Article Per Year (5 Year)
p-Index From 2020 - 2025
0
P-Index
This Author published in this journals
All Journal Jurnal Iktiologi Indonesia (Indonesian Journal of Ichthyology)
M. F. Rahardjo
Departemen Manajemen Sumberdaya Perairan, FPIK-Institut Pertanian Bogor
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
MAKANAN IKAN JAPUH, Dussumieria acuta Valenciennes, 1847 (FAMILI: CLUPEIDAE) DI PERAIRAN TELUK KENDARI [Food habit of rainbow sardine, Dussumieria acuta Valenciennes, 1847 (Family: Clupeidae) in Kendari Bay] Asriyana Asriyana; M. F. Rahardjo; E. S. Kartamihardja; D. F. Lumban Batu
Jurnal Iktiologi Indonesia Vol 10 No 1 (2010): Juni 2010
Publisher : Masyarakat Iktiologi Indonesia (Indonesian Ichthyological Society)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32491/jii.v10i1.182

Abstract

Research on ontogenetic dietary variation rainbow sardine relating to body size of fish with time was carried out from August 2009 to January 2010 in Kendari Bay, Southeast Sulawesi. This research aims to describe ecological role of rainbow sardine in Kendari Bay. Fish collection was done using experimental gillnets (with different mesh sizes %, 1, 1%, and 1% inch) and scopednet (0 1 meter and mesh size 0.04 inch). A total of 136 individual fish were caught with range from 0.6 to 15.7 cm in length. Food analysis was determined by using Index of Preponderance. Result of the analysis indicates rainbow sardine is planktivora, which important diet is Bacillariophyceae. The male and females of fish did not have ontogenetic dietary (main food) shift and was not ontogenetic dietary shift relating to body size of fish. The diet of the fish every months was dominated by Bacillariophyceae.
PERKEMBANGAN KEMATANGAN GONAD DAN TIPE PEMIJAHAN IKAN SELAIS (Ompok hypophthalmus) DI RAWA BANJIRAN SUNGAI KAMPAR KIRI, RIAU [Development of gonad maturity and spawning pattern of Ompok hypophthalmus in floodplain of Kampar Kiri River, Riau] Djadja Subardja Sjafei; Charles P.H. Simanjuntak; M. F. Rahardjo
Jurnal Iktiologi Indonesia Vol 8 No 2 (2008): Desember 2008
Publisher : Masyarakat Iktiologi Indonesia (Indonesian Ichthyological Society)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32491/jii.v8i2.292

Abstract

The main objective of the study was to determine gonad maturity development and spawning pattern of O. hypophthalmus in floodplain of Kampar Kiri River. Samples were collected from June to December 2006 on a monthly basis. Biological samples were collected from a total of 474 O. hypophthalmus of which 249. females and 224 males were confirmed by macroscopic and histological analysis. Five gonad maturity stages were described based on the macroscopic and histological analysis. The dynamics of oocyte development of O. hypophthalmus, indicated a synchronism of maturation. Oocyte diameter distribution suggested that this species could be grouped as total spawner and iteroparous species.
Co-Authors Asriyana Asriyana Charles Parningotan Haratua Simanjuntak D. F. Lumban Batu Djadja Subardja Sjafei E. S. Kartamihardja