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Jurnal Perikanan Universitas Gadjah Mada

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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.

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Articles 460 Documents

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The Capability of Cinnamon as an Off-Flavor Masking Agent for Spirulina platensis enriched Food Product Wahdan Fitriya; Khusnul Alfionita
Jurnal Perikanan Universitas Gadjah Mada Vol 20, No 2 (2018)
Publisher : Universitas Gadjah Mada

The purpose of this research was to know the effectiveness and the description of aroma of cookies, flakes, and dried noodles fortified with biomass of Spirulina platensis microalgae and cinnamon powder. Fortification was done to increase the nutritional value while the addition of cinnamon powder was done as an aroma masking ingredient to reduce off-flavor of the product. The observations included hedonic test using 60 panelists to find out the best concentration of cinnamon powder additions favored by panelists, followed by quantitative descriptive analysis (QDA) using trained panelists to know the aroma description of the product. The cinnamon powder added to each product was 2.5; 5; 7.5; and 10%. The results showed the concentration of cinnamon for cookies, flakes, and spirulina drieds noodles were 10; 2.5; and 2.5 %, respectively. The selected product was then tested by QDA and generated respectively 13; 12; and 10 perceptions of aroma, while dominant perceptions emerging were cinnamon-like, sunflower seed-like, sand ginger-like, and caramel-like.

The 16S and COI Mitochondrial DNA Nucleotide Composition of Stripped Snakehead (Channa striata Bloch,1793) from Lake Sentani, Jayapura, Papua Christine Bawaeda Sitandung Kombong; Tuty Arisuryanti
Jurnal Perikanan Universitas Gadjah Mada Vol 20, No 2 (2018)
Publisher : Universitas Gadjah Mada

Stripped snakehead (Channa striata Bloch,1793) has potency to be developed in Indonesia due to high nutritional value including omega 3 which is useful for children growth. However, study on composition of mitochondrial DNA nucleotide as a part of study on genetic characterization of stripped snakehead fish in Indonesia is poorlyunderstood. Genetic characterization of stripped snakehead is important to obtain data information that can be applied for breeding and conservation program. Therefore, the objective of this study was to determine the 16S and COI mitochondrial DNA nucleotide of stripped snakehead collected from Lake Sentani, Jayapura, Papua. Method used in this research is PCR method using primer 16Sar and 16Sbr for 16S mitochondrial gene, and FishF2 and FishR2 for COI mitochondrial gene. The results showed that composition of 16S mtDNA nucleotide from 616 bp was T=21.92%, C=25.49%, A=30.19%, dan G=22.40%, whereas composition of A+T=52.11% and G+C=47.89%. In addition, composition of COI mtDNA nucleotide from 705 bp was T=29.93%, C=28.65%, A=24.26%, and G=17.16% while composition of A+T=54.48% and G+C=45.52%. Data of 16S and COI mitochondrial DNA nucleotide composition of the stripped snakehead collected from Lake Sentani gained in this study are to be expected to complete genetic information of the fish species which is useful to improve breeding program of this fish species in the future.

Seaweed Selection to Supply Superior Seeds for Cultivation Nelly Hidayanti Sarira; Petrus Rani Pong-Masak
Jurnal Perikanan Universitas Gadjah Mada Vol 20, No 2 (2018)
Publisher : Universitas Gadjah Mada

Seaweed Kappaphycus alvarezii is a pre-eminent commodity in the field of marine and fisheries Indonesia which has been widely cultivated in coastal waters. Currently, the main problem faced by the cultivators is the limited stock of seeds, both in terms of quality and quantity. Selection is one method that is expected to increase the rate of seaweed growth quickly, cheap, easy, bulk, and sustainable.This study aims to determine the effect of selection on the growth of seaweed so that it can be done superior seed production for cultivation purposes. Seaweed cultivation was done in Kulu Village, Wori District, North Minahasa Regency, North Sulawesi by using long line method in April-June 2015. Selection is based on the daily growth rate parameter (DGR) and the selection method refers to the selection protocol that has been developed on K. alvarezii seaweed. Results showed that DGR of selection seedlings were higher (P <0.05) compared to controls, in which DGR of selection reached 5.87%/day, while DGR of control was 1.89%/day. From three seed production cycles (G-1 - G-3), the average DGR resulted from the selection was 5.53%/day and control 2.19%/day. Carrageenan content of selection result is relatively higher (47.66%) than control (31.28%) with mean for three cycle (G-1 - G-3) that is 43.55% for selection and 33.20% for control. Water quality (temperature, salinity, nitrate, phosphate) during the study is still within the appropriate range for seaweed growth. Therefore it is concluded that with the application of the method of seaweed selection can increase the daily growth rate and carrageenan content of seaweed K. alvarezii which directly affects the increase of production both in quantity and quality.

