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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 450 Documents
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PEMANFAATAN Azolla sp. UNTUK PENURUNAN KANDUNGAN COD DALAM LIMBAH LAUNDRY Ammelia Mentari; Namastra Probosunu; Ratih Ida Adharini
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.25978

Abstract

This research aims to know the ability of Azolla sp. to improve the water quality of laundry wastewater based on COD. This research applied 6 treatments with 3 replications using Completely Randomize Design (CRD) analysis. The treatment consists of P0 (0 gram), P1 (50 gram), P2 (100 gram), P3 (150 gram), and P4 (200 gram) which was placed in a tank that contains 30 liters of laundry wastewater with 50% dilution. The parameters of water quality such as COD, pH, water temperature, and biomass were being observed in every 7 days for 21 days. The result showed that Azolla sp. has the ability to improve the quality of the water from laundry wastewater, especially in lowering the COD level. The results showed that the laundry wastewater’s COD decreases from 133,43 mg/L to 41,52 mg/L. The density and the effective time of Azolla sp. in improving the quality of laundry wastewater is on 7 days of 150 gram treatment or 14 days of 50 gram treatment
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%.
IMPLIKASI MODEL BIOEKONOMI TERHADAP MANAJEMEN PERIKANAN TANGKAP: STUDI KASUS DI PANTAI SELATAN YOGYAKARTA Suadi Suadi; Soeparno Soeparno; Retno Widianingroem
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.8974

Abstract

Small-scale marine capture fisheries have contributes to community welfare at Yogyakarta’s south coast. Government has planned some programs to develop fisheries. The development supposed only at rational effort in which fishers still gain advantages. Precautionary approach using bio-economic model of Gordon-Schaefer was applied to analyze the issue. The linear regression model of catch per unit of effort (C/f) (CPUE) and effort (f) was C/f = 59,851 – 0,0005f (R2 = 82, 71%). Fish price assumed at Rp 7,735.19 /kg with operational cost of Rp 59,835.67/trip. Total revenue and effort at maximum sustainable yield was predicted at Rp 13,396 billion and 56,860 trip (equals to 327 vessels), respectively. Fisher income at this level was Rp 167,774.51/trip/vessel. Fish exploration level in this area has already closed to total allowable catch. Free access equilibrium in which cost is equal to revenue might reach at effort of 102,231 trip (equals to 568 vessels). Managing fisheries at maximum economic yield might rise fisher income 17.83% comparing to maximum sustainable yield, but total revenue decreased 1.77% at 56.13% of existing effort. Some management strategies should be promoted and regulated for the fishery exploitation. Based on the results, those possible strategy were 1) limiting investment through regulation and permission; 2) improvement of fishers productivity through technology improvement to exploit  under-used fish resources; 3) expanding the fisheries activity to offshore through harbor development and social preparation; 4) marketing improvement through revitalization of fish action; 5) improving hadling and post harvest fish technology through training and extension; 6) the increasing of bargaining position through empowering fishers group; 7) promoting alternate incomes through integrated coastal tourism development; and 8) avoiding competition and conflict through developing Java’s south coast cooperation. Participatory approach in planning, developing and evaluating should be promoted to develop fishery a southern coast of Yogyakarta.
Kandungan Logam Berat pada Kerang Kepah (Meritrix meritrix) dan Air Laut di Perairan Banjarmasin Jovita Tri Murtini; Rosmawaty Peranginangin
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.138

Abstract

Studies on heavy metal content of Meritrix meritrix and surrounding waters as well as the quality of Banjarmasin waters were done. Observation was carried out in June, August and October 2003 at 6 sampling points, 3 stations were 1 mile while 3 others were 2 miles from coastal line. Distance between stations was approximately 1 mile. The samples collected from each station were hard clam (Meritrix meritrix), sea water and sediment. Heavy metals content, Hg, As, Cd, Cu and Pb, in hard clam and mercury content in sea water and sediment were analyzed by atomic absorption spectrophotometer (AAS). The result showed that Hg content of Banjarmasin waters in June, August and October 2003 were 6.05, 3.17, and 4.91 ppb, respectively, indicated that Banjarmasin waters had been polluted by mercury. Whereas the hard clam in Banjarmasin waters contained Hg (1.91 ppb), As (0.88 ppb), Cd (0.22 ppb), Cu (0.46 ppb), and Pb (0.32 ppb) which were still under the maximum concentration for consumable clam.
TINGKAT PEMANFAATAN SUMBER DAYA IKAN HASIL TANGKAPAN DI PERAIRAN JEMBER Ariesia A. Gemaputri
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.9094

