Growth and exploitation rate of Anadara gubernaculum (reeve, 1844) Arcidae Family in Asahan Aquatic of North Sumatra

International Conference on Agriculture, Environment, and Food Security

农业科学;生态环境科学

Fauzan, M.^1 ; Bakti, D.^1 ; Susetya, I.E.^1 ; Desrita^1

Department of Aquatic Resources Management, Faculty of Agriculture, Universitas Sumatera Utara, Medan

20155, Indonesia^1

关键词: Allometrics;    Fish stock;    Frequency distributions;    Growth parameters;    Growth patterns;    Market demand;    Mortality estimations;    Size groups;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/122/1/012105/pdf
DOI  :  10.1088/1755-1315/122/1/012105

来源: IOP

【 摘 要 】

High market demand for A. gubernaculum, tends to increase the greater catching capacity so that the decreasing population. The aims of this study were to determine the growth and rate of exploitation of A. gubernaculum in Asahan aquatic. It was conducted for 1 Month 14 Days from October to November 2016. Data analyzed by (Electronic Lenght Frequencys Assesment Tool) ELEFAN I method by using (FAO-ICLARM Fish Stock Assesment Tool) on FiSAT II software. Shells obtained 855 individual. The growth pattern of shells is negative allometric. The range of condition factor was 0.81 - 2.15. The frequency distribution of the A. gubernaculum ranges from 14 to 43 mm, the dominant size group was 20 - 22 mm. The prediction of growth parameter Von Bertalanfy showed that the asimptot length (L∞) is 43.05 mm, the growth coefficient (K) is 1.2/year and the theoretical life (t0) of the A. gubernaculum is -0.12. The total Mortality (Z) of Anadara gubernaculum was 2.121/year. Natural mortality estimation rate (M) was 1.9/year. The exploitation rate of Anadara gubernaculum is 0.1/year.