution of chlorophyll in these waters. During tropical cyclone conditions, the magnitude of the wind speed will increase from normal conditions. This condition will affect the movement of water masses in a body of water. When a tropical cyclone occurs, the distribution of temperature and chlorophyll will change with the mixing of water masses from the inside to the surface or the mixing of water masses from one water area to another. Changes in temperature distribution and availability of chlorophyll will affect the distribution of fish, including pelagic fish. Pelagic fish is one of the main fish commodities caught in the waters. Commodities of large pelagic fish in Indonesian waters are in great demand by the public, such as tuna, cakalang, and cob. This study will review wind parameters and surface pressure from Copernicus data to show the tropical cyclone conditions that affect water dynamics. Analysis of pelagic fishing grounds during tropical cyclone Paddy was carried out using data on sea surface temperature and chlorophyll concentrations originating from Aqua MODIS level 2. Tropical cyclone Paddy occurred on 17 until 25 November 2021 in the Indian Ocean. The wind speed increased significantly on November 18 up 22 with a wind speed magnitude of 11 until 15 meter per second. Changes in wind speed will affect the distribution of temperature and chlorophyll in water. The optimum temperature for developing pelagic fish ranges from 28 up 32 Celsius degree with chlorophyll concentrations of 0.3 up 2.0 mg per meter cubic. Keywords: Tropical cyclone, temperature, chlorophyll, pelagic fish Share Link | Plain Format | Corresponding Author (Purwanti Lelly Sabrina)

114	Marine and Fisheries Geographic Information System	ABS-214
Drone-Based Mapping of Coastal Area in Buleleng, Bali M F Hidayatullah (1), U Abdurrahman (1), I F Pratyaksa (1), M R Badriana (1), C K Jeon (1), I M Radjwane (1,2), H S Park (1,3) (1) Korea-Indonesia Marine Technology Cooperation Research Center, Cirebon, Indonesia (2) Faculty of Earth Science and Technology, Bandung Institute of Technology, Bandung, Indonesia (3) Korea Institute of Ocean Science and Technology, Busan, Korea Abstract Buleleng is located in the northern part of the island of Bali which is acknowledged for its marine tourism, dolphin habitat and black sand. Drone utilization for mapping is effective and efficient for observing, investigating, and monitoring coastal areas with high resolution and accuracy. A total of 37 mapping flight missions with consumer grade drones were carried out in the period 6 - 9 October 2022 covered 13.67 km of the coastal area of Lovina, Buleleng and its surroundings. High accuracy positioning is also used to improve mapping accuracy up to 1.09 m. The aerial map covers approximately 952.77 ha with shallow water benthic coverage of 247.12 ha. This study obtained the benthic characteristics of coastal benthic habitat which can be observed to a depth of 5 m. The results of the classification of aerial photos by visual interpretation showed that various classes of objects are fulfilled by various communities such as coral reefs and seagrass. In addition, there are artificial coral reef plantations by Indonesia Coral Reef Garden (ICRG) activity and sea turtles that were found in drone-based mapping. Keywords: Drone, Benthic Mapping, Buleleng, Coastal Share Link | Plain Format | Corresponding Author (Umar Abdurrahman)

115	Marine and Fisheries Geographic Information System	ABS-246
Socio economic Profile of Fishermen Based on Geospatial Census: A Case Study in Parepare Abd. Rahman Rasyid (1), Sazwy Qutbhi Al Azizi (1,3), Dwi Fajria Inaku (2,3), Agus Aris (3), Hermansyah Prasyad (3), Nurjannah Nurdin (2,3*)* Universitas Hasanuddin Abstract Geospatial information is governed by Law No. 4 of 2011, which defines Geospatial Information (GI) as processed geospatial data used for policy formulation, decision making, and implementation of activities related to terrestrial space. The availability of geospatial information facilitates targeted development in urban villages and fosters synergy between central and regional governments. Human resource constraints are prevalent in villages and urban areas across Indonesia, including Wattang Soreang Urban Village in Soreang District, Parepare City, which is located in a coastal area. Community service activities in Wattang Soreang Urban Village aim to collaboratively establish a comprehensive database of the village^s potential, primarily targeting government officials. These activities involve assisting in the development of the village^s potential database, resulting in the creation of a map that reflects the potentials of Wattang Soreang Urban Village. This map serves as a valuable reference for future development planning. The outcomes of these community service activities include training government officials and the local community in spatial-based digital database management, enhancing their knowledge and skills in processing spatial data and inputting spatial-based potential information obtained from field data. The activities also contribute to the development of a standardized and verified spatial technology-based digital database that captures the potentials of Wattang Soreang Urban Village. Dissemination of project activities occurs through online mass media platforms, while the development of the CarryMap application further enhances the utilization of the village^s potentials through appropriate technology solutions Keywords: Geodatabase, Parepare, CarryMap Share Link | Plain Format | Corresponding Author (Nurjannah Nurdin)

