Estimation of Population Ecological Characteristics of Small Yellow Croaker, Pseudosciaena polyactis off Korea OTHER

Title
Estimation of Population Ecological Characteristics of Small Yellow Croaker, Pseudosciaena polyactis off Korea
Alternative Title
한국근해 참조기의 자원생태학적 특성치 추정
Author(s)
장창익; 김용문; 유신재; 박차수; 김수암; 김종관; 윤성봉
Publication Year
1991-01
Abstract
This paper deals with the estimation of population ecological parameters, including growth parameters, survival rates, instantaneous coefficient of natural mortality and age at first capture, of the small yellow-croaker, Pseudosciaena Polyactis in Korean waters, which determine fluctuations in stock abundance. For describing the growth of the small yellow croaker, von Bertalanffy growth equation was recommended for the purpose of stock assessment, although the Gompertz model yielded the closest fit. The survival rate (S) of the croaker was estimated to be 0.219 (variance=0.0000262), and the instantaneous coefficient of natural mortality (M) was 0.4year−1. From the estimates of S and M, the instantaneous coefficient of fishing mortality (F) was calculated to be 1.11year−1 implying an impact from fishing three times that of natural mortality. Finally, the age at first capture (tc) was stimated to be 0.602.
ISSN
0374-8111
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/6470
Bibliographic Citation
한국수산과학회지, v.25, no.1, pp.29 - 36, 1991
Publisher
한국수산과학회
Type
Article
Language
Korean
Publisher
한국수산과학회
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