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BIO-EXPLOITATION STATUS OF BOMBAY DUCK (Harpadon nehereus HAMILTON, 1822) ON TRAWL FISHERY IN TARAKAN WATERS



North Kalimantan Province, notably Tarakan City marine waters, is one of the important fishing ground in boundary area between Indonesia and Malayasia within Sulu Sulawesi Marine Ecoregion. It produces approximately 100 mt/yr of Bombay duck (Harpadon nehereus) with valued of US$ 750,000. The sustainability of this fishery is a crucially concern due to its: substantial economic contribution and the, significant dependence of small-scale fishers on this species for their livelihoods. The fishing intensity has a growing threats to their habitats. To evaluate the vulnerability of individual species of might cause from over exploitation, the spawning potential ratio (SPR) approach was applied to describe the status of ibombay duck fisheries. This approach provides the ability to determine fishing mortality as reference points to ensure its sustainability. The objective of this study is to understand this fish biomass resilience to harvesting. The calculated SPR based on the value of estimated length of first capture or Lc at 208 mm is equivalent to the SPR of 28%. With a base line of stocks are generally thought to risk recruitment declining when SPR < 20%, recent finding indicated that the existing fishery can be generally described as nearly fully exploited. In recognition of this fishery has an ecological importance and socio-economic significance, the sustainable development of Bombay duck fisheries should be initiated through developing local fishery committee to provide a their local fishery management plan.


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B1707424Koleksi DigitalArchivelago Indonesia Marine Library - Perpustakaan Kementerian Kelautan dan PerikananAvailable

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Koleksi Digital
Publisher Ind.Fish.Res.J : Jakarta.,
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Language
English
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NONE
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