Indonesian Aquaculture Journal
Vol 1, No 2 (2006): (December 2006)

Observation on gonad maturation of the first generation (F1) of humpback grouper, Cromileptes altivelis

Tridjoko Tridjoko (RResearch Institute for Mariculture, Gondol)
Eri Setiadi (Research Institute for Freshwater Aquaculture, Bogor)
Suko Ismi (Research Institute for Mariculture, Gondol)
Fris Johnny (RResearch Institute for Mariculture, Gondol)



Article Info

Publish Date
31 Dec 2006

Abstract

The purpose of this experiment was to know gonad maturation and spawning frequency of the first generation in humpback grouper, Cromileptes altivelis. This experiment had two groups of feed types (A and B). Both groups were put in circular concrete tanks with water volume of 75 m3 each. Each tank was stocked 40 fishes with body weight of 500—1,000 g/fish and total length of 28—38 cm. Group (A) was fed with trash fish, squid, and vitamin mix, while group (B) was fed with artificial diet. Both groups were fed once a day, in the morning. The water was exchange continuously, of 300%—500% per day. The result showed the fish spawn after 31 months rearing. During the experiment, the range of water temperature and salinity were 28.4°C—31.7°C and 30.2—34.4 ppt, respectively.

Copyrights © 2006






Journal Info

Abbrev

iaj

Publisher

Subject

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology

Description

Indonesian Aquaculture Journal is a peer-reviewed and open access journal based in Indonesia that globally/internationally accepts and publishes scientific articles in the field of aquaculture. The journal is hosted and managed by the Center for Fisheries Research, Indonesian Ministry of Marine ...