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Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology

saintek
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Published by Universitas Diponegoro

ISSN : 18584748 EISSN : 25490885 DOI : -

Core Subject : Education,

Education

SAINTEK PERIKANAN (p-ISSN: 1858-4748 dan e-ISSN: 2549-0885) adalah jurnal ilmiah perikanan yang diterbitkan oleh Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro. Jurnal ini diterbitkan 2 (dua) kali setahun (Februari dan Agustus).

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Articles 11 Documents

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Search results for , issue "Vol 8, No 1 (2012): Jurnal Saintek Perikanan" : 11 Documents clear

Isolasi Dan Karakterisasi Bakteri Asam Laktat Dari Usus Udang Penghasil Bakteriosin Sebagai Agen Antibakteria Pada Produk-Produk Hasil Perikanan Romadhon Romadhon; Subagiyo Subagiyo; Sebastian Margino
Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology Vol 8, No 1 (2012): Jurnal Saintek Perikanan
Publisher : Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro

Lactid Acid bacteria are capable of fermenting sugars or carbohydrates to produce lactic acid in large numbers. The characteristics of lactic acid bacteria in general are cells reacted positively to the Gram stain, catalase react negatively and do not form spores. And fermentation of glucose would result Iaktat acid. Isolation of lactic acid bacteria carried in the intestines of three species of shrimp that Tiger Shrimp (Penaeus monodon), shrimp Seker (Metapenaopsis sp.), Guts White shrimp (Penaeus merguensis). Selection of bacteriocin -producing lactic acid bacteria were in a qualitative and semi-quantitative (pitting) in MRS medium. Selected isolates were identified by morphological characteristics, biochemical, physiological, A number of 209 isolates were isolated from three species of shrimp. The results of the qualitative selection there were 54 isolates produced bacteriocins. The results of the quantitative selection of 54 isolates produced 24 fine isolates. From the 24 isolates there are 2 isolates seed SFE-7 (33) and P12A (25). Characteristics of seed isolates had morphological characteristics of spherical shape, cell arrangement tetrad, gram positive, negative motility. While the results of the biochemical approach to gram-negative, catalase negative, homofermentative (no gas in the fermentation of glucose), can ferment D-Galactose, D-Glucose, D-mannose, D-lactose. Physiological approaches to isolate growth SFE-7 (33) and P12A (25) can be generated that both isolates able to live in the range of 4 ° C to 50 ° C, in the range of pH between 4-10, and able to grow at levels of 5-10% NaCl . Based on these characteristics can be inferred featured isolates was Pediococcus acidilactici Key words: Lactid Acid Bacteria, intestine of shrimp, Pediococcus acidilactici

The Effect of Leaching Times on the Gel Properties of Catfish (Clarias gariepinus) Surimi Ima Wijayanti; Joko Santoso; Agus M. Jacoeb
Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology Vol 8, No 1 (2012): Jurnal Saintek Perikanan
Publisher : Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro

The effect of leaching times on the proximate composition and gel properties of surimi has been studied in this research. Leaching times significantly influenced the chemical composition of catfish surimi. The raise of leaching times increased the water content and decreased protein, fat and minerals composition of catfish surimi. Water holding capacity value of surimi gel by leaching 3 times increased 29.78% compared to leaching one time. Deformation increased with the rising of leaching times. The highest deformation was reached by leaching 4 times with raising 74.27% compared to leaching one time. Result of sensory evaluation indicated that the rising of leaching times had positive impact in folding test and teeth cutting test. Three and four times of leaching produced better characteristics of the gel rather than leaching 1 and 2 times. Keywords: cat fish, gel properties, leaching times, surimi

Potensi dan Peluang Pengembangan Usaha Perikanan Tangkap Di Pantura Jawa Tengah Imam Triarso
Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology Vol 8, No 1 (2012): Jurnal Saintek Perikanan
Publisher : Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro

The research on capture fisheries resources in north coastal of Central Java were to anticipate amount produce and effort of capture fisheries. Usefulness from this research expected to earn as reference of management of small scale fisheries and consideration alternative which can be taken for local government of Central Java Province. Primary data were collected from local fishers, while secondary data were collected from district and Marine and Fishery Services Central Java Province. Data series of 2006 to 2009 were also analyzed by bioeconomic analysis with surplus production model. The result indicate that condition of capture fisheries resources in North Coastal of Central Java were overfishing, included its several regency/city adjacent areas. The effort in developing fish capture has reached its boredom circumstance so this situation needs better maintenance and control toward the capturing activities. The policy expected to minimize exploitation of fishery resources on coastal area, and the vessel can more further to off shore and oceanic area. The government as a policy maker on fisheries management for coastal fisheries must applicable precautionary approach by focusing on biology and economic aspects. Key words: fisheries product, bio-economic model, small scale fisheries management

