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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 6 Documents
 1 
Search results for , issue "Vol 7 No 1 (2007): Juni 2007" : 6 Documents clear
FAUNA IKAN EKOSISTEM HUTAN RAWA DISUMATERA SELATAN [Fish Fauna of Swampforest Ecosystem in South Sumatera] Syarifah Nurdawati; Dadjek Prasetyo
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.v7i1.217

Abstract

Research on fish fauna in some types of swamp forest was done during two seasons that are rainy season and dry season as a mean to describe fish species living in Cala Lake ecosystem. This research was done by specifying some stations that are Kutung River (I), Dua Besar River (II), Cala Lake (III), and Candi Floodplain (IV). Gathering of fish species by taking fisherman catches with not selective gear (empang, kilung and corong). At this research, it was found 75 fish species consisted of seven orders, 20 families, 45 genera, and 75 species; where 53 species were found at station I, 51 species at station II, 53 species at station HI, and 41 species at station IV. As many as 58 species fish seed found at swamp forest to find food (feeding ground), 31 fish species is doing spawn (spawning ground), and 14 fish larvae stay -in the swamp forest indicating a nursery ground.
KOMPOSISI IKAN PETEK (LEIOGNATHIDAE) DI PERAIRAN BARAT SUMATRA [Composition of pony fish (Leiognathidae) in west of Sumatra waters] Wedjatmiko Wedjatmiko
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.v7i1.218

Abstract

The research was conducted on August, 2005 and August, 2006 using RV. Bawal Putih. Result of this research shows that Pony fish (Leiognathidaej was the largest family catched 59.85 % (2005) and 49.74 % (2006). There was three genera of Leiognathidae catched in West of Sumatra waters namely Leiognathus (10 species), Secutor (2 species) and Gaza (1 species). The highest catch of the pony fish was a Leiognathus bindus 59.85% (2005) and 49.74% (2006), (by average size 8.0 - 8.5 cm (FL)). The largest size of pony fish in west of Sumatra waters was a Leiognathus fasciatus (with average size 18.0 cm (FL) and range size 13.0 - 20.5 cm). Vertically distribution of Leiognatidae was in the waters 41 - 50 m in depth, especially for Leiognathus bindus.
SUMBERDAYA IKAN CUCUT (HIIJ) YANG TERTANGKAP NELAYAN DI PERAIRAN L AUT JAWA [The shark resource caught by fishermen in Java Sea] Agustinus Anung Widodo; Mahiswara Mahiswara
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.v7i1.219

Abstract

Many of fishermen including in Java Sea made shark as fishing target species. Shark is sub group Elasmobranchii and group Cartilaginous. Comparing to the other fish species, information on shark in Indonesia is very lack. In order to identify regarding to the biological aspects on this species, a research was carried out in the year of 2003-2004. Data are got through enumerator and observer program. Sampling location is fish landing bases those covered Muara Angke fishing port (Jakarta), Kejawanan fishing port (Cirebon), Juwana fishing port (Pati) and Brondong fishing port. The kind of data covered shark species, size (TL), fecundity, sex ratio and stomach content. Result shows that there are 34 species of shark caught by fishermen in Java sea which is dominated by Carcharhinus dussumieri (24.74 %), C. melanopterus (8.26 %), Sphyrna lewini (7.26 %), C. falciformis (6.43%) and C.sorrah (6.37 %). The size (TL) of each species are C.dussumieri mostly about 80 cm, C.melanopterus mostly has size about 45 cm and 115 cm, Sphyrna lewini mostly about 190 cm, C falciformis mostly about 90 cm and C.sorrah mostly about 120 cm. As well known that shark is a real predator, but favourite food of shark in Java Sea was shrimp. Fecundity of shark in Java Sea generally was low.
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%).

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