The estimates spawning potential ratio of three dominant demersal fish species landed in Tegal, north coast of Central Java, Indonesia

Duto Nugroho, Mufti Petala Patria, Jatna Supriatna, Luky Adrianto

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)844-849
Number of pages6
JournalBiodiversitas
Volume18
Issue number2
DOIs
Publication statusPublished - 1 Apr 2017

Keywords

  • Demersal dominant species
  • Java
  • North coast
  • Spawning potential ratio

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