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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 465 Documents
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SEBARAN DAN KELIMPAHAN MAKROZOOBENTOS DI TELUK KUPANG, NUSA TENGGARA TIMUR A. M. Pirzan; Utojo Utojo
Jurnal Perikanan Universitas Gadjah Mada Vol 10, No 2 (2008)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jfs.8896

Abstract

The objectives of this research were to find out the distribution and abundance of macrozoobenthos in Kupang Bay and to evaluate the suitability of this water for mariculture activity in the future based on physical and chemical water properties. Samples were collected from 10 stations along shoreline of the bay. Water samples were collected by cammerer water sampler, while benthic organisms were collected by ekman dradge. Samples were transferred to laboratory to identify and analyze. The results showed that the diversity index of the macrozoobenthos was moderately stable, and there were 4 to 10 species found in each station of Kupang Bay. The species dominancy was ranged from 28-82%, and the most dominant was Nassarius pullus. The water quality indicated that the study site was suitable for mariculture activities. It leads to suggestion that for the seaweed and floating net cage culture should be located in the mouth of the bay, while for pearl culture should be located along channel between Semau and Timor Islands. 
STATUS STOK GENUS Rastrelliger spp. SEBAGAI DASAR PENGELOLAAN PERIKANAN (STUDI KASUS PERAIRAN SELAT SUNDA) Wulandari Sarasati; Mennofatria Boer; Sulistiono Sulistiono
Jurnal Perikanan Universitas Gadjah Mada Vol 18, No 2 (2016)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jfs.12424

Abstract

The Rastrelliger spp. is one of the important commodities of the Sunda Strait. This research aimsto analyze the stock status of Rastrelliger spp. Including R. faughni, R. kanagurta and R. brachysoma in Sunda Strait that landed at the Fishery Harbor (PPP) Labuan, Banten. The sampling was conducted in April-August 2015. The data was collected using Random stratified sampling based on the fish size, small, medium and large. The length of the sample was measured and classified into male and female. The data were analyzed using FISAT II ELEFAN I software to present the stock with growth, recruitment, surplus production model, and mortality and rate of exploitation parameters. The results show that R. faughni has L∞ values for females and males respectively of 264.00 mm and 288.69 mm, 293.09 mm and 330.24 mm R. kanagurta and R. brachysoma 272.04 mm and 286.42. Growth Performs Index (GPI) on R. faughni of 4.2758, R. kanagurta of 4.1673, and on R. brachysoma of 4.2076. The growth coefficient of female and male R. faughni was 0.22 and 0.16, R. kanagurta of 0.24 and 0.10, and R. brachysoma 0.20 and 0.13. The level of recruitment of each varies but overall undergoes two peaks during the recruitment period. Maximum Sustainable Yield (MSY) for the Rastrelliger spp. 1,919.02 tons and FMSY (Effort MSY) for 16,766 trips. Furthermore, the mortality rate of arrest (F) R. faughni amounted to 14.53, R. kanagurta 9.43, and R. brachysoma 1.74. The estimation of stock status has never been detached from the exploitation rate. The rate of exploitation for R. faughni, and that is equal to 0.98, R. kanagurta of 0.98, and R. brachysoma 0.85. Judging from the rate of exploitation can be expected the three fish of the Rastrelliger spp. In the Sunda Strait has been over exploited because it has exceeded the limits of optimum exploitation rate.
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.
PENGARUH PEMBERIAN SLUDGE DALAM RANSUM PAKAN TERHADAP LAJU PERTUMBUHAN BENIH IKAN NILA GIFT (Oreochromis sp.) Rustidja Rustidja
Jurnal Perikanan Universitas Gadjah Mada Vol 5, No 1 (2003)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jfs.8977

Abstract

The aim of the study was to know the effect of sludge as the waste of biogas in the feed ration on the growth of nile(Oreochromis sp.) fingerling.The design experiment used in this experiment was Completely Randomized Design with 4 tretments namely 10; 20; 30; and 40% of sludge ration. A commercial fish feed used as the control. The treatments were done in triplicate.The result showed that the additions of sludge in each ration did not affect all growth parameter observed, suggesting sludge might be added to the ration up to 40%. The Survival Rates, Specific Growth Rates, Feed Conversion Ratios (FCR), Net Protein Utilization (NPU), EneryConvertion Efficiency (ECE), Protein Efficiency Ratios (PER) ranged from 94,8 to 94,27, 4,77 to 5,98% BW/day, 0,71 to 1,18, 39,3 to 58,97%, 26,45 to 41,49%, and 2,71 to 4,5, respectivey.
Pengaruh Salinitas dan Kondisi Fertilisasi terhadap Persentase Larva Normal pada Kerang Bakau Polymesoda erosa Solander (1786) Ricky Gimin
Jurnal Perikanan Universitas Gadjah Mada Vol 8, No 2 (2006)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jfs.139

