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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 16 Documents
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Search results for , issue "Vol 10, No 1 (2008)" : 16 Documents clear
ANALISIS KERAGAMAN MORFOMETRIK DAN GENETIK PADA STRAIN IKAN MAS (Cyprinus carpio) Didik Ariyanto; Imron Imron
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.8928

Abstract

The aim of this research was to identify the morphological and genetical variability in four strains of common carp (Cyprinus carpio) i.e. Majalaya, Rajadanu, Wildan and Sutisna. The study was conducted by analysis of truss morphometric and electrophoresis. Principal Component Analysis (PCA) was conducted to explore the patterns of body shape variability and the grouping among strains. The Degree of polymorphism, heterozigosity and genetic distance were used to identify the structure of populations. The results showed that the truss morphometric on head and caudal peduncle were the most contribute cells to distinguish the variability among strains. Based on genetic parameters analysis, strain of Rajadanu, Sutisna and Wildan were originaly coming from one strain with genetic distance about 0.0018 to Majalaya strain. Body shape similarity of Wildan and Majalaya strains was more influenced by their environment.
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.
EFEKTIVITAS EKSTRAK BAWANG PUTIH (Allium sativum) UNTUK MENCEGAH DAN MENGOBATI MOTILE AEROMONAS SEPTICEMIA (MAS) PADA IKAN MAS (Cyprinus carpio) Iesje Lukistyowati; Windarti Windarti; Morina Morina; Alim Isnansetyo; Kurniasih Kurniasih
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.8921

Abstract

The aim of study was to know the effectiveness of garlic (Allium sativum) extract in preventing and curing Motile Aeromonas Septicemia (MAS) in common carp (Cyprinus carpio). Garlic extract was obtained by juicing fresh garlic and filtering by using filter paper. Common carp (8-12 cm in total lenght) were used. Infection was done by injecting intraperitonially 0.1 ml 0f 24 h Aeromonas hydrophila culture at bacterial density of 108 cells/ml. Garlic extract was given by immersing the fish at various concentrations. Results indicated that the minimum inhibitory concentration (MIC) of the garlic extract againtst A. hydrophila ranged from 61.300-125.000 ppm, while the LD50 of this extract was 3.438 ppm. The use of garlic extract to prevent MAS was effective as survival rate of the treated fish with the extract at 1000, 2000, and 3000 ppm ranged from 83 to 100% while the survival rate of untreated fish was 60.71%. However, the use of garlic extract to cure MAS was not effective as the survival rate of the treated fish ranged 50-80% which were the same or even lower than that of the control (76.67%).
PENGARUH DEASETILASI DAN ALKALINASI TERHADAP KARAKTERISTIK KARBOKSIMETIL KITOSAN Yusro Nuri Fawzya; Rina Novianty; Singgih Wibowo
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.8929

Abstract

Carboxymethyl chitosan (CMCts) is one of the chitosan derivatives produced by the carboxymethylation process of chitosan. Compared to chitosan which is soluble in weak acid, the CMCts is soluble in water and it becomes more desirable in many applications both in pharmaceutical and food industries. Chitosan as the raw material of CMCts was made from chitin deacetylation. The reasearch aimed to study the effect of chitin deacetylation methods and concentrations of sodium hydroxide in the alkalination process on the characteristics of CMCts produced. Three deacetylation processes were applied in the production of chitosan, i.e. treatment with 60% NaOH at 70oC for 2 and 3 days, and treatment with 60% NaOH at ambient for 5 days. Whereas, the alkalination process was conducted using NaOH at the concentrations of 20, 30, 40 and 50%. The carboxymethylation of chitosan was carried out using monochloroacetic acid with the ratio of chitosan to monochloroacetic acid of 1 : 1.5 (w/w) at 50oC for an hour. The results showed that the CMCts produced had solubilitiy of 27.0 to 98,1% and viscosity of 28 to 265 cPs. Based on the solubility and viscosity, the best treatment was found on using chitosan which had been deacetylated with 60% NaOH at 70oC for 3 days followed by alkalination using NaOH of 30% before carboxymethylation. The treatment resulted CMCts with water solubility 98.1%, viscosity 265 cPs and yield 72.2%.
PENGGUNAAN EKSTRAK DAN BUBUK CENGKEH DAN KAYUMANIS UNTUK MEMINIMALKAN KANDUNGAN HISTAMIN PADA IKAN KEMBUNG PEREMPUAN (Rastrelliger neglectus) Meta Mahendradatta; Adiansyah Adiansyah
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.8938

