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Ahmadi Riyanto
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INDONESIA
Jurnal Iktiologi Indonesia (Indonesian Journal of Ichthyology)
Published by Masyarakat Iktiologi Indonesia
ISSN : 16930339     EISSN : 25798634     DOI : https://doi.org/10.32491
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology
Aims and Scope Aims: Jurnal Iktiologi Indonesia (Indonesian Journal of Ichthyology) aims to publish original research results on fishes (pisces) in fresh, brackish and sea waters including biology, physiology, and ecology, and their application in the fields of fishing, aquaculture, fisheries management, and conservation. Scope: This journal publishes high-quality articles dedicated to all aspects Aquaculture, Fish biodiversity, Fisheries management, Fish diseases, Fishery biotecnology, Moleculer genetics, Fish health management, Fish biodiversity.
Arjuna Subject : Biokimia, Genetika dan Biologi Molekuler - Biokimia, Genetika dan Biologi Molekuler (Lain-Lain)
Articles 420 Documents
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KARAKTERISASI TIGA STRAIN IKAN GURAME (Osphronemus gouramy Lac.) BERDASARKAN METODE TRUSS MORFOMETRIKS [Characterization of three strains of giant gouramy [Osphronemus gouramy Lac.) based on truss morphometries method] Lies Setijaningsih; Otong Zenal Arifin; Rudhy Gustiano
Jurnal Iktiologi Indonesia Vol 7 No 1 (2007): Juni 2007
Publisher : Masyarakat Iktiologi Indonesia (Indonesian Ichthyological Society)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32491/jii.v7i1.220

Abstract

Objective of the study is to clarify morphometric characters of three giant gouramy strains based on the truss morphometric method. The highest index similarity within strain was in Bastar strain (87.0%) and the lowest was in Blue strain (73.7%). The highest index similarity between strains was between Blue Safire and Bastar strain (15.8%) and the lowest was between Bastar and Blue Safire (4.3%). The correlation values of gouramy characters (combined male and female) tend to close male characters. Five characters (B5, A3, A6, A2, Cl) enabled to be used as discriminators on gouramy.
STRATEGI KONSERVASI HABITAT UNTUK MEMPERTAHANKAN KEANEKARAGAMAN IKAN DI RAWA LEBAK SUNGAIRUNGAN, PALANGKARAYA, KALIMANTAN TENGAH [Habitat conservation strategy to maintain fish diversity in the Rungan River Floodplain, Palangkaraya, Central Kalimantan] Bambang Sulistiyarto; Dedi Soedharma; M. F. Rahardjo; Sumardjo Sumardjo
Jurnal Iktiologi Indonesia Vol 7 No 1 (2007): Juni 2007
Publisher : Masyarakat Iktiologi Indonesia (Indonesian Ichthyological Society)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32491/jii.v7i1.221

Abstract

The largest fraction of freshwater fish diversity is presented in floodplain ecosystem. Moreover, floodplain fisheries in Kalimantan have an important contribution to local community livelihoods. Floodplain ecosystems are faster to be damage and loss than other ecosystems. Consequently, conservation of fish habitat is urgently needed to maintain fish diversity. The objectives of this study were to give strategies of fish habitat conservation for maintaining fish diversity, based on biophysical and social analysis. Studies were carried out in Petuk Ketimpun District of Palangkaraya Municipality. Biophysical variables were studied by monthly samples taken from May 2005 to April 2006. These were carried out at three stations with different habitat type, includes forested swamp, opened swamp, and river. Social and cultural information collected by interviewing with fishers and local government agencies. A total of 4278 fishes were collected consisting of 50 species and 19 families. Forest swamps and river are habitat priorities to be conserved. The conservation of forest swamps is directed to maintain of the habitat structure, while the conservation of river is directed to maintain water quality and to maintain river as fish refuge site at low water season. Fishery regulation is priority used for maintaining fish diversity in opened swamps.
DISTRIBUSI DAN KOMPOSISI JENIS IKAN DEMERSAL YANG TERTANGKAP TRAWL PADA MUSIM BARAT DIPERAIRAN UTARA JAWA TENGAH [Fish distribution and composition demersal fish caught by trawl in west season in north waters of Central Java] Tri Ernawati
Jurnal Iktiologi Indonesia Vol 7 No 1 (2007): Juni 2007
Publisher : Masyarakat Iktiologi Indonesia (Indonesian Ichthyological Society)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32491/jii.v7i1.222

Abstract

Research on demersal fish resources using research vessel Bawal Putih was carried out during the West monsoon (December, 2005) in the northern waters of Central Java. Sampling was done by trawl net with swept - area method and was pulled by speed of 3 knots. The maximum time of towing trawl at every station was 1 hour. The stations were 30 in number with 20 - 50 m in depth. The catch rate distribution of demersal fish between 2.16 - 234.08 kg/hour and the average was 61.6 kg/hour. The fish composition consists of 37 families and 79 species. The dominant families were Leiognathidae (38.9 %), Synodontidae (10.75%), Nemipteridae (10.65%) and Mullidae (8.76%). While the dominant species were Leiognathus splendens (25.3%), Upeneus sulphureus (8.4%), Leiognathus decorus (7.07%), Nemipterus japonicus (6.7%) and Saurida longimanus (4.2%).
FAUNA IKAN AIR TAWAR DIPULAU BUTON PROVINSI SULAWESI TENGGARA [Freshwater ichthyofauna in Buton Island, Southeast Sulawesi] A. 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.v6i2.223

