文章基本信息

标题：REPRODUCTION BIOLOGY EASTERN LITTLE TUNA Euthynnus affinis IN THE SUNDA STRAIT
其他标题：BIOLOGI REPRODUKSI IKAN TONGKOL Euthynnus affinis DI PERAIRAN SELAT SUNDA
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作者：Vera Ardelia ; Vera Ardelia ; Yon Vitner 等
期刊名称：E-Journal Ilmu dan Teknologi Kelautan Tropis
印刷版ISSN：2087-9423
电子版ISSN：2085-6695
出版年度：2016
卷号：8
期号：2
页码：689-700
DOI：10.29244/jitkt.v8i2.15835
语种：English
出版社：Bogor Agricultural University
摘要：Eastern little tuna is small pelagic fish that has high economic value. Fishing effort of the eastern little tuna for the last eight years have also exceeded the optimum level. To ensure the sustainability of the pelagic fish resources, it is necessary to perform the management efforts. This study was to observe reproductive Biology of the eastern little tuna, as one of the necessary information in the management of fishery resources. Fish -samples were collected from the catch of local fishermen in April-August 2015. Based on T test (α = 0.05), the eastern little tuna males and females showed positive allometric growth patterns. Average size of the first time caught fish for the female (308.37 mm) and male (280,63 mm) was smaller than that observed in those first time maturity gonads (ranging 407-408 mm for female and 438-440 mm for male). The eastern little tuna spawn gradually or partially (partial spawner), and have high reproductive potential with fecundity ranged 17,814-560,792 eggs (average fecundity: 109,807) in fish of 285-630 mm body length. The gonad maturity level of the eastern Little Tuna is dominated by Gonad maturity level I and II,(immature). The value of gonad maturity for the female level is about 0.0769-0.6879 and the male is 0.1913-0.3000.
其他摘要：Ikan tongkol adalah ikan pelagis kecil yang memiliki nilai ekonomis tinggi. Upaya penangkapan ikan tongkol selama delapan tahun terakhir juga telah melebihi batas optimum. Untuk menjamin kelestarian sumberdaya ikan pelagis tersebut, perlu dilakukan suatu
关键词：Banten; reproduction biology; eastern little tuna; Sunda Strait
其他关键词：Banten; biologi reproduksi; ikan tongkol; Selat Sunda