Abstract

The purpose of this research was to determine the Maximum Sustainable Yield and Catch Per Unit of Effort as a management tools to solve the fi sh capture in the waters of Puger sub-district, Jember district. This research was conducted by direct observation method in the fi eld, and collected the statistical data from the Animal, Fisheries and Marine Department of Jember, and also from Fishing port of Puger. The statistical data as seconday data was obtained in time series from 2005 to 2011 (7 year), namely fi sh production and catching effort, then it was analyze dusing the Schaefer method to fi nd thevalue of MSY and CPUE. The MSY was analyzed using regression formula Y = a – bX (Y= CPUE, X= effort). The results showed the CPUEin the year 2007 was the highest approximately 23.47kg/trip. The Lowest CPUE was   occurred in the year 2005 approximately12.38kg/trip. Based onthe regression of Y= 33.213 -0.00004X, the MSY was found at 6,894,396.1kg/year,while the maximum catch effort was 207,581.25 trips/year
Aspek Biologi dan Potensi Lestari Sumberdaya Lobster (Panulirus spp.) di Perairan Pantai Kecamatan Ayah Kabupaten Kebumen Muammar Kadafi; Retno Widaningroem; Soeparno Soeparno
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.171

Abstract

The research on biological aspects and maximum sustainable yield of spiny lobster (Panulirus spp.) in Ayah coastal waters Kebumen Regency aimed to know biological aspects (including species of lobster, length-weight relationships, and sex-ratio), maximum sustainable yield, and exploitation rate of spiny lobster. Biological data were collected in January-February 2004 with census and survey methods. Production and effort data between 1998 to 2003 were used to estimate maximum sustainable yield of spiny lobster. This research found six species of lobsters (Panulirus homarus, P. ornatus, P. penicillatus, P. longipes, P. versicolor, and P. polyphagus). Length-weight relationships based on the sex and carapace length showed isometric and allometric growth models. Male and female ratio was 1,06:1. The maximum sustainable yield was 19,498 kg/year and the exploitation in this area was already overfished.
DISTRIBUSI SUSPENSI DAN SEDIMEN DI TELUK JAKARTA DAN PERAIRAN KEPULAUAN SERIBU Helfinalis Helfinalis
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.9068

Abstract

The objectives of this study were to know total suspended solid (TSS) and sediment distributions in Jakarta bay and Seribu Islands waters. This study was conducted on 5-11 August 2003. Water samples for TSS measurement were taken from the water surface (2 m depth), 1 m upper the bottom surface, and in the middle of water column in each station. The highest TSS was found at 0.75 g/l on the water surface in front of the westside of Cengkareng drain. In Seribu Island waters, TSS was lower than 0.07 g/l. High TSS in the middle of water column were found in the north of Untung Jawa Island, Rambut Island waters, and north of Cengkareng drain. The highest TSS in the middle of water column reached 0.0324 g/l in surrounding Muara Angke waters. On the other hand, low TSSs in the middle of water column were found in the east of Untung Jawa Island and in the west of  Rambut Island at around 0.0268 g/l. On the bottom, high TSSs were found in the most east of Bidadari and Karang Ubi Islands at 0.23 g/l. Low TSSs at around 0.02 g/l were found in the east and southeast of Untung Jawa Island and the north part of sampling location in this study. Silty mud sediment was observed in the northwest of Cengkareng drain estuary. In the surrounding Dadap and Kamal estuaries, silt, sandy silt, sand, and silty sand sediments were gradually found. Distribution of muddy sand  sediment was found very narrow in the Jakarta Bay, but wider in the north of Tanjung Pasir. Silty sand, sand, sandy silt, and silt sediment were observed in the north part of sampling location in this study.The objectives of this study were to know total suspended solid (TSS) and sediment distributions in Jakarta bay and Seribu Islands waters. This study was conducted on 5-11 August 2003. Water samples for TSS measurement were taken from the water surface (2 m depth), 1 m upper the bottom surface, and in the middle of water column in each station. The highest TSS was found at 0.75 g/l on the water surface in front of the westside of Cengkareng drain. In Seribu Island waters, TSS was lower than 0.07 g/l. High TSS in the middle of water column were found in the north of Untung Jawa Island, Rambut Island waters, and north of Cengkareng drain. The highest TSS in the middle of water column reached 0.0324 g/l in surrounding Muara Angke waters. On the other hand, low TSSs in the middle of water column were found in the east of Untung Jawa Island and in the west of  Rambut Island at around 0.0268 g/l. On the bottom, high TSSs were found in the most east of Bidadari and Karang Ubi Islands at 0.23 g/l. Low TSSs at around 0.02 g/l were found in the east and southeast of Untung Jawa Island and the north part of sampling location in this study. Silty mud sediment was observed in the northwest of Cengkareng drain estuary. In the surrounding Dadap and Kamal estuaries, silt, sandy silt, sand, and silty sand sediments were gradually found. Distribution of muddy sand  sediment was found very narrow in the Jakarta Bay, but wider in the north of Tanjung Pasir. Silty sand, sand, sandy silt, and silt sediment were observed in the north part of sampling location in this study.
APLIKASI BAKTERIN SEBAGAI IMUNOSTIMULAN UNTUK PENCEGAHAN INFEKSI VIRAL NERVOUS NECROSIS (VNN) PADA BENIH IKAN KERAPU BEBEK, Cromileptes altivelis Des Roza; Fris Johnny
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.8875

