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SAINTEK PERIKANAN
Published by Universitas Diponegoro
ISSN : 18584748     EISSN : 25490885     DOI : -
Core Subject : 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).
Arjuna Subject : -
Articles 259 Documents
A REVIEW OF PEARL OYSTER (Pinctada maxima) CULTUREIN GENERAL Aji, Ludi Parwadani
SAINTEK PERIKANAN Vol 6, No 2 (2011): Jurnal Saintek Perikanan
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Abstract

ABSTRACT                   Pearl oyster culture is unique because the product is gem not flesh and one of the species that produce pearl is Pinctada maxima (Silver or Gold lip pearl oyster). Stock for pearl oyster production can be collected from the wild or hatchery. However, hatchery production is a better solution to supply P.maxima for pearl production rather than just depend on wild stocks. Spat from the wild or hatchery will be grown-out for pearl production by longline or raft culture system method in ocean. Raft culture provide a work platform to repair, clean and store culture tools, while, longline culture has better design to deal with wave or wind exposure. There are identified different culture systems according different species (for example between P.maxima and P.fucata) and locations. Several constraints on P. maxima culture also identify such as biofouling organisms, predations and diseases that can reduce productivity and pearl quality. For example, mass mortalities of P.maxima occurred in Western Australia due to viral infection and it disrupted the pearl oyster industry. Therefore, several strategies are needed to mitigate those problems to achieve maximal productivity by using good management culture practice.       Key word: pearl oyster, P. maxima, management, culture
Imitation Bait Colour of Skipjack Pole and Line Puspito, Gondo
SAINTEK PERIKANAN Vol 6, No 1 (2010): Jurnal Saintek Perikanan
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Abstract

A serial experimental fishing using skipjack pole and line had been carried out for 14 days from July to October 2007 in Banda Sea. The aim was to obtain the most productive colour of imitation bait to catch skipjack. The research tested three colours of imitation bait those were  red, silver and green. Result showed that the silver colour of imitation bait caught more skipjack than those two other colours. Its hook rate was 0.67 fish/minute, followed by red and green with hook rate of  0,58 fish/minute and 0.47 fish/minute.   Key Words: Imitation Bait, Life Bait, Pole and Line, Skipjack.
The Development Opportunity of Catch Fishery in The Province of Southern Sumatera Septifitri, Septifitri
SAINTEK PERIKANAN Vol 6, No 1 (2010): Jurnal Saintek Perikanan
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Abstract

South Sumatera province since 2000, began managing the fishery resources separately with the Province of Bangka Belitung. Bangka Belitung contribution in the fisheries sector of the South Sumatera province in 1999 by 72 %. Based on these conditions, then do research on fisheries development opportunities in the surrounding waters of South Sumatera. This research was conducted in February 2006 until July 2006 in two Regency namely Komiring Ogan Ilir and Banyuasin Regency.  The results showed that the leading commodities in the province of South Sumatera is shrimp, crab, marine catfish (Arius thalassinus), and wolf herring (Chirosentrus dorab). This leading commodities still have a great opportunity to be developed for their utilization rates still ranged between 58,42% – 66,77% Fishing gear priority based on the analysis of MCA (multy Critical Analysis) with considering the biological aspects, technical, social and economic is trammelnet, drift gillnet and Stationary-bamboo lift net.   Key Words: Development, Capture Fisheries , South Sumatera province
PERBANDINGAN HASIL TANGKAPAN UDANG DENGAN MENGGUNAKAN LAPDU, GILTONG DAN TRAMMEL NET DI PERAIRAN SAENGGA KABUPATEN TELUK BINTUNI Iskandar1, Dahri
SAINTEK PERIKANAN Vol 6, No 1 (2010): Jurnal Saintek Perikanan
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Abstract

This experiment was carried out at Saengga Waters of Teluk Bintuni Regency using 6 (six) pieces of trammel net, lapdu and gilltong, respectively. The objective of this experiment was to compare catchability of trammel net, lapdu and gilltong for capturing shrimp. Total catch obtained in this experiment was 534 fishes which consist of 25 species. Dominant catch was banana prawn (Penaeus indicus) i.e 38.6% of total catch, followed by flatfish (Cynoglosus sp) and croaker fish (Cynoglosus sp) which consist of 17.04 % and 10.11 % of total catch, respectively. Dominant catch of gilltong and lapdu was dominated by fish while catch of trammel net was dominated by prawn. In term of Catch per Piece of Net, trammel net caught significantly large number of catch than gilltong and lapdu.   Key Words: Trammel Net, Gilltong, Lapdu, Catch, Shrimp
Analysis of Growth Gracilaria sp. In Shrimp Pound From The Level of Sedimentation Widyorini, Niniek
SAINTEK PERIKANAN Vol 6, No 1 (2010): Jurnal Saintek Perikanan
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Abstract

