Sex ratio and size at first maturity of razor clam Solen sp. in Pamekasan and Surabaya coastal area, East Java, Indonesia

1st International Conference on Fisheries and Marine Science

Trisyani, N.^1 ; Wijaya, N.I.^2 ; Yuniar, I.^1

Department of Fisheries, University of Hang Tuah, Surabaya, Indonesia^1

Department of Marine Science, University of Hang Tuah, Surabaya, Indonesia^2

关键词: Coastal area;    Fishery resources;    Indonesia;    Maturity stages;    Razor Clams;    Sex ratios;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/236/1/012025/pdf
DOI  :  10.1088/1755-1315/236/1/012025

来源: IOP

【 摘 要 】

Solen sp. is one species of Pelecypoda class that has commercial value. Size at first maturity is one of the reproductive aspects needed for the management of fishery resources. This study was aimed to estimate the sex ratio and the size at first maturity of Solen sp. Samples were collected from the coast of Pamekasan and Surabaya from October 2017 to September 2018. The sex ratios were analyzed using chi-quadrat-test while the size at first maturity was obtained from the first size of the third-gonadal-maturity stage. Sex ratio of male and female Solen sp. in the coast of Surabaya was 0.898: 1.049 and Pamekasan beach was 1.065: 0.928. In the coast of Pamekasan, male Solen sp. reached gonadal maturity stage at the size of 260 mm, and female at 263 mm, while in Surabaya the males reached gonadal maturity stage at the size of 570 mm and the female at 585 mm.