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All Journal Jurnal Iktiologi Indonesia (Indonesian Journal of Ichthyology)
Agus H. Tjakrawidjaja
Pusat Penelitian Biologi - LIPI
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology

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DIMORFISME SEKSUAL DAN NISBAH KELAMIN IKAN ARWANA {Scleropages spp.) [Sexual dimorphism and sex ratio and of asian arwana (Scleropages spp.)] Agus H. Tjakrawidjaja
Jurnal Iktiologi Indonesia Vol 6 No 2 (2006): Desember 2006
Publisher : Masyarakat Iktiologi Indonesia (Indonesian Ichthyological Society)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32491/jii.v6i2.228

Abstract

Preliminary study of biological reproduction aspects of Asian Arwana (S. jardinii and S. formosus) particularly sexual-dimorphism and sex-ratio of gender is very important as a base for captivity breeding. Up to the present, it is difficult to identify the sex identity of these Asian Arwanas that lead the difficulties in making sex-ratio description. The relible sex-ratio in captive breeding would increase the production. The result of this research would be useful for reference in the identification of the gender of Asian Arwanas.
PERTUMBUHAN IKAN ARWANA IRIAN (Scleropages jardinii Saville-Kent) DI AKUARIUM [Growth of Bonytongue Fish {Scleropages jardinii Saville-Kent) in Aquarium] Agus H. Tjakrawidjaja
Jurnal Iktiologi Indonesia Vol 6 No 1 (2006): Juni 2006
Publisher : Masyarakat Iktiologi Indonesia (Indonesian Ichthyological Society)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32491/jii.v6i1.234

Abstract

The aim of this research was to know growth in various life stages of Scleropagus jardinii Saville-Kent 1892 during domestication particularly the ranching system. Growth, food conversion, survival rate and water qualities were determined for each life stage. The result showed that each life stage is characterized by different growth. Highest food conversion was showed by adult followed by adolescent and juvenile have lowest amount of food conversion. Each life stage showed 100% for survival rate. Water quality in this experiment was adequate to support growth in fish.
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