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INDONESIA
Jurnal Perikanan Universitas Gadjah Mada
Published by Universitas Gadjah Mada
ISSN : 08536384     EISSN : 25025066     DOI : -
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Immunology & microbiology
Jurnal Perikanan Universitas Gadjah Mada are published to promote a critical review of the various investigative issues of interest in the field of fisheries between the researchers, academics, students and the general public, as a medium for communication, dissemination, and utilization of wider scientific activities.
Arjuna Subject : -
Articles 20 Documents
 1   2 
Search results for , issue "Vol 9, No 1 (2007)" : 20 Documents clear
Kelayakan Finansial Usaha Penangkapan Ikan di Pantai Trisik, Kecamatan Galur, Kabupaten Kulon Progo Sinung Rustijarno
Jurnal Perikanan Universitas Gadjah Mada Vol 9, No 1 (2007)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jfs.77

Abstract

The research was done from June to August 2004 by cencus to all fishermen. This study was conducted in Trisik Coast, Galur Subdistrict, Kulon Progo District.The purpose of this research was to obtain the financial analysis of fishing effort in this area. The results showed that the fishing in Trisisik coast was feasible indicated by the Net Present Value (NPV) have positive value (Rp 21.439.196,-), Net B/C rasio (1,85) and Internal Rate of Return (IRR) (16,43%).
Status Limnologis Situ Cilala Mengacu pada Kondisi Parameter Fisika, Kimia, dan Biologi Perairan Niken T.M. Pratiwi; Enan M. Adiwilaga; Johan Basmi; Majariana Krisanti; Oji Hadijah; Pieka Wulandari K.
Jurnal Perikanan Universitas Gadjah Mada Vol 9, No 1 (2007)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jfs.67

Abstract

The purpose of this research was to study the limnological status of Cilala reservoir, based on physical, chemical, and biological parameters. The observation comprised some morphometric of surface and vertical dimension, water quality measurements, plankton community structure, and primary productivity. Based on some morphometric condition, Cilala reservoir has a high potention of biological productivity, but the area of lake begins narrowing. The physical and chemical characteristic showed that Cilala reservoir was still in good condition. The condition of Total Suspended Solid (TSS) at inlet and the water debit of outlet showed that the waters has a relatively high potention of sedimentation that lead to a shallowing condition. There were found 95 genus of phytoplankton from seven classes (Bacillariophyceae, Chlorophyceae, Cyanophyceae, Chrysophyceae, Euglenophyceae, Pyrrophyceae, and Xanthophyceae). It was also found four major groups of zooplankton, i.e. Rotifera, Copepoda, Cladocera, and Protozoa. Although the primary productivity was relatively low, based on orthophosphate, chlorophyll-a, and Nygaard Index, the water was in mesotrophic-eutrophic status. As a whole, Cilala reservoir was still appropriate for fisheries activities.
Pengaruh Hormon LHRH-A dan 17α-MT Terhadap Respon Imun Non-Spesifik Induk Ikan Kerapu Lumpur, Epinephelus coioides Fris Johnny; Agus Priyono; Des Roza
Jurnal Perikanan Universitas Gadjah Mada Vol 9, No 1 (2007)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jfs.61

Abstract

The aim of this research was to find out the influence of the chronic hormone LHRH-a and 17α-MT on non-specific immune response of mangrove grouper, Epinephelus coioides broodstock. Female and male fish weight used in this experiment ranged 4.7-10.4 kg and 10.4-17.8 kg, respectively. The female fish were treated with hormone 17α-MT at a dosage of 50 µg/kg body weight, while the male fish treated with hormone LHRH-a at dosages of 50 and 100 µg/kg body weight. Fish were kept separately in two concrete tanks contained 100 m³ sea water, and 2 meters depth. The stocking density was 15 fishes/tank with male and female ratio 1 : 2. The blood samples were colected before treatment by hormone and every two months, subsequently. The non-specific immune response parameters evaluated were phagocytic activity (PA), phagocytic index (PI), and lysozyme activity (LA). Results indicated that chronic hormone could increase non-specific immune response especially phagocytic activity up to 17.3%.
Pengaruh Konsentrasi Gelatin Ikan Sebagai Bahan Pengikat Terhadap Kualitas dan Penerimaan Sirup Diah Lestari Ayudiarti; Suryanti Suryanti; Tazwir Tazwir; Rosmawaty Paranginangin
Jurnal Perikanan Universitas Gadjah Mada Vol 9, No 1 (2007)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jfs.72

