BIOLOGI REPRODUKSI IKAN PELANGI MERAH {Glossolepis incisus, Weber 1907) DI DANAU SENTANI [Reproductive biology of red rainbowfish (Glossolepis incisus Weber 1907) in Sentani Lake]

Lisa Sofia Siby (Sekolah Tinggi Pertanian St. Thomas Aquinas, Jayapura)
M. F. Rahardjo (Departemen Manajemen Sumber Daya Perairan, FPIK, Institut Pertanian Bogor)
Djadja Subardja Sjafei (Masyarakat Iktiologi Indonesia)

Jurnal Iktiologi Indonesia (Indonesian Journal of Ichthyology)
Vol 9 No 1 (2009): Juni 2009

The aim of this study is to explain biology aspect of red rainbowfish that is reproductive biology [sex ratio, gonad maturity, fecundity, spawning season and length at first maturity (L50)]. This study was conducted in Sentani Lake during 5 months (December 2007-May 2008). Sex ratio was higher for female on January-February (1:3), gonad maturity and GSI was higher in station 1, 2, 3 and 6 at December. Fecundity ranges between 910-3122 eggs. Eggs diameter is 0,625-7,125 ^m and spawning pattern is partial spawner and iteroparous.