Species composition and size distribution of sharks and rays caught in Bali Strait and its surrounding area and its relation to fisheries management


Selvia Oktaviyani, Wanwan Kurniawan, Fahmi Fahmi
 DOI  https://doi.org/10.32491/jii.v20i1.509

Abstract

Muncar is one of the shark production centers in Java, where the fishing ground in Bali Strait and its surrounding area. Routine data collection was carried out from May 2018 to April 2019 at the Brak Fish Market and the Muncar Coastal Fishing Port (PPP), Banyuwangi to determine the species composition and size distribution of sharks and rays caught in Bali Strait and its surrounding area. Data collection was done by census and almost of all individuals were identified to species level and and measured. During the study, 3.551 individuals of sharks and rays were landed in this port, consisting of 75 species from 25 families (48 species of sharks, one species of ghost shark and 26 rays species). The most common types of sharks belong to Carcharhinidae and for the rays was Dasyatidae. Among these, thirteen species were listed in Appendix II CITES, i.e. Carcharhinus falciformis, Alopias pelagicus, A. superciliosus, Isurus oxyrhinchus, I. paucus, Sphyrna lewini, S. zygaena, Mobula mobular, M. tarapacana, M. thrustoni, Glaucostegus typus, Rhynchobatus australiae and Rhyna ancylostoma. Most of sharks and rays caught were juvenile to adolescent and at immature or maturing stages.

Keywords

Carcharhinidae; CITES; Dasyatidae; Bali Strait

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