The relationship between concentration of clorophyll-a with skipjack (Katsuwonus pelamis, Linnaeus 1758) production at West Sumatera waters, Indonesia

3rd International Symposium on LAPAN-IPB Satellite For Food Security and Environmental Monitoring 2016

地球科学;轻工业;生态环境科学

Usman^1 ; Yulika Sari, T. Ersti^1 ; Syaifuddin^1 ; Audina^1

Department of Aquatic Resources Utilization, Faculty of Fisheries and Marine Science, Riau University, Indonesia^1

关键词: Chlorophyll a;    Chlorophyll-a concentration;    Dependent variables;    Indonesia;    Katsuwonus pelamis;    Log books;    Regression equation;    Skipjack tuna;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/54/1/012072/pdf
DOI  :  10.1088/1755-1315/54/1/012072

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

The regression and correlation technic was uses to evaluated the contribution of chlorophyll - A concentration on variation of longline skipjack tuna production. An analysis was performed by placing Chlorophyll - A as predictor and Skipjack (Katsuwonus pelamis, Linnaeus 1758) production as dependent variable, using Chlorophyll - A derived from NPP VIIRS, and CPUE derived from longline fisherman log books for the year of 2013. Chlorophyll - A distribution which derived from NPP VIIRS between 0.13-0.26 mg/m3 whereas maximum CPUE as much as 0,1875 kg/trip in April. The regression equation obtained was CPUE = -1.12 + 11.5 Chl-a. Correlation between chlorophyll - A and CPUE have moderate relationship (r=0.51). From regression equation for those variables showed that the variation of chlorophyll - A had affected about 26% on variation of CPUE, only.