Abstract

An experiment on application of immunostimulant bacterin in order to prevent Viral Nervous Necrosis (VNN) in seed production of humpback grouper, Cromileptes altivelis has been conducted in Gondol Research Institute for Mariculture hatchery. The experiment arranged in completely randomized design with two replicates. One thousand and five hundred fry with total length 4 cm were treated as followed ; 1 ml bacterin/L sea water by immersion (Treatment A), 1 ml bacterin/kg pellet by oraly (Treatment B), and without bacterin as a control (C). Bacterin was immersion and oraly every 10 days for 60 days rearing period. Challenge test with VNN was carry out at day 30 and 60. At the end of experiment the non-spesific immune were examined. Result of challenge test performed at day 30 showed that treated fish gave positive response to bacterin treatment. The highest survival showed by treatment B (65.0%) followed by treatment A(50.0%) and C (22.5%). The same result also showed after challenge test at day 60. The highest survival was 72.5% (treatment B) followed by 67.5% (treatment A) and 35.0% (control). Phagocytic activity (PA) of treatment B was 15.5%, and 14.0% from treatment A compared to 8.0% in control. Lysozyme activity (LA) of treated groups were also higher than control namely 1.8 cm for treatment B followed by 1.6 cm for treatment A, and only 1.2 cm in control. Addition of bacterin immunostimulant in feed gives is survival rate higher compared to way of immersion and control. Statistically non-spesific immune response of humpback grouper was significant different among treatment (P<0,05).
Aspek Reproduksi Ikan Tetet, Johnius belangerii Cuvier (Pisces: Sciaenidae) Di Perairan Pantai Mayangan, Jawa Barat Mohammad Fadjar Rahardjo; Charles Parningotan Haratua Simanjuntak
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.31

Abstract

The objective of the experiment was to know the effect of vitamin C on gonadal development of giant freshwater prawn (Macrobrachium rosenbergii) broodstock. Female broodstock of 30-60 g and male broodstock of 40-70 g average body weight were used in this experiment. The broodstock were fed with different dose of vitamin C in feed as 0; 0.05; 0.10; and 0.15% at 3-4% of biomass weight per day for 3 months. Gonado Somatic Index (GSI) value obtained from the diet with 0.15% of vitamin C was significantly different from others (P0.05). The supplementation of vitamin C in the diet of giant freshwater prawn broodstock is important for gonadal development.
PENGARUH KONSENTRASI MIMOSA TERHADAP SIFAT FISIK KULIT IKAN PARI TERSAMAK Ruth Y. Situmorang; Latif Sahubawa; Siti Ari Budhiyanti
Jurnal Perikanan Universitas Gadjah Mada Vol 10, No 1 (2008)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jfs.8937

Abstract

The physical quality of stingray leather is influenced by the types of tanning material (either natural or synthetic). Mimosa is a natural tanner produced of accacia skin extract. The objective of this research was to know the influence of mimosa concentration on the physical properties of tanned stingray leather. This experiment used Complete Randomized Design with four treatments of mimosa concentration, p1 (10%), p2 (12%), p3 (14%) and p4 (16%). The observed physical parameters were (a) tensile strength, (b) elongation at break, (c) rip strength and (d) organoleptic properties (flexibility and color). The data was analyzed with analysis of variance and Honesty Significant Different. Results indicated that the stingray leather treated with 14% mimosa gave the highest tensile strength (3383.11 N/cm2) and rip strength (429.40 N/cm2). The leather treated with 10 % mimosa resulted the highest elongation and 12% mimosa resulted the highest leather flexibility (2.53) and color (2.67). Though the HSD test did not show any significant differences between treatments, in general, the physical of tanned stingray leather of all treatment fulfilled the Indonesian National Standard of stingray leather (SNI.06-6121-1999). Therefore based on practical consideration, 10% mimosa was recommended for application.

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