116	Natural Disaster Mitigation and Adaptation	ABS-9
Prediction of Particulate Pollution (PM10) During the Transboundary Episodic Haze Events in Malaysia Using Machine Learning Approaches Samsuri Abdullah (a*), Aimi Nursyahirah Ahmad (a), Amalina Abu Mansor (b), Mohammad Fakhratul Ridwan Zulkifli (a), Suriani Mat Jusoh (a), Ku Mohd Kalkausar Ku Yusof (b), Marzuki Ismail (b) a)Faculty of Ocean Engineering Technology and Informatics, Universiti Malaysia Terengganu, 21030, Kuala Nerus, Terengganu, Malaysia *samsuri[at]umt.edu.my b)Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, 21030, Kuala Nerus, Terengganu, Malaysia Abstract This study investigates the haze episode in Malaysia that occurred from January to February and June to August every year. Data years 2005 until 2014 were utilized from the Malaysia Department of Environment (DOE). The parameters used in this study were the particulate matter with an aerodynamic diameter of less than 10 micrometer, ambient temperature, relative humidity, wind speed, ground-level ozone, nitrogen oxide, nitrogen dioxide, carbon monoxide, and sulphur dioxide to gain a better picture of PM10 variability during transboundary haze. Results showed that the maximum PM10 concentration was higher during transboundary haze events in the years 2013 and 2014. CO was strongly and positively correlated with haze due to its higher emission through large-scale biomass combustion from neighboring countries. ANN model was selected as the best-fitted model in this study. It has lower error measures of RMSE (0.07326) and higher accuracy measures in terms of the correlation coefficient (0.6737) with the optimum number of neurons in the hidden layer is 16, while MLR model has the Root Mean Square Error (RMSE, 126.728), and correlation coefficient (0.445) and PCR model with a value of RMSE (261.471), and correlation coefficient (0.445). The results will help the authorities in getting early information for preserving the air quality, especially during transboundary haze episodes. Keywords: Haze- Particulate Matter- Artificial Neural Network- Principal Component Regression- Multiple Linear Regression Share Link | Plain Format | Corresponding Author (Samsuri Abdullah)

