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Judul: Beberapa Aspek Biologi Ikan Layang Deles (Decapterus macrosoma) di Perairan Banda Neira, Maluku
Penulis: Budiono Senen, Sulistiono, & Ismudi Muchsin  || email:
Jurnal: Prosiding PERMAMA 2011 Vol. 1 no. 1 - hal. 52-60 Tahun 2011  [ Prosiding ]
Keywords:  gonado maturity, gonadosomatic index, sex ratio
Abstract: Shortfin Scad (Decapterus macrosoma) is one of the fish resource found in Banda Neira waters, which at the moment is being commercially exploited by mini purse seine. This research was carried out from February to August 2010 to investigate growth and reproduction. Method used in this research was descriptive analysis. Samples were randomly taken once a week for as many as 50-100 individual of fish (N = 1937, male = 979, female = 958). The result obtained from this study shows that sex ratio of the fish was of 1:2. The total body length ranged between 75 and 315 mm. In general, the fish is spawned between February and March. The size of the first male and female mature gonad was 250 mm total body length. The highest gonad somatic index was 2,19% on February and the lowest one was 1,7% on June.
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