Abstract

The purpose of this research was to observe the effect of fish gelatin compared to commercial gelatin as a binder on the quality of syrup. The concentrations of gelatin added to syrup were 4, 6, 8 and 10%. The moisture content, ash content, protein content, viscosity, and microbiology test of final products were analyzed. Meanwhile, the organoleptic test was observed only for the syrup added with fish gelatin. The result showed that gelatin concentration significantly affected the viscocity of syrup. Microbiology test showed that there were no mold in this product and Escherichia coli densities were less than 3 MPN /ml while TPCs were 2,0x103 CFU/g. The syrup with 8% fish gelatine was mostly preferred by the panelists because of its color and viscosity. Moisture content, ash content, protein content, and viscosity of this syrup were 38.67%, 0,12%, 11.13%, and 122,60 cPs, respectively.
Pendugaan Mutu Genetik Induk Ikan Patin Siam (Pangasius hypophthalmus) dari Beberapa Sentra Produksi Benih Berdasarkan Keragaan Anakannya Didik Ariyanto; Bambang Gunadi; Sularto Sularto
Jurnal Perikanan Universitas Gadjah Mada Vol 9, No 1 (2007)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jfs.63

Abstract

The purpose of this research was to estimate the genetic quality of siamese catfish (Pangasius hypophthalmus) from various seed production centres.The broodstocks genetic quality were estimated based on their progeny performances.The result showed that the population growth rates, individually average weight, FCR, survival rate and productivity of seeds from Central Java (Ungaran), West Java (Sukamandi and Sukabumi) and Jakarta were 6.89, 6.08, 5.61 and 5.37 g/day; 47.08, 39.64, 36.80 and 35.51 g/individually fish; 0.82, 0.87, 0.94 and 1.00; 76.80, 86.77, 86.43 and 85.66%; 366.99, 343.95, 318.02 and 304.21 kg/10.000 fishes/8 weeks, respectively.
Kondisi Terumbu Karang di Kepulauan Rajaampat, Kabupaten Sorong Nurul Dhewani Mirah Sjafrie; Giyanto Giyanto
Jurnal Perikanan Universitas Gadjah Mada Vol 9, No 1 (2007)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jfs.68

Abstract

The study of coral reefs in Rajaampat archipelago, district of Sorong, was carried out in September-October 2001, located at Boni Islands, Ayu Islands and Batang Pele Islands. The aims of this study were to know the percentage of live coral cover, coral diversity and species numbers of coral reefs in this area. Observations on coral reefs were conducted by applying the Rapid Reef Resource Inventory (RRI) and Line Intercept Transect (LIT). Results of Rapid Reef Resources Inventory (RRI) technique showed that the averages of live coral cover on the reef top and reef edge were 6.14 and 15.39% in Boni island (East Waigeo); 6.28 and 24.67% in Ayu island; 25.36 and 23.81% in Batang Pele Islands, respectively. Result of Line Intercept Transect (LIT) technique showed that the percentages of live coral cover were 35.02% in Boni Island, 51.07% in Ayu Island, and 40.86% in Batang Pele Islands. The value of evenness indexs were 0.872-0.934 in Batang Pele Islands; 0.758-0.861 in Ayu Islands; 0.805 in Boni Islands. The total number of species in three sites was 293 species, with the total numbers of spesies in each station were 153 species in Boni islands, 277 species in Ayu islands, and 205 species in Batang Pele Islands. The condition of coral reef at Ayu islands was categorized as good condition, while both of Batang Pele Islands and Boni Islands were categorized as moderate condition.
Survailen Aktif Infectious Myonecrosis Virus (Imnv) pada Udang Vannamei (Litopenaeus vannamei) yang Dibudidayakan di Jawa Timur Dan Bali Yani Lestari Nur’aini; Bambang Hanggono; Slamet Subyakto; Gemi Triastutik
Jurnal Perikanan Universitas Gadjah Mada Vol 9, No 1 (2007)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jfs.60

