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All Journal Biodiversitas Journal of Biological Diversity
DUTO NUGROHO
Graduate Program, Department of Biology, Faculty of Mathematics and Natural Sciences, Universitas Indonesia. Jl. Lingkar Kampus Raya, Kampus UI, Gedung E Lt. 2, Depok 16424, West Java
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology

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The estimates spawning potential ratio of three dominant demersal fish species landed in Tegal, north coast of Central Java, Indonesia DUTO NUGROHO; MUFTI P. PATRIA; JATNA SUPRIATNA; LUKY ADRIANTO
Biodiversitas Journal of Biological Diversity Vol. 18 No. 2 (2017)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d180258

Abstract

Nugroho D, Patria MP, Supriatna J, Adrianto L. 2017. The estimates spawning potential ratio of three dominant demersal fish species landed in Tegal, north coast of Central Java, Indonesia. Biodiversitas 18: 844-849. Java Sea is one of the important marine waters for fisheries purpose in Indonesia. The rich diversity of marine fish has been exploited for decades. Among them, demersal fish resource was commercially targeted by coastal fishers. The sustainability of demersal fishery is a crucial concern given the substantial economic contribution and its significant dependence of small-scale fishers for their livelihoods. The fishing intensity is considerable growing and tends to become threats their habitats. Three dominant species (Priacanthus tayenus, Scolopsis taeniopterus and Upeneus sulphureus) were selected in this study. To evaluate the vulnerability of these species to their bio-exploitation level, the spawning potential ratio (SPR) approach were applied. The calculation based on estimated length of first capture (Lc) indicates that SPR those demersal species occurred at less than 20%. These values indicate that existing fishery can be categorized as nearly fully exploited. Across broad range of species, 40% SPR is generally accepted as a proxy for Maximum Sustainable Yield (MSY) for recruitment overfishing in less resilience fish population.
Co-Authors JATNA SUPRIATNA LUKY ADRIANTO MUFTI P. PATRIA