Abstract

The mangrove clam (Polymesoda erosa) is edible bivalve and one of potential candidate for aquaculture. Availability of its hatchery technique is important for development of its aquaculture. The objective of this study was to determine the optimum salinity and fertilization factors for the production of normal larvae. Fertilized eggs at density of 10 eggs/ml were incubated under seven salinities, i.e., 0, 5, 10, 15, 20, 25 and 30 ppt at room temperature (26±1°C). The highest percentage of 48 hr normal D-larvae occurred at 20 ppt. The percentage dropped significantly if salinity was below 10 ppt or more than 25 ppt. In other experiments to develop fertilization protocols for this species, the effects of spermatozoa-to-ovocyte ratio, age of gametes, and stocking density of eggs were assessed individually to determine the optimum ratio, age and density for the highest percentage of normal D-larvae. Ten sperms-to-egg ratios, i.e., 5, 10, 50, 102, 5x102, 103, 5x103, 104, 5x104 and 105 at density of 10 eggs/ml, were tested. The highest percentage of normal D-larvae occurred within the range of 5x102 to 5x103 sperms per egg. Significantly low percentages were obtained at treatments below 100 or more than 104 sperms per egg. In the experiment of gamete age, sperms and eggs were mixed for fertilization at different times, i.e., 30 minutes, 45 minutes, 60 minutes, 120 minutes and 180 minutes, after spawning. Freshly spawned sperms and eggs of less than 60 minutes gave the best percentage. When the fertilized eggs were incubated at different densities, i.e., 10, 20, 30, 40, 50, 100 and 200 eggs/ml, the densities up to 50 eggs/ml gave maximum results.
INDEK BIOTIK FAMILI SEBAGAI INDIKATOR KUALITAS AIR SUNGAI GAJAHWONG YOGYAKARTA Djumanto Djumanto; Namastra Probosunu; Rudy Ifriansyah
Jurnal Perikanan Universitas Gadjah Mada Vol 15, No 1 (2013)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jfs.9095

Abstract

The purpose of this research was to determine water quality level of Gajahwong River, Yogyakarta with the present of macroinvertebrate as biologycal indicators. The sampling was conducted in the Gajahwong River fl ow from Pakem subdistrict in Sleman regency to Pleret subdistrict in Bantul regency. There were six sampling stations, and sampling was conducted once a week for two months from mid October to December 2011. Samples of macroinvertebrate were collected by poking substrate in front of surber net mouth so that macroinverterbrate were drifted into surber and trapped in pocket net. Samples were preserved in 5% formaldehide solution then identifi catifi ed and anlyzed in the laboratory.The species number of macroinvertebrate were analyzed as biotic index, such as diversity index, evenness index, dominance index and biotic family index (BFI). Environment parameter measured include physical and chemical properties. The physical parameter collectednamely subtrate type, river depth and stream width, fl ow velocity, temperature and total suspended solid (TSS). The chemical parameter collected namely dissolved oxygen, free CO2, alcalinity,organic matter and pH. The results showed that fl ow rate was varied 0.51-0.80 m/det decrease to downstream direction.The water depth was ranging from 19.9 to 49.8 cm tend to increase downstream direction. Total suspended solid (TSS) was ranging from 8.5 to 14.2 mg/l and tend to be higher in the central city of Yogyakarta. Dissolved oxygen concentration was 6.0-7.2 mg/l while CO2 was 0.7-1.9 mg/l. Organic matter was 22.8-25.1 mg/l and pH was in the range of neutral. The density of macroinvertebrate was 88 individual/m2, the taxa number in each station was 7-12 species, diversity index was 1.48-2.09, evenness index 0.76-0.85 and dominance index was 0.10-0.27, and there was not found dominance organism among the stations samplings. The highest density was Limnaea tranculata and Potamopyrgus jenkinsi. Index biotic family ranging from 5.95 to 6.64 showing the water environment was poor and there has been pollution caused by garbage disposal of communities surround the river also waste disposal from resident along the watershed.
Pengaruh Perbedaan Jenis Pakan terhadap Pertumbuhan Populasi Brachionus plicatilis Regina Melianawati; Adi Hanafi; Made Suastika
Jurnal Perikanan Universitas Gadjah Mada Vol 8, No 1 (2006)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jfs.172

