Fisheries and Aquatic Sciences

한국수산과학회 (The Korean Society of Fisheries and Aquatic Science)
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Population dynamics and stock status of spotted sardinella (Amblygaster sirm, Walbaum, 1792) in the Natuna Sea, Indonesia

  • Moh Fauzi (Research Center for Fishery, Indonesia National Research and Innovation Agency) ;
  • Tirtadanu (Research Center for Fishery, Indonesia National Research and Innovation Agency) ;
  • Andina Ramadhani Putri Pane (Research Center for Fishery, Indonesia National Research and Innovation Agency) ;
  • Siti Mardlijah (Research Center for Fishery, Indonesia National Research and Innovation Agency) ;
  • Tegoeh Noegroho (Research Center for Fishery, Indonesia National Research and Innovation Agency) ;
  • Achmad Zamroni (Research Center for Fishery, Indonesia National Research and Innovation Agency) ;
  • Thomas Hidayat (Research Center for Fishery, Indonesia National Research and Innovation Agency) ;
  • Heri Widiyastuti (Research Center for Fishery, Indonesia National Research and Innovation Agency) ;
  • Budi Nugraha (Research Center for Fishery, Indonesia National Research and Innovation Agency) ;
  • Hufiadi (Research Center for Fishery, Indonesia National Research and Innovation Agency) ;
  • Prawira Atmaja Tampubolon (Research Center for Fishery, Indonesia National Research and Innovation Agency)
  • 투고 : 2023.11.08
  • 심사 : 2023.12.28
  • 발행 : 2024.04.30
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초록

Small pelagic fish populations have long been exploited by various fishing gears in the Natuna Sea, and since the 1970s, purse seine exploitation has expanded to offshore fishing grounds. Various small pelagic fish species are exploited from these waters including spotted sardinella (Amblygaster sirm). This research was conducted for 22 months, from March 2019 to December 2020. The fish sample was taken from the purse seine fleet's catch in the fisheries management area (FMA) 711 Natuna Sea and Karimata Strait, which was brought to Pemangkat fishing port in the West Kalimantan Province, Indonesia. This paper aims to determine the exploitation status of spotted sardinella in the Natuna Sea as a recommendation material for management policies. The methods used in this analysis are estimated age, cohort, population parameters, and spawning potential ratio of spotted sardinella. The results show three primary cohorts of spotted sardinella in the Natuna Sea, with ages ranging from 9 months to 3.1 years and a maximum attainable age (longevity) of 4.3 years. The asymptotic value (L∞) is 21.79 cmFL in length, with a growth rate (K) of 0.65 per year. The natural mortality rate (M) was 1.19, the total mortality rate (Z) was 2.19, and the fishing mortality rate (F) was 0.99. The exploitation rate (E) was 0.45 and the stock status was still in a sustainable condition. Therefore, the sardinella fisheries can be developed using a precautionary approach and focus on the ecosystem sustainability of FMA 711.

키워드

과제정보

We appreciated the work of Mr Toha Putra as the enumerator for small pelagic resources in Pemangkat. We also thank the Head Office of the Fishing Port in Pemangkat for granting permission to collect data.

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