Indonesian Fisheries Research Journal
Vol 24, No 1 (2018): (June) 2018

POPULATION DYNAMIC AND EXPLOITATION RATE OF THE BLUE SWIMMING CRAB (Portunus pelagicus) IN THE KENDARI BAY WATERS

Ali Suman (Research Institute for Marine Fisheries, Ministry for Marine Affairs and Fisheries, Jl. Raya Bogor No. 507, Nanggewer Mekar, Cibinong, Bogor, Jawa Barat 16912, Indonesia)
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)
Khairul Amri (Research Institute for Marine Fisheries, Ministry for Marine Affairs and Fisheries, Jl. Raya Bogor No. 507, Nanggewer Mekar, Cibinong, Bogor, Jawa Barat 16912, Indonesia)
Andina Ramadhani Putri Pane (Research Institute for Marine Fisheries, Ministry for Marine Affairs and Fisheries, Jl. Raya Bogor No. 507, Nanggewer Mekar, Cibinong, Bogor, Jawa Barat 16912, Indonesia)
Pratiwi Lestari (Research Institute for Marine Fisheries, Ministry for Marine Affairs and Fisheries, Jl. Raya Bogor No. 507, Nanggewer Mekar, Cibinong, Bogor, Jawa Barat 16912, Indonesia)



Article Info

Publish Date
14 Aug 2018

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.

Copyrights © 2018






Journal Info

Abbrev

ifrj

Publisher

Subject

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology

Description

Indonesian Fisheries Research Journal published in Indonesia by Center for Fisheries Research. Indonesian Fisheries Research Journal publishes research results on resources, fisheries biology, management, environment related to marine, coastal and inland ...