Abstract

As a relatively isolated part of Indonesia, Sulawesi has an interesting biogeography and a high proportion of endemic species. Freshwater and estuarine fish of Buton Island, in south eastern Sulawesi, was surveyed and collected in June 2003. A total of six sites were sampled, either by electrofishing or by seine netting. The survey tentatively identified 31 species from 22 genera within 12 families. Members of the Gobiidae and related families dominated the collections ielO species (32.3%). Some specimens that could not be identified using existing keys may be new to science. While hill stream communities included fish adapted to live in strong currents, the lower reaches of rivers contained species capable of surviving high water temperatures and low oxygen tensions. River estuaries had the highest species diversity and contained juveniles of many marine forms that use the estuary as a nursery area. In rivers running through intact rainforest, a few species were found to specialize on feeding on invertebrates that fall onto the water surface. Samples from these environments included the undescribed species of gobies (Gobiidae).
PENGARUH PERLAKUAN JENIS PAKAN YANG BERBEDA TERHADAP PERTUMBUHAN IKAN PELANGI Marosatherina ladigesi [Effect of Feeds Type on Growth of Rainbowfish, Marosatherina ladigesi] Triyanto Triyanto; Djamhuriyah S. Said
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.v6i2.224

Abstract

The research about effect of feeds type on fish have common done. However information about appropriate feeds type for the growth of Marosatherina ladigesi has been unknown well. The research was conducted in Laboratory of Research Center for Limnology-LIPI in June - August 2006. The research aimed to determine the effect of feed to growth and survival rate of M. ladigesi. This Research conducted by utilizing four different feeds type, namely Daphnia, Chironomus, Tubificidae, and pellet. The result showed that different kind of feeds type have an effect on growth and survival rate of M. ladigesi. Feed from Tubificidae showed highest growth of total length 1.19 cm (0,020 cm/day). While feed type from Chironomus showed highest growth of weight 0.47 g (0.008 g/day) and highest survival rate 100%.
JENIS-JENIS IKAN INTRODUKSI DI PERAIRAN TAWAR JAWA BARAT DAN BANTEN: CATATAN TENTANG TAKSONOMI DAN DISTRIBUSINYA [Introduced Fishes to Inland Waters in West Java and Banten: Some Notes on its Taxonomic and Distribution] Ike Rachmatika; G Wahyudewantoro
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.v6i2.225

Abstract

During survey of the fish diversity of the streams at the Gunung Halimun National Park, Gunung Ciremai National Park, Southern Kuningan regency and Garut regency, at least ten species of introduced fishes were found. They were Cyprinus carpio (Cyprinidae), Liposarcus pardalis (Loricariidae), Clarias gariepinus (Clariidae), Poecilia reticulata, P. latipinna, Xipophorus hellerii (Poeciliidae), Cichlasoma nigrofasciatum, Aequidens pulcher, Oreochromis niloticus, O. mossambicus (Cichlidae) and Trichogaster pectoralis (Belontiidae). In general, the populations of these species have established in the waters. The impact of these introduced fishes on the native species is discussed.
IKTIOFAUNA RAWA BANJIRAN SUNGAI KAMPAR KIRI [Ichthyofauna in Floodplain of Kampar Kiri River] Charles PH. Simanjuntak; M F. Rahardjo; Sutrisno Sukimin
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.v6i2.226

Abstract

The aim of study is to describe the richness of ichthyofauna of floodplain of Kampar Kiri River. Icthyofauna study was conducted from June to December 2006. Method that used was purposive sampling where many gears were used. A total of 86 species belonging to 21 families and 44 genera was found. Cyprinidae was dominant, comprising 35 species or 40.7%, followed by Silluridae comprising 11 species or 12.8%. The high number of species richness was recorded for the floodplain of Kampar Kiri River.
FAUNA IKAN DIPERAIRAN SEKITAR BUKIT LAWANG KAWASAN TAMAN NASIONAL GUNUNG LEUSER [The Fish Fauna of Bukit Lawang Waters Areas in Gunung Leuser National Park] Haryono Haryono
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.v6i2.227

Abstract

Gunung Leuser National Park lays areas North Sumatera and Nanggroe Aceh Darussalam Provinces. The study on fish fauna in this area was done especially at Bukit Lawang waters. The aims of the study were to describe fish diversity, status and its potency. There is 32 fish species were found that belongs to 26 genera and 15 families. Cyprinidae is dominant family: with 10 species. The potency is 11 consumed fish and 11 ornamental fish, and 9 species for both ornament and consumption.
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.
PERBEDAAN MORFOLOGIS POPULASI BOH A Botia macracantha ASAL SUMATERA DAN KALIMANTAN [Morphological differences among botia Botia macracantha populations originated from Sumatra and Kalimantan] Sudarto Sudarto; Laurent Pouyaud
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.v6i2.229

Abstract

There are two distinct morphological characters of Botia macracantha (Clown loach) originated from Sumatera and Kalimantan. It is assumed that those two populations caused difficulties in breeding program when the populations mixed up. To know the differences of those two populations at least 100 sampels were collected from Sumatra or 50 sampels of each location. Another location was West Kalimantan. Morfometric characters are measured among those populations and statistical analysis is implemented to know the differences among populations observed. The result showed that populations from Sumatra is differ morphometrically from Kalimantan.

Page 30 of 42 | Total Record : 420

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