The Influence of Depth of Plantation to the Growth Rate of Eucheuma cottonii Seaweed Cultivated by Longline Method in Mlonggo Beach, Jepara Regency Titik Susilowati; Sri Rejeki; Zulfitriani Zulfitriani; Eko Nurcahya Dewi
Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology Vol 8, No 1 (2012): Jurnal Saintek Perikanan
Publisher : Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro

The aim of the research was to evaluate the influence of three different depth of plantation of Eucheuma cottonii seaweed to the relative and daily growth rate of seaweed. The experiment was designed using a Completely Randomized Design with 3 treatments (25, 50 and 75 cm) depths of Eucheuma cottonii seaweed. Each treatments was done in triplicate. Data of the relative and daily growth rate of seaweed are expressed as mean ± standard deviation and then were analysed using one way Analysis of Variance (ANOVA). A Duncan Multiple test was applied to find out the difference among the treatments. Based on the results, the different depth of plantation gave a highly significant influence (p<0.01) to the the relative and daily growth rate of seaweed. The treatment for 25 cm of the depth plantation showed the relative growth of seaweed of 910% , nearly 3 times of 75cm of depth plantation. The result of this research indicated that the 25 cm depth of plantation was the best relative and daily growth rate of seaweed of all treatments. Key words : The depth of plantation , relative growth rate, daily growth rate, Eucheuma cottoniii

Policy Analysis Towards Karimunjawa Fisherman Catching Activity Regency Jepara Bambang Argo Wibowo; Herry Boesono; Aryo Bayu Aditomo
Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology Vol 8, No 1 (2012): Jurnal Saintek Perikanan
Publisher : Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro

Karimunjawa National Park has pioneered in community development activities either through economic development, institutional strengthening, creation of alternative livelihoods and community capacity building since 1998. This activity was expected to raise the public's readiness to participate in maintaining and preserving the Karimunjawa National Park. However, the participation in this context could place people as an object, not as a subject. Therefore, further study is needed on whether the conservation of biological diversity embodied in the Karimunjawa National Parks zoning really gave positive impact on fishing communities and ecological sustainability. Moreover, fishermen only operate around coral reefs in shallow waters, making it very vulnerable to the violation of the National Park system zoning. The research method used in this research was descriptive method, while the sampling method used is purposive sampling. Data analysis methods used were SWOT and AHP analysis (Analytical Hierarchy Process). Policy strategies to overcome the issue of the National Parks zoning is increased security in Karimunjawa conservation areas, increased cooperation between the BTN, DKP, and Tourism Department to maintain the potential of coral reef fishery resources in order to remain sustainable, the allocation of funds from the government to assist BTN monitored overfishing, illegal fishing , and environmental pollution from damaged fishing gear, and the provision of an integrated socialization to encourage people to keep conserving the resources. Key words: Karimunjawa National Park zoning, biodiversity conservation, AHP (Analytical Hierarchy Process)

Effect of Different Escape Vent on Collapsible Pot For Catching Mud Crab Dahri Iskandar
Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology Vol 8, No 1 (2012): Jurnal Saintek Perikanan
Publisher : Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro

The objective of this research was to obtain optimum shape of escape vent to mud crab catch. The research used common fishermen’s pot for catching mud crabs. Three types of escape vent were installed in the pot i.e. rectangular shaped escape vent, Ship Same Side Corner Rectangle (S3CR), circle shaped escape vent while non escape vent pot was used as control. Result of research indicated that total catch of each escape vent type was as follow: circle shaped escape vent pot was 57 fishes or equal with 21.84% of total catch, S3CR shaped escape vent pot was 46 fishes or equal with 17.62 % of total catch and rectangular shaped escape vent pot was 36 fishes or similar with 13.79 % of total catch. Kruskall-Wallis test also indicated that there was significant different of total catch between different type of escape vent pot (P=0.000; Chi-Square = 22.659). Mud crab catch of S3CR shaped escape vent pot was showing the highest catch than other type of escape vent pot. Kruskall- Wallis test on total catch of mud crab also indicated significantly different among different type of escape vent (P=0.005; Chi-Square = 12.667). Keywords: Collapsible pot, escape vent, mud crab, catch

