Korean Journal of Fisheries and Aquatic Sciences (한국수산과학회지)

The Korean Society of Fisheries and Aquatic Science (한국수산과학회)
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Population Parameters and Biomass of the Shiba Shrimp Metapenaeus joyneri in Korean Waters

한국산 중하(Metapenaeus joyneri)의 자원생태학적 특성치 및 자원량

  • Choi, Jung-Hwa (Fisheries Resources Research Team, National Fisheries Research and Development Institute) ;
  • Chang, Dae-Soo (Fisheries Resources Research Team, National Fisheries Research and Development Institute) ;
  • Kim, Jung-Nyun (Fisheries Resources Research Team, National Fisheries Research and Development Institute)
  • 최정화 (국립수산과학원 자원연구팀) ;
  • 장대수 (국립수산과학원 자원연구팀) ;
  • 김정년 (국립수산과학원 자원연구팀)
  • Published : 2006.08.31
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Abstract

The ecological characteristics and stock biomass of the Shiba shrimp, Metapenaeus joyneri, in Korean waters were determined, using fishery data from the Ministry of Maritime Affairs and Fisheries (MOMAF) and available length frequency data. The instantaneous coefficient of total mortality (Z) of M. joyneri was estimated to be 4.191year, and the annual survival rate (S) was 0.015. The estimated instantaneous coefficient of fishing mortality (F) for recent years was calculated to be 1.94/year. The age at first capture of M. joyneri was 0.71 years. Based on these parameters, the annual biomass of the M. joyneri stock was estimated using a biomass-based cohort analysis and data on the annual catch in weight at age for 1993-2004 in Korean waters. During the study period, the biomass of the shrimp peaked in 1994 at about 9,082 metric tons. Subsequently, it decreased to 500 metric tons in 1998.

Keywords

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