117	Natural Disaster Mitigation and Adaptation	ABS-50
Normative Review on Mitigation and Adaptation on Climate Change Related Disaster: Case Study of Sea Level Rise in Lae-Lae Island Maskun1, Achmad2, Naswar3, Nurul Habaib Al Mukarramah*4 ,Valeria Erika Sari Paliling4, Josse Charmario Wara Angi4, Nagida Amalia Putri4, Mohammad Akhsan Adhyatma Amir4,Siti Nurhaliza Bachril4, Hasbi Assidiq4, Royan Juliazka Chandrajaya4 1International Law Department, Faculty of Law, Universitas Hasanuddin, Jl. Perintis Kemerdekaan km 10, Makassar, South Sulawesi 90245 Indonesia 2Civil Law Department, Faculty of Law, Universitas Hasanuddin 3Constitutional Law Department, Faculty of Law, Universitas Hasanuddin 4Assistant Researchers, Faculty of Law, Hasanuddin University, Jl. Perintis Kemerdekaan km 10, Makassar, South Sulawesi 90245 Indonesia Abstract Sea level rise that is occurring on the shores of Lae-Lae island, South Sulawesi, is reported to be increasing very fast. It has been estimated that in the next 80 years, the sea level would be 8-9 times more than what it is today. National law regarding the management of coastal areas and small islands may exist, but it has not yet been translated into a regional government regulation regarding the current situation. This research attempts to address two questions- How does international and national law regulate in addressing sea level rise? Will there be any mandate from the national law to the local government to deal with the sea level rise that occurred in Lae-Lae island, South Sulawesi? This research utilizes normative legal analysis conducted through reviewing international and national legal instruments concerning climate change and health through a statutory approach. This research shows that there is an existence of a legal vacuum at the regional level in mitigating and adapting to sea level rise as a part of climate change related disaster in Lae-Lae island. Therefore, it is recommended for the government to prioritize the legislation process in filling the legal vacuum which contributes to disaster risk reduction. Keywords: Climate Change- Natural Disaster- Mitigation- Adaptation- Sea Level Rise Share Link | Plain Format | Corresponding Author (Nurul Habaib Al Mukarramah)

118	Natural Disaster Mitigation and Adaptation	ABS-83
PEMETAAN KERENTANAN TSUNAMI DI PESISIR DESA SUMBERAGUNG, KECAMATAN PESANGGARAN, KABUPATEN BANYUWANGI MENGGUNAKAN SISTEM INFORMASI GEOGRAFIS Mochamad Arif Zainul Fuad (ab*), Diah Kurniasari (a), Citra Satrya U Dewi (a) a) PS Ilmu Kelautan, FPIK-Univ Brawijaya *fuad_maz[at]ub.ac.id b) Marine Resource Exploration and Management [MEXMA] Research Group Jl. Veteran, Kota Malang, Jawa Timur Indonesia Abstract Tsunami merupakan ancaman utama bagi wilayah pesisir dataran rendah di seluruh dunia. Indonesia berada pada pertemuan beberapa lempeng paling aktif di dunia yang menyebabkan wilayah Indonesia rentan terhadapt bencana alam salah satunya adalah gempa bumi dan tsunami. Penilaian risiko tsunami merupakan komponen penting dalam perencanaan pengurangan dampak dari bencana tsunami. Risiko sendiri merupakan gabungan dari bahaya yang ditimbulkan oleh tsunami (hazard), kerentanan penduduk terhadap suatu peristiwa (paparan), dan kemungkinan terjadinya tsunami. Kerentanan merupakan suatu kondisi yang ditentukan oleh faktor-faktor atau proses-proses fisik, sosial, ekonomi dan lingkungan yang menyebabkan menurunnya kemampuan dalam menghadapi bahaya. Pesisir Desa Sumberagung pernah dilanda tsunami yang terjadi pada 3 Juni 1994 setelah gempa bumu berskala 6 SR. Wilayah pesisir Sumberagung telah berkembang cepat dan aktivitas ekonomi memegang faktor kunci dari wilayah dengan risiko tinggi ini. Daerah dengan pemukiman yang padat dan adanya tempat wisata yang memungkinkan ramai pengunjung akan menimbulkan korban jiwa yang lebih besar jika suatu saat terjadi bencana. Untuk mengurangi dampak yang ditimbulkan ketika suatu saat tsunami kembali melanda daerah ini, maka diperlukan identifikasi area yang rentan terhadap tsunami, tingkat kerentanan wilayah pesisir, dan bagaimana penyebaran tingkat kerentanan tsunami di Desa Sumberagung. Parameter yang digunakan dalam pemetaan kerentanan tsunami diantaranya kemiringan lahan, elevasi daratan, penggunaan lahan, jarak dari garis pantai dan jarak dari sungai. Parameter-parameter yang telah ditentukan akan diolah dengan beberapa proses seperti pemberian kelas kerentanan. Parameter yang telah diolah dan di reklasifikasi akan di analisis dengan metode Weighted Overlay Analysis untuk menganalisa sebaran kerentanan terhadap bencana tsunami di daerah pesisir Desa Sumberagung. Terdapat 5 kelas kerentanan pada pemetaan kerentanan tsunami ini, yaitu sangat rentan, rentan, cukup rentan, kurang rentan dan tidak rentan. Sebelumnya, pemberian kelas pada setiap parameter juga ditentukan. Analisis dengan metode Weighted Overlay ditentukan seberapa besar pembobotan yang diberikan pada masing-masing parameter. Pembobotan yang ditentukan pada penelitian ini adalah 25% untuk parameter elevasi daratan, 20% untuk parameter kemiringan lahan, 20% untuk parameter jarak dari garis pantai, 20% untuk parameter jarak dari sungai, dan 15% untuk parameter penggunaan lahan. Hasil dari penelitian ini menunjukkan bahwa pesisir Desa Sumberagung memiliki kerentanan tsunami dalam kategori Kurang Rentan Keywords: Tsunami, Kerentanan, SIG Share Link | Plain Format | Corresponding Author (Mochamad Arif Zainul Fuad)