Aplikasi Teknologi Aquaponic Pada Budidaya Ikan Air Tawar Untuk Optimalisasi Kapasitas Produksi Ristiawan Agung Nugroho; Lilik Teguh Pambudi; Diana Chilmawati; Alfabetian Herjuno Condro Haditomo
Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology Vol 8, No 1 (2012): Jurnal Saintek Perikanan
Publisher : Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro

The experiment was conducted to acknowledge the effect of seed to the media using aquaponic system and to identify the influence of aquaponic system to the media’s water quality of Oreochromis niloticus’s fingerling to increase production capacity. The experiment was conducted at fish farmer’s fingerling ponds at Muntilan, Magelang (Central Java) for 2 weeks observations. It used completely randomized design, were reared at 200,400 and 600 fish density with three replications over to 2 m2 ponds with aquaponic system and 400 densities as a control to non-aquaponic system. The result of experiment showed that there was an influence of seed’s density to cultivan’s growth that used aquaponic system, especially to total length of fish. The aquaponic system is also influence the fixing of media water Oreochromis niloticus fingerling, especially the reduction of ammonias (NH3). Key words: aquaponic, water quality, red tilapia, fingerling

Soaking Period of Cooked Blood Cockle (Anadara granosa) Meat in Alginate Solution to Cadmium Content Reduction Achid Furqon Al Chusein; Ratna Ibrahim
Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology Vol 8, No 1 (2012): Jurnal Saintek Perikanan
Publisher : Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro

Some blood cockles in the West Banjir Kanal river estuary in Semarang have been contaminated by some heavy metal that exceeds the level of Indonesian National Standard requirement. The research aimed to find out the effect of different soaking period of cooked blood cockle (Anadara granosa) meat in 4.0% alginate solution to the cadmium content reduction, moisture content, ash content, pH and organoleptic values of the product. The experimental design used was completely randomized design with three treatments, namely the soaking period of cooked blood cockle meat in 4.0% alginate solution for 10 minutes, 20 minutes, 30 minutes and control (without soaking). Each of the treatment was done in triplicate. The results showed that the different soaking period of cooked blood cockle meat in 4.0% alginate solution (for 10 minutes, 20 minutes, 30 minutes) resulted in highly significant reduction of cadmium content which was from 1.588 mg/kg (control) to 0.463 mg/kg (the lowest) after 30 minutes soaking period. The longer the soaking period of cooked blood cockle meat in 4.0% alginate solution the lower the cadmium content. The soaking period of cooked blood cockle meat in 4.0% alginate solution for 30 minutes was the best soaking period because it could reduce the content of cadmium up to 0.463 mg/kg and the organoleptic value was 7.89 which met the quality requirements of cooked blood cockle meat according to SNI. Key words: Cooked blood cockle meat, alginate, cadmium, pH, quality

Species and size composition of tuna longline catches in the Southes of Java, Indian ocean Setiya Triharyuni; Budi Iskandar Prisantoso
Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology Vol 8, No 1 (2012): Jurnal Saintek Perikanan
Publisher : Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro

The growth of long line fleets operating in the south of Java resulted in smaller tuna caches both in number and size. Information on species and size composition of tunas is very important. This was done to obtain an overview of long line catch composition and its linear regression. The long liner’s catch data from south of Java in July, September, October 2005 and January 2006 are processed with a simple linear regression. The result shows that the yellow fin tuna is the dominant catch, where stingrays are the largest in by catch. From length-weight relationship analysis, which is divided into whole length-weight relationship and processed length- weight relationship, it is shown that the growth of big eye tuna is isometric, where albacore and yellow fin is negative allometric. Key words: Albacora, bigeye, Yelowfin, fish weight, fish length

The Effect of Gracilaria verrucosa Extract Feeding to the Blood Glucose Content of White Rats (Rattus norvegicus) Candra Tama S.A.; Eko Nurcahya Dewi; Ratna Ibrahim
Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology Vol 8, No 1 (2012): Jurnal Saintek Perikanan
Publisher : Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro

Food fibre could retard the absorption of glucose into blood. Gracilaria verrucosa seaweed species contains high food fibre. The objective of the study was to investigate the effect of different doses of G. verrucosa extract fed on white rats (Rattus norvegicus) to the blood glucose after one and two hours feeding of extract. The results indicated that the different G. verrucosa extract doses fed on white rats caused highly significant difference in the blood glucose contents from the blood samples of the treatments after one hour and two hours feeding time. The blood glucose contents were highly significant lower compared to the control. The highest dose was 4.5 g/kg body weight could reduce 53.65% of blood glucose content. Keywords : Gracilaria verrucosa, white rats, blood glucose.

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