Abstract

An active surveillance of infectious myonecrosis virus (IMNV) in pond-cultured white shrimp (Litopenaeus vannamei) was conducted to determine the status of this disease. Samples of white shrimp (L. vannamei) were taken from ponds in East Java and Bali using proportional sampling. The sample was subjected to IMNV detection with Polymerase Chain Reaction (PCR) method and confirmed with histopathology. Results of this study showed that IMNV was found in shrimp samples from Kapongan, Situbondo district with the prevalence of 11,1%. Meanwhile, samples from other districts in East Java and Bali had no IMNV disease during this study. There is no treatment for viral disease in shrimp culture. Therefore, control of movement of live shrimp and application of biosecurity-area based should be more implemented among the shrimp culture area.
Infeksi Anisakis sp. pada Layur (Trichiurus sp. ) di Pantai Selatan Kabupaten Purworejo Eko Setyobudi; Senny Helmiati; Soeparno Soeparno
Jurnal Perikanan Universitas Gadjah Mada Vol 9, No 1 (2007)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jfs.73

Abstract

The aims of this research were to know the prevalency, intensity and distribution of Anisakis sp. which infected hairtail (Trichiurus sp.) in the southern coast of Purworejo Regency. Samples were collected from fish landing-places in Jatimalang and Keburuhan, Purworejo Regency. Totally 276 fish were collected as samples during 4 months (September-December 2005). Every sampel was measured in total length and body weight. The examination of Anisakis sp. were conducted on body surface, body cavity, gut, liver, gonad, and muscle. Results of the research indicated that the Anisakis sp. infected various size of hairtail, with prevalency 62,68% and mean intensity of infection 3,30 individual/fish. Infected organs were body cavities (peritoneum), guts, gonads, livers, muscles, gills and pneumatocysts.
Pengaruh Kandungan Protein Pakan terhadap Pertumbuhan dan Efisiensi Pakan Benih Ikan Kakap Merah (Lutjanus argentimaculatus) Nyoman Adiasmara Giri; Ketut Suwirya; Ayu Indriani Pithasari; Muhammad Marzuqi
Jurnal Perikanan Universitas Gadjah Mada Vol 9, No 1 (2007)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jfs.64

Abstract

The experiment was aimed to know dietary protein requirement and the effect of dietary protein levels on juvenile red snapper (Lutjanus argentimaculatus). The experiment was conducted in 18 polycarbonate tanks, with each 30 liter volume. All tanks were equipped with aeration and flow through water system to maintain good water quality. Hatchery produced juvenile red snapper of 9.4 ± 0.1 g average body weight and total length of 7.7 ± 0.4 cm was randomly selected and 10 fish was stocked in each tank. Fish were fed with experimental diets contained different levels of protein, i.e., 32, 36, 40, 44, 48, and 52%.The experiment used completely random design (CRD) in triplicates. Results showed that dietary protein levels influenced growth, feed efficiency, feed intake, body protein content, and protein retention of juvenile red snapper (p<0.05). The highest weight gain (263.7%) was found on fish fed diet with 40% protein. Based on the growth and feed efficiency data, it was concluded that dietary protein requirement for juvenile red snapper was 40%.
Distribusi Plankton di Waduk Kedungombo Krismono Krismono; Yayuk Sugianti
Jurnal Perikanan Universitas Gadjah Mada Vol 9, No 1 (2007)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jfs.69

Abstract

The aim of this research was to know plankton distribution in Kedungombo reservoir. The research was conducted at three inlet station, (1) inlet from Kemukus mountain, (2) inlet from Kemusuk and (3) inlet from DAM in transition season (May and September, 2002), rainy season (November, 2002) and dry season (July, 2002). The result showed that the abundance of plankton organism was the highest at July (dry season) when the N:P ratio was highest.

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