Abstract

The objective of this research was to know the effect of different feed on the growth of rotifer, Brachionus plicatilis population. Three combinations of feed namely (A) yeast + enrichment ingredient; (B) Isochrysis tahiti + yeast + enrichment ingredient and (C) Isochrysis tahiti were used as treatments in triplicates. Initial density of B. plicatilis was 100 ind./ml. Feeding frequency was twice per day, at 08:00 am and 16:00 pm. This experiment was carried out for 72 hours, and sampling was done every 24 hours. The results showed that the highest density for treatment A, B and C were 330.3±7.6, 305.0±63.8, and 300.0±10.0 ind./ml, respectively. In addition, the highest population reached at 660,667, 610,000 and 600,000 individuals for treatments A, B, and C, respectively. Percentages of B. plicatilis with eggs in each population were 15.14, 20.46, and 13.95% for treatments A, B, and C, respectively. These results indicated that yeast and enrichment ingredient gave the highest growth of Brachionus plicatilis population.
PENDUGAAN DAMPAK KEBIJAKAN SUKU BUNGA TERHADAP KINERJA EKONOMI MAKRO SEKTOR PERIKANAN: ANALISIS JALUR INVESTASI DAN EKSPOR MENGGUNAKAN PENDEKATAN MODEL STRUCTURAL VECTOR AUTOREGRESSION Tajerin Tajerin
Jurnal Perikanan Universitas Gadjah Mada Vol 7, No 2 (2005)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jfs.9069

Abstract

Rapid and complicated development of system, operation, and money market instrument contribute in separation process between monetary and real sectors activities that deminise the effectiveness of monetary policy. Transmission mechanism test by using investment and net export channels indicated that increase in the interest rate of Indonesian Bank Certificate had negative impact on the performance, investment, export and Product Domestic Brutto of fisheries sectors.  Monetary instrument should be designed to drive aggregate demand in fisheries sectors in accordance with economical capacity from supply side. On the other hand, proactive effort in fisheries sectors was needed through the monetary policy from Bank of Indonesia to increase productivity of macro economy in fisheries sectors.  Rapid and complicated development of system, operation, and money market instrument contribute in separation process between monetary and real sectors activities that deminise the effectiveness of monetary policy.  Transmission mechanism test by using investment and net export channels indicated that increase in the interest rate of Indonesian Bank Certificate had negative impact on the performance, investment, export and Product Domestic Brutto of fisheries sectors.  Monetary instrument should be designed to drive aggregate demand in fisheries sectors in accordance with economical capacity from supply side. On the other hand, proactive effort in fisheries sectors was needed through the monetary policy from Bank of Indonesia to increase productivity of macro economy in fisheries sectors.  
PENCUCIAN MEMPENGARUHI MUTU SURIMI CUCUT (Carcharhinus sp.) Amir Husni; Iwan Yusuf Bambang Lelana
Jurnal Perikanan Universitas Gadjah Mada Vol 4, No 2 (2002)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jfs.8876

Abstract

Shark is one of low value fishes in Yogyakarta. In order to increase the value, shark was processed into surimi. In this research, shark was processed into surimi with different  washing time frequency (0, 2, 4, and 6 times) to investigate the gel properties of shark surimi.Gel strength of shark surimi increased as the washing time frequency increased from 0 to 6 times. The 4 and 6 washing time showed similar gel strength and sensory characteristics. Shark surimi with 6 washing time and pre-incubation at 40oC followed by cooking at 90oC produced the highest gel strength. 
Biochemical Genetic Analysis Of Three Population Of Marble Grouper, Epinephelus polypekhadion Gusti Ngurah Permana; Haryanti Haryanti; Sari Budi Moria; Nyoman Adiasmara Giri; Ketut Sugama
Jurnal Perikanan Universitas Gadjah Mada Vol 9, No 2 (2007)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jfs.32

Abstract

Genetic variations of marble groupers, Epinephelus polypekhadion were evaluated to know genetic performance of fish to support fish seed production. Fifty fish samples from three locations i.e. West Nusa Tenggara, South Sulawesi and East Java were collected for analysis. Genetic analysis has been examined through allozyme electrophoresis by using 11 enzymes (ADH, GPI, SDH, IDH, LDH, ME, PGM, 6PGD, MPI, SP, EST). The result showed that 16 loci were detected, and three of them were polymorphism enzymes namely Isocitric dehydrogenase (IDH*), Glucose Phosphate Isomerase (GPI-1*) and Esterase (EST-2*). One locus (EST-2) was polymorphic in the East Java and West Nusa Tenggara populations and three loci (EST-2, GPI-1 and IDH) were polymorphic in the South Sulawesi population. The heterozygosity ranged from 0.007 to 0.034. Rogers genetic distance between population pairs were ranged from 0.005 to 0.012 (average = 0.009). Differences between genetic populations were significant (P<0.05). East Java and West Nusa Tenggara populations have same gene pool.

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