High Exploitation of Quoyi Parrotfish Scarus quoyi (Valenciennes, 1840) Population in Wallacea Line, Makassar Strait, Indonesia M T Umar1, N Firani1, A Tuwo2, 3, Suwarni1, B S Parawansa1, I Yasir2,3, A Yanti3,4, P Y Rahmani3,5, R Aprianto3 and J Tresnati1,3
1Fisheries Department, Faculty of Marine Science and Fisheries, Universitas Hasanuddin, Makassar, Indonesia.
2Marine Science Department, Faculty of Marine Science and Fisheries, Universitas 3Multitrophic Research Group, Universitas Hasanuddin, Makassar, Indonesia.
Hasanuddin, Makassar, Indonesia.
4Aquatic Resources Management Study Program, Graduate Program, Bogor Agricultural University, Bogor, Indonesia.
5Marine Science Study Program, Faculty of Marine Science and Fisheries, Universitas Hasanuddin, Makassar, Indonesia.
Abstract
The Spermonde Archipelago is an archipelago crossed by the Wallacea Line. This archipelago has fishery resources and a high diversity of reef fish species. Quoyi Parrotfish is a Scaridae life in abundance in tropical and subtropical waters in the Indo-Pacific region. Quoyi Parrotfish is a consumption fish marketed nationally and internationally to neighboring countries such as Hong Kong, Taiwan, and Singapore. The increasing market demand causes fishing activity for Quoyi Parrotfish to continue to increase. If this actual fishing activity continues, it can endanger the sustainability of this fish resource. There has been no study concerning the exploitation rate of Quoyi Parrotfish in Wallacea Line, Makassar Strait. The study aims to assess the exploitation rate of the Quoyi Parrotfish. Samples were taken from the fishers catch landed at the Fish Landing Port, Makassar City. The population parameters measured were growth, total mortality, natural mortality, fishing mortality, and exploitation. The growth curve was L_t=41.25[ 1-e^(-0.18(t-0.8164) )]. The total mortality rate was 1.56, natural mortality rate was 0.56, fishing mortality rate was 0.98, and exploitation rate was 0.64. This exploitation rate and Y^/R close to the maximum indicated the high exploitation of the Quoyi Parrotfish Population in Wallacea Line, Makassar Strait, Indonesia.
Keywords: Spermonde Archipelago, growth rate, mortality, exploitation, yield per Recruitment