Distribution and Composition of Lobster Species Caught in Java Sea of East Java, Indonesia Arief Setyanto; Nabilla Artini Rachman; Eko Sulkhani Yulianto
Jurnal Perikanan Universitas Gadjah Mada Vol 20, No 2 (2018)
Publisher : Universitas Gadjah Mada

Lobster resources are abundant in Indonesia waters. Lobster’s catch production is known as an important fishery commodity. A lobster fishery is considered important fisheries within the Indonesia fishe ies management zone. So that, its management plan is needed to be developed. As a consequence, preliminary study on lobster distribution by its species proportion or composition in their catches by its fishing ground and fishing season (month) are important to mitigate the resources. The study was conducted in Java Sea of East Java to explore the lobster species distribution and composition. The Java Sea is laid within the Fisheries Management Zone of the Republic of Indonesia number 712. Lobster catch data were collected from 4 regions (landing bases) across East Java. They are Lamongan, Bawean, Tuban and Sumenep. The data was collected from December 2016 - March 2017. These regions are representing over all biogeography of marine ecology of East Java. Statistical test for homogeneity of composition/proportion of species of lobster by its regions or location and time/month were analyzed and tested statistically using one way Analysis of Variance (ANOVA). The results shows that the composition o lobster species in each regions or location in different time/month are different. There were our species o lobster identified. They are Panulirus ornatus, P. homarus, P. polyphagus, and P. Versicolor. P. ornatus found in those four locations. All 4 species are caught in Lamongan. there are no species of P. Homarus have been caught in Bawean. In Tuban there is 3 species of Panulirus ornatus, P. polyphagus, and P. homarus. While in Sumenep there are only two species which are P. ornatus and P. Versicolor. Panulirus polyphagus is dominant in Lamongan, Bawean, and Sumenep while P. homarus is in Tuban. Those four species were caught in the month of December, January, February and March with P. Polyphagus as a dominant catch.

Vulnerability Analysis of Sea Level Rise In The Southern Coast of Bawean Island Zainul Hidayah; Agus Romadhon; Yudha Witjarnoko
Jurnal Perikanan Universitas Gadjah Mada Vol 20, No 2 (2018)
Publisher : Universitas Gadjah Mada

Bawean island is one of numerous small islands in East Java. This island is famous for its natural resources and high level of environmental services. However in the last few years, effects of sea level rises on the island have been reported. Objective of this research was to identify and determine parameters that have significant impact on the vulnerability of the island due to sea level rise events. This research was conducted from July untill September 2017. The method used for this study was a combination of spatial analysis using remote sensing and Geographical Information System (GIS), field survey and interviews with local people. Vulnerability assesment was conducted for three parameters, namely Exposure, Sensitivity and Adaptive Capacity. The results showed that the vulnerability index in the southern part of the island is 3.381. It can be classified as low vulnerability.

The Effect of Chitosan in Feed on Growth, Survival Rate and Feed Utilization Efficiency of Nile Tilapia (Oreochromis niloticus) Rozi Rozi; Akhmad Taufiq Mukti; Syifania Hanifah Samara; Muhammad Browijoyo Santanumurti
Jurnal Perikanan Universitas Gadjah Mada Vol 20, No 2 (2018)
Publisher : Universitas Gadjah Mada

Chitosan is a functional polysaccharide that is capable of inducing various biological activities. This research aims to examine the effect of chitosan on growth and blood profile of tilapia fish. The method used in this research was experimental methods with completely randomized design (RAL) consisting of 4 treatments and 3 times. 120 Tilapia fish in 5-7 cm in range size were reared in aquarium at density of 10 fish/aquarium. Feedwere given at the additional dose of 10 ppt, 50 ppt, and 100 ppt chitosan. The observed variables were growth rate, survival rate, fish blood profile, water quality, feed utilization efficien . The results showed that the best chitosan treatment was at a dose of 100 ppt which produced FCR of 3.48 ± 2.25, AGP: 0.13 ± 0.03, SGR: 0.85 ± 0.84 and EPP: 28.70 ± 16,54.

