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All Journal Jurnal Iktiologi Indonesia (Indonesian Journal of Ichthyology) Jurnal Natural
M. F. Rahardjo
Fakultas Perikanan dan Ilmu Kelautan, IPB
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Mathematics Physics

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KEBIASAAN MAKANAN I KAN LEMURU {Sardinella lemuru) DI PERAIRAN MUNCAR, BANYUWANGI [Food Habits of Threadfm Bream, Sardinella lemuru in Muncar, Banyuwangi] Septalina Pradini; M. F. Rahardjo; R. Kaswadji
Jurnal Iktiologi Indonesia Vol 1 No 1 (2001): Juni 2001
Publisher : Masyarakat Iktiologi Indonesia (Indonesian Ichthyological Society)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32491/jii.v1i1.162

Abstract

300 of threadfm bream were caught from three groups. The threadfin bream is a phytoplankton feeder, particularly on Bacillariophyceae, The main food is change and depend on the size of the groups.ABSTRAKJumlah ikan yang tertangkap sebanyak 300 ekor yang terdiri atas tiga kelompok, yaitu protolan, lemuru dan lemuru kering Ikan lemuru termasuk kelompok pemakan fitoplankton terutama Bacillariphyceae. Jenis makanan utama berubah dengan perubahan kelompok ukuran.
HABITAT IKAN PELANGI ARFAK (Melanotaenia arfakensis ALLEN) BERDASARKAN TAHAP PERKEMBANGAN DI SUNGAI NIMBAI DAN SUNGAI AIMASI, MANOKWARI Emmanuel Manangkalangi; M. F. Rahardjo; Djadja S. Sjafei
Jurnal Natural Vol. 8 No. 1 (2009): Jurnal Natural
Publisher : FMIPA Universitas Papua

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Abstract

The habitat ontogeny of arfak rainbowfish (Melanotaenia arfakensis Allen) in Nimbai and Aimasi streams, Prafi river system were studied from June to December 2007. Sampling was carried out monthly in four different habitat types using hand net. Slow littoral and medium littoral are two habitat types which characterized by slowly water velocity, availability of submerged vegetation and warmer temperature, however the run and pool areas have higher water velocity and dissolve oxygen. The former habitats are essential for all developed stages, i.e. feeding, spawning and nursing of this species. On the other hand, the later habitat types particularly were only for young and adult fish, due to their swimming abilities as well as maximize of oxygen uptake. In order to maintain the population of this species, conservation is needed to all of their natural habitats for continuing their life cycles.
Co-Authors Djadja S. Sjafei Emmanuel Manangkalangi R. Kaswadji Septalina Pradini