Abstract

In this research, clove and cinnamon were prepared by grinding to produce spice powder and by solvent extraction to produce spice extract. They were stored in plastic and glass jar at ambient temperature for two weeks to observe the change of sensory quality. The spices were then combined and applied to short-bodied mackerel (Rastrelliger neglectus) and the total mesophilic microbes were enumerated. The best concentration of spice combinations which gave the lowest total mesophilic microbe was 2% of clove and 4% and cinnamon in form of powder and 4% of each spice in form of extract. The spice powder and extract, as well, were applied to short-bodied mackerel which has been prepared under various treatments. The treated fishes were stored and the histamine content was analyzed after two hours storage at ambient temperature. The result showed that spice powder and extract could decrease histamine content in short-bodied mackerel processed with and without boiling. Statistic analysis showed that there was significantly difference of each treatment on histamine content (p<0.01). Spice powder in combination with boiling process showed the higher percentage of the decrease of histamine content (94%) than that without boiling (42.5%), spice extract with boiling (28.3%) and without boiling (21%).
KELIMPAHAN PLANKTON DAN PEMANFAATANNYA OLEH NILA MERAH (Oreochromis sp.) DALAM HAPA PEMBENIHAN DAN PENDEDERAN DI WADUK SERMO Rustadi Rustadi
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.8923

Abstract

Plankton monitoring were conducted in hatchery and rearing hapas of red tilapia (Oreochromis sp.) to know plankton abundance and its utilization by fish during 98 days. Be-weekly plankton samples and fry fish guts were taken from fish hapa rearing, meanwhile brood fish gut were taken monthly. Be-weekly plankton and water monitoring were also applied in fish rearing without feed, water outside of hapas and river. Two units of bamboo frame, 6 x 6 m2 divided into 4 blocks respectively, were used for fixing 2 x 3 x 1 m3 hatchery hapa, and 1 x 2 x 1 m3 rearing hapa. Commercial feed was given daily to brood stock at the rate of 2% of the total fish weight and fry at the rate of 40%. Plankton density and composition in hatchery and rearing hapas were higher density than water reservoir and river. All size of red tilapia consumed selected plankton species, about 31.34-38.89% of existing species. Dominant plankton in hapa water were: Navicula, Closteriopsis, Sphaerocystis, Surirella dan Arthrodesmus and among them were prefered by red tilapia as natural food, namely Navicula, Surirella, Closteriopsis dan Sphaerocystis. Water quality parameters were still suitable for fish growth and breeding, but dissolved oxygen tended to low due to high plankton abundance.
OPTIMASI PEMBERIAN PAKAN BUATAN PADA PENDEDERAN IKAN PATIN (Pangasionodon hypohpthalmus) DI KOLAM YANG DIPUPUK Evi Tahapari; Didik Ariyanto; Bambang Gunadi
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.8927

Abstract

This research aimed to know the optimum formulated feeding patin (Pangasionodon hypohpthalmus) in the fingerling rearing in the fertilized pond. The fish seed were stocked in the fifteen cages of 3x2x1.25 m that were installed in the 50 m2 pond. Each cage was stocked with 600 fish with an average initial weight of 0.37 g and average body length of 2-3 cm. The treatments applied in this research were (A) without formulated feed, (B) 5% of biomass of formulated feed, (C) 10% of biomass of formulated feed, (D) 15% of biomass of formulated feed and (E) 20% of biomass of formulated feed. The protein level of the formulated feed was around 40%. The observations focused on the survival rates of fish, feed conversion ratios, body weight and length. The results showed that there were significant differences among fish treatments on the survival rates, feed conversion, weight and length growth (P<0,05). The survival rates of fish of the treatment A, B, C, D and E were 78.10%, 84.39%, 83.78%, 90.83% and 90.33%, respectively. The feed conversion of the feed given treatments i.e. B, C, D and E were 0.35, 0.62, 0.89 and 1.15, respectively. The weight growth during observation period (6 weeks) were 5.63 g, 15.29 g, 23.37 g, 39.17 g and 42.13 g for the treatments A, B, C, D and E, respectively, while the length increment for those treatments were 4.63 cm, 7.81 cm, 8.91 cm 1.5 cm and 11.05 cm, respectively. The water quality parameters were in the suitable range for fish growth.
KOMBINASI EFEKTIF EKSTENDER DAN KRIOPROTEKTAN PADA KRIOPRESERVASI SPERMA IKAN NILEM (Osteochilus hasseltii Valenciennes, 1842) A. Sunarma; D. W. B. Hastuti; D. M. Saleh; Y. Sistina
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.8931