Pemijahan dan Perkembangan Embrio Ikan Pelangi, Melanotaenia spp. Asal Papua Chumaidi, Chumaidi; Nur, Bastiar; Sudarto, Sudarto; Pouyaud, Laurent; Slembrouck, Jacques
Jurnal Perikanan Universitas Gadjah Mada Vol 11, No 2 (2009)
Publisher : Universitas Gadjah Mada

Rainbow fish (Melanoptaenia spp.) originated from Sungai Gelap of Papua. The objective of this experiment was to know the fecundity, hatching rate and the rate of embryogenesis. Total of 50 male and female broodstock measuring 10–15 cm reared in closed recirculating water system in concrete tank until their gonad matured. One pair composed of one male and two female’s of matured fish was transferred to 1 x 1 x 0.5 m³ concrete tank for pair breeding, the fish was sheltered with water hyacinth. Released eggs were observed in the morning and in the afternoon daily. Eggs were categorized into fertile and infertile. Some 25 eggs were incubated in plastic baskets, and observed under microscope for their embryonic development stages. The results showed that rainbow fish from Sungai Gelap produced eggs (averages) 392 per female; fertility rate was 93.74%; average hatching rate was 87.36%, and the fertilized eggs were hatched approximately 5 days incubation.

Pembenihan Selektif Kerapu Bebek, Cromileptes altivelis Turunan ke-2 (F-2) Tridjoko, Tridjoko; Haryanti, Haryanti; Muzaki, Ahmad; Sutarmat, Tatam
Jurnal Perikanan Universitas Gadjah Mada Vol 11, No 2 (2009)
Publisher : Universitas Gadjah Mada

The aim of this experiment was to know the gonad development of humpback grouper Cromileptes altivelis F-2 progeny. The F-2 progeny fishes were produced from selective breeding and composed by Lot 1, Lot 2 and Lot 3. The fishes were reared in the cylinder concrete tanks containing 75 m³, 10 m³ water and floating cages. Fishes were fed with commercial dry pellet in addition with vitamin mix, vitamin C and vitamin E. The result indicated that the mature gonad female of F-2 grouper broodstocks have been achieved. The female broodstocks with 590 g weight produced oocytes with diameter more than 400 µm. Genetic analysis showed that grouper Lot 2 was homogenous, did not find any polymorphism among individual fish, however Lot 1 and Lot 3 still showed high heterozygocity as 0.18 and 0.58, respectively.

Karakterisasi Tiga Lokus Mikrosatelit pada Telur dan Larva Tuna Sirip Kuning, Thunnus albacares Moria, Sari B.; Permana, Gusti N.; Hutapea, Jhon H.
Jurnal Perikanan Universitas Gadjah Mada Vol 11, No 2 (2009)
Publisher : Universitas Gadjah Mada

Characterization of three microsatellite loci are able to provide information about genetic variation or polymorphism of yellow fin tuna eggs and larvae produced by domestication of broodstock. Thirty samples of eggs and larvae were collected from different spawning day and analyzed. Amplification of those three loci were carried out with multiflexing technique and electrophoreted ABI Prism 310 Genetic Analyzer sequencer. From those three loci were used (Ttho-1, Ttho-4 and Ttho-7) showed that locus Ttho-7 had higher genetic variance (0.720-1.212) compared to others loci. Based on the result, it can be concluded that high allele frequency as showed at Ttho-7 could be used as marker for parental analysis.

Kondisi Terumbu Karang dan Biota Lainnya di Perairan Kecamatan Selat Nasik Kabupaten Belitung Tahun 2007-2008 Sjafrie, Nurul D. M.
Jurnal Perikanan Universitas Gadjah Mada Vol 11, No 2 (2009)
Publisher : Universitas Gadjah Mada

The aims of this study was to monitor the coral reef condition, coral fishes and benthic organisms in Selat Nasik Sub District waters. The sampling was carried out on March 2008 in 12 stations at Selat Nasik waters that were similar to sampling station for 2007 study. Observations on benthic lifeform was done using LIT (line intercept transect), coral fishes was observed using Underwater Visual Census (UVC) whereas benthic organisms was counted using Belt Transect. The result showed that the coral reef condition in Selat Nasik Sub District water’s was still in good condition. Coral Fishes increased in number, especially target fishes and indicator fishes. Bentic organisms such as Diadema and Fungia increased in number, whereas Tridacna decreased as well.

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