119	Natural Disaster Mitigation and Adaptation	ABS-124
Modelling Indoor Air Quality by Selecting Input Parameters Amalina Abu Mansor (1), Samsuri Abdullah (2*), Aimi Nursyahirah Ahmad(2), Marzuki Ismail(1) (1)Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, 21030, Kuala Nerus, Terengganu, Malaysia (2)Faculty of Ocean Engineering Technology and Informatics, Universiti Malaysia Terengganu, 21030, Kuala Nerus, Terengganu, Malaysia Abstract We assess the indoor air quality parameters by monitoring chemical and physical variables at primary school in Terengganu. The data were collected during school hours for modeling purposes. Three models were developed including the stepwise method (Model A), correlation analysis (Model B) and enter method (Model C). It is found that Model A outperformed Model B and C due to high Coefficient of determination (R2) of Model A (R2=0.703) compared to Model B (R2=0.697) and Model C (R2=0.187). The ability of the method to manage large amounts of potential predictor variables, fine-tuning the model to choose the best predictor variables from the available options is the main reason for the best selected method. Keywords: temperature, indoor air quality, regression, school Share Link | Plain Format | Corresponding Author (Amalina Abu Mansor)

120	Natural Disaster Mitigation and Adaptation	ABS-127
MITIGATING CLIMATE CHANGE THROUGH THE ANALYSIS OF TROPOSPHERIC OZONE CONCENTRATIONS AIMI NURSYAHIRAH AHMAD (a*), SAMSURI ABDULLAH (a), AMALINA ABU MANSOR (b), MARZUKI ISMAIL (b),(c) (a) Faculty of Ocean Engineering Technology and Informatics, Universiti Malaysia Terengganu, Kuala Nerus, 21030, Terengganu, Malaysia (b) Institute of Tropical Biodiversity and Sustainable Development, Universiti Malaysia Terengganu, Kuala Nerus, 21030, Malaysia (c) Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, Kuala Nerus, 21030, Malaysia Abstract Ozone is formed in the air by the photochemical reaction of sunlight and nitrogen oxide (NOX), aided by a variety of volatile organic compounds (VOCs) that are photochemically reactive hydrocarbons. This study determines the trend of ozone concentration during daytime and night-time in Kuala Terengganu. Data from 2018 to 2020 on hourly basis including ozone (O3), temperature and solar radiation were used. O3 concentration reaches a peak during the middle of the day around 14:00 hours until 15:00 hours due to reaction of ozone precursors with the present of sunlight that might come from industrial activities and traffic carrying raw materials for the industrial production process. The O3 concentration was decreasing slowly towards evening starting at 16:00 hours and night time around 21:00 hours due to the absence of sunlight and redox reactions. In conclusion, O3 concentration reaches a peak during the middle of the day (14:00 hours until 15:00 hours) while there was starting slower O3 concentration during night time (20:00 hours) due to the photochemical reaction of O3 precursors. Keywords: ozone- air quality- trend- pollutants Share Link | Plain Format | Corresponding Author (Aimi Nursyahirah Ahmad)

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