Abstract

Cryopreservation technology of fish sperm has been developed to prolong gamete viability. Combination of two extenders (ringer or glucose) and two cryoprotectans (DMSO or methanol) on three concentrations have studied to sperm cryopreservation of nilem. Nilem fish brooder induced by GnRHa and domperidone combination. Sperm was diluted in extender at the ratio of 1:9 then cryoprotectant was added at 5%, 10% or 15% (v/v) concentrations. Samples were stored in 0,5 mL straws, equilibrated at temperature 4 – 5 oC for 20 minutes, vaporized at 3 cm above surface liquid nitrogen for 3 minutes and then plunged into liquid nitrogen, where they were stored for 1 weeks. Sperm was thawed at temperature 39 – 40 oC for 10 – 15 sec. and was used to fertilize 100 – 200 eggs per straw. The highest percentage of post-thawed sperm was combination ringer and DMSO 10% (87.50 ± 5.00%) and the lowest was combination ringer and methanol 5% (23.75 ± 4.79%). The highest hatching rate fertilized by post-thawed sperm was combination ringer and DMSO 15% (54.98 ± 28.61%) and the lowest was combination glucose and DMSO 15% (6.54 ± 3.32%). The study proven combination of ringer extender and DMSO cryoprotectant effective for cryopreservation of Indonesian silver sharkminnow fish sperm. Therefore, fish sperm cryopreservation with nilem as a representative model could be developed to extend on other Cyprinidae.
RUAYA BEBERAPA JENIS IKAN DI SUAKA PERIKANAN, SUNGAI LEMPUING, SUMATERA SELATAN Susilo Adjie
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.8942

Abstract

The purpose of this research was to know the migration pattern of fishes in the fisheries reserved of Lempuing River. Research was conducted in fisheries reserved areas along Lempuing River system from April 1998 to March 1999. The fishes migration patterns werenamely catfish (Mystus nemurus), kissing gourami (Helostoma temmincki) and carp (Osteochillus hasselti). The results showed that around 3.80 % of 394 tagged fish were recaptured. Recapture fishes were dominated by catfish (M. nemurus) which have the farthest migration than other group. Habitat of fisheries reserved, especially cannals, must be obstacles free to facilitate the migration.
PENAMPUNGAN LIMBAH DAN PENGARUHNYA TERHADAP LAJU SINTASAN DAN PERTUMBUHAN NILA MERAH DALAM KERAMBA JARING APUNG DI WADUK SERMO, YOGYAKARTA Rustadi Rustadi
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.8925

Abstract

The aim of this research was to find out the effect of waste collection in red tilapia culture using floating net cage to the quantity of the waste and degradation rate, on survival and growth rate of fish. A completely randomized design was performed in the experiment consist of two waste collections; namely: with and without collection, and three fish stocking weights of 2.5 kg, 5 kg and 7.5 kg fish/cage, with two replicates each. Floating net cages with the size of wide, length and height of 1 x 1 x 1.2 m were used in the experiment. To collect fish waste, inverted cone-shape plastic collector was attached to the cage and hanged 15 cm below the cage. Fingerling size ranged from 50 – 70 gram/fish were divided into two groups and stocked in the different replication. The fish were cultured for 84 days and fed daily with commercial feed (25-27% protein content) at the rate of 3% fish body weight. Waste sample were collected and incubated in different temperature of 20, 25 and 30 oC with deviation of 1 oC and 3 replicate each. Parameter of total dissolved solid (TDS), total suspended solid (TSS), DO, BOD, CO2 and NH3 were checked every 5 days for 20 days, and total N and total P were check at the beginning and the end. Data were analyzed statistically using confidence level of 95%. Total waste collected were ranged 0.109-0.117 kg dry weight/cage and waste lossing due to fixing collector 15 cm under the cage was about 14.44%. The addition of waste collection in fish culture tended to make lower survival and growth rate, meanwhile more stocking weight may increase fish harvest. Fish waste decomposed faster in higher temperature, indicate that the waste decomposition could decrease water quality and increase concentration of N and P nutrients.

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