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Ap'idatul Hasanah
Research Institute for Marine Fisheries, Ministry for Marine Affairs and Fisheries, Jl. Raya Bogor No. 507, Nanggewer Mekar, Cibinong, Bogor, Jawa Barat 16912, Indonesia
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology

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POPULATION DYNAMIC AND EXPLOITATION RATE OF THE BLUE SWIMMING CRAB (Portunus pelagicus) IN THE KENDARI BAY WATERS Ali Suman; Ap'idatul Hasanah; Khairul Amri; Andina Ramadhani Putri Pane; Pratiwi Lestari
Indonesian Fisheries Research Journal Vol 24, No 1 (2018): (June) 2018
Publisher : Research Center for Fisheries

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (309.897 KB) | DOI: 10.15578/ifrj.24.1.2018.%p

Abstract

Kendari Bay waters consitute a potential blue swimming crab (BSC) fishing ground in WPP NRI 714 (the Banda Sea). The intensive fishing activities have been increasing from year to year that raised concern to the fishing that will disturb resource sustainability. Therefore, an alternative sustainable management is advisable. The purpose of this research was to examine the population dynamics and exploitation rate of BSC in the Kendari Bay waters conducted between January and November 2016. The results show the isometric of BSC growth pattern and balance of male and female ratio. The length at first capture (Lc) of BSC was 116.65 mm (carapace width),smaller than the length at first maturity (Lm) at 119.7 mm (carapace width). The von Bertalanffy growth equation for the blue swimming crab was L(t) = 182.0[1-e-0.91 (t - 0)] and the fishing mortality rate (F) was higher than the natural mortality rate (M). The blue swimming crab exploitation rate calculated BSC from Kendari Bay has exceeded the optimum rate of 0.73 per year and is indicating a category “overfishing”. Therefore, to maintain the BSC stock sustainability, a management measure is needed to reduce the current fishing effort of approximately 46 % from the current effort and regulation of net mesh size.
Co-Authors Ali Suman Andina Ramadhani Putri Pane Khairul Amri Pratiwi Lestari