Stock Analysis of Metapenaeus affinis (H.Milne Edwards, 1837) on the North Coast of Central Java, Indonesia

3rd International Conference on Tropical and Coastal Region Eco Development 2017

地球科学;生态环境科学

Saputra, Suradi Wijaya^1 ; Solichin, Anhar^1 ; Taufani, Wiwiet Teguh^1

Aquatic Resource Department, Faculty of Fisheries and Marine Science, Diponegoro University, Jl. Prof. H.Soedarto, SH, Tembalang, Semarang

50275, Indonesia^1

关键词: Direct observations;    Field research;    M.affinis;    North Coast;    Result analysis;    Stock analysis;    Survey methods;    Total length;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/116/1/012004/pdf
DOI  :  10.1088/1755-1315/116/1/012004

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

This research aims at studying the length of first capture (Lc), length of sexual mature (Lm), and the stock analysis of Metapenaeus affinis in the North coast of Central Java, Indonesia. The field research activities were conducted from May 2016 to April 2017 using survey method and direct observations on the catch area of fishing units. The results showed that total length of the first capture for the male shrimp is 76,4 mm and 63 mm for females. The total length of first sexual mature is 116 mm. Y'/R result analysis on male shrimp shows 0,595 maximum exploitation rate (Emax), the rate of exploitation at E0,1is 0,521 and the rate of exploitation at E0.5is 0,352. While the female shrimp obtained is Emax= 0.637, E0.1= 0.562 and E0.50= 0,373. To increase the production and to preserve shrimp resources, it is ideal if Lc= Lm, i.e. at a total length of 116 mm. In conclusion, the increase in length of first captured will increase Y / R 'and B / R'