Abundance and Growth Parameter of Mangrove Crab (Scylla serrata) in Estuary Water of Karang Gading, District Deli Serdang

4th International Conference on Biological Sciences and Biotechnology

Mulya, Miswar Budi^1 ; Harahap, Zulham Apandy^2

Department of Biology, Faculty of Mathematics and Natural Sciences, Universitas Sumatera Utara, Medan, Indonesia^1

Department of Water Resources Management, Faculty of Agriculture, Universitas Sumatera Utara, Medan, Indonesia^2

关键词: Assesment;    Carapace widths;    Distribution patterns;    Fish stock;    Frequency distributions;    Growth parameters;    Sampling method;    Scylla serrata;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/305/1/012034/pdf
DOI  :  10.1088/1755-1315/305/1/012034

来源: IOP

【 摘 要 】

Research about the abundance and growth parameter of mangrove crab Scylla serrata in the estuary water of Karang Gading, District Deli Serdang has been done. The aims of this research are to analyze the abundance, frequency distribution of wide carapace, and growth parameter of mangrove crab. This research use purposive sampling methods. Sampling of mangrove crab use bubu, and data analysis use the equation according to Bengen and Fish Stock Assesment Tool (FISAT II). The study obtained 146 individu of male crabs and 192 individu of female crabs. The abundance of male mangrove crabs is 88 ind m3-1 and female crabs 116 ind m3-1 . The highest value of mangrove crab abundance was found at station 4 of 68 ind m3-1 consisting of 17 male crabs and 51 female crabs, and the lowest in station 1 was 37 ind m3-1 consisting of 23 male crabs and 14 female crabs. Distribution of mud crab is included in the group distribution pattern. The male crabs takes 4 month to reach maximum carapace width, and female crab takes 5 month.