文章基本信息

标题：Population dynamic of Big Eye Scad (Selar crumenophthalmus Bloch, 1793) in Kwandang Waters-Sulawesi Sea
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作者：Umi Chodrijah ; Ria Faizah ; Tirtadanu 等
期刊名称：E3S Web of Conferences
印刷版ISSN：2267-1242
电子版ISSN：2267-1242
出版年度：2020
卷号：153
页码：1-8
DOI：10.1051/e3sconf/202015301005
出版社：EDP Sciences
摘要：Big eye scad (Selar crumenophthalmus) is one of important small pelagic fish which is exploited in Kwandang waters-Sulawesi Sea. The exploitation of this species has been increasing every year. This research was carried out to study the growth, mortality and exploitation of bigeye scad in the Kwandang waters during January-November 2016. The von Bertalanffy growth equation was derived as Lt = 25.95(1 - e 1,01(t+-0.16374)) with length between 14.9 -26.4 cm FL (average length 18,64 cm). The size at first capture (Lc) was estimated as 18.69 cm. The total, natural and fishing mortality rates were assessed as 4.28, 1.90 and 2.38 year−1, respectively. The exploitation rate (E) of 0.56 per year indicates that the degree of harvesting leads to a more capture condition.. The management that must be applied is to reduce fishing efforts to 12% of the current situation and to consider temporarily closing fishing activities (closing season).
其他摘要：Big eye scad ( Selar crumenophthalmus ) is one of important small pelagic fish which is exploited in Kwandang waters-Sulawesi Sea. The exploitation of this species has been increasing every year. This research was carried out to study the growth, mortality and exploitation of bigeye scad in the Kwandang waters during January-November 2016. The von Bertalanffy growth equation was derived as Lt = 25.95(1 - e ^{1,01(t+-0.16374)}) with length between 14.9 -26.4 cm FL (average length 18,64 cm). The size at first capture (Lc) was estimated as 18.69 cm. The total, natural and fishing mortality rates were assessed as 4.28, 1.90 and 2.38 year−1, respectively. The exploitation rate (E) of 0.56 per year indicates that the degree of harvesting leads to a more capture condition.. The management that must be applied is to reduce fishing efforts to 12% of the current situation and to consider temporarily closing fishing activities (closing season).