APLIKASI TEKNOLOGI AKUSTIK DALAM PENENTUAN DISTRIBUSI DAN KELIMPAHAN IKAN PELAGIS PADA MUSIM BARAT DI PERAIRAN ENGGANO BENGKULU

Bakhtiar, Deddy (2011) APLIKASI TEKNOLOGI AKUSTIK DALAM PENENTUAN DISTRIBUSI DAN KELIMPAHAN IKAN PELAGIS PADA MUSIM BARAT DI PERAIRAN ENGGANO BENGKULU. In: Prosiding Seminar Nasional dan Rapat Tahunan Dekan Bidang Ilmu-ilmu Pertanian PTN Wilayah Barat. Badan Penerbitan Fakultas Pertanian UNIB, Bengkulu, pp. 1134-1141. ISBN 978-979-8389-18-4

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Abstract

This study aims to estimate the abundance of pelagic fish as the basis in determining the potential for sustainable and distribution of pelagic fish resources in Enggano waters on the west season. The research was conducted with acoustic survey methods. The design of the survey in the form of systematic parallel transects. The results showed that the average density of pelagic fish in the waters around the island Enggano on the west season at 331 kg / km ² with a total abundance of 6247 tonnes, it means that the potential magnitude of pelagic fish sustainably by 3123.5 tons / year that may be commercialized in waters around the island of Enggano. Small pelagic fish in waters Enggano tend distributed in coastal waters or into between 0-100 meters above the thermocline layer with a total abundance of 711.4 tons. While for large pelagic fishes tend abundant in waters 100-150 meters deep with a total abundance of 5535.1 tons. Distribution of pelagic fish, mainly small pelagic fish near the surface waters show a close relationship with the distribution of water temperature, phytoplankton and zooplankton that developed because of the phenomenon up welling.

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