Due to the increasing of Gracilaria sp demand in international market, intensive culture is required for it. Used niche of shrimp pound could be give adventages in Gracilaria sp culture, and also Gracilaria sp culture in shrimps pound can be used as shelter for the shrimp from direct sunlight. The aim of this research are to know sedimentation effect in shrimp pound its relationship in Gracilaria sp growth and water quality because of existing Gracilaria sp in the pound.The research  on June until December 2005.Experiment research method is used in this research. Data of Gracilaria sp growth and level of sedimentation will be collected in 7 (seven) weeks in one week time interval “rakit apung” methods is used in this research and its located the near of water inlet, pound fields, and near the water outlet. Corelation and regration are used to data analysis. Temperature, salinity, pH, depth, water flow and transparency of the water will be analyzed for water quality. As the result, the average of growth level of Gracilaria sp which is located in the fields pound higher than Gracilaria which located both near the water inlet and outlet, and the average of sedimentation level in the field pound less than both near the water inlet and outlet. In corelation regretion analysis found an interaction between level of sedimentation and the growth of Gracilaria sp especially which is located near the water inlet. The water quality still good for Gracilaria sp.Key Words: Sedimentation, Gracilaria sp, Growth
Some Efforts to Improve Business Performance Improvement Through Fishery Business Environment in Cantrang (Boat Seine) and Local Government Policies in The District Rembang Kusumawati, Peny
SAINTEK PERIKANAN Vol 6, No 1 (2010): Jurnal Saintek Perikanan
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Abstract

Fishing effort is one of economic activities so that in running its activities are always based on economic considerations for businesses that run to generate profits. Fishing effort has not been able to contribution a larger potion to develop Central Java economy. This is because the factors that affect fishing effort. Therefore, the government should take steps to of improve economic development, especially in the field of fisheries. The purpose of this study is to determine the environmental impact of fishing effort to the performance of fisheries, fishery business environment, and government policies on the performance of the fishery business in district Rembang. The research was conducted in Rembang in April - May 2008. The method used is descriptive by counducting survey. Primary sources of data the fishermen community. The method to determine the respondents by using purposive sampling method. Collected data were analyzed using descriptive statistics, the presentation of data displayed in a frequency distribution table. To test the hypothesis proposed in this research by using, data analysis technique SEM (Structural Equation Modelling) which is operated using the program AMOS 6. The results of research shows the significance level of 5% positive effect on the business environment business performance with the calculated value of t (4.468)> | 1.96 |. By lookong at, the business environment variables fisheries, fishery performance cantrang can increase the business environment has positive influence on local government policy variables with t-count value (7.017)> | 1.96 |. Government policy is able to increase fishing effort. Capital with low interest rates is able to help fishermen catch fish in running the business. Local government policy has positive influence on business performance variables in thecapture fisheries with t-count (2.311)> | 1.96 |. Capital with low interest rates can increase the performance of the fishery business in the distric of Rembang. In conclusion the fishermen to obtain capital to improve fishing business.   Key Wards : Business Environment, Performance, Government Policies
Zooxanthellae Life Model and Massalization Growth in the Artificial Environment Waters Purnomo, Pujiono Wahyu
SAINTEK PERIKANAN Vol 6, No 1 (2010): Jurnal Saintek Perikanan
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Abstract

Zooxanthellae are part of the phototropic dinoflagellates. This organism  always live as symbiotically with several marine invertebrates. Relationship between zooxanthellae and coral are mutualistic with the transfer nutritif and phisiologis character. With this character, no coral can live without zooxanthellae. Zooxanthellae have vital control on the coral and sessile life. Model of relationship between zooxanthellae and coral are adopted in the artificial environment for take the massalization culture zooxanthellae in the artificial environment. This study was purposed to : (a) Evaluating of environment limiting factors to support optimum growth of zooxanthellae in the artificial environment; (b) Evaluating of purification culture of zooxanthellae and (c) Formulating nutritif to maintenance of maximum gorwth of zooxanthellae. The experiment took place in Natural food and Genetic laboratory of Main Centre of Brackishwater Aquaculture Development Jepara from August 2004 to September 2005. The result showed that: (a) The optimum irradiance for growth of zooxanthellae is green radiance (with comparison 490 - 550 nm); (b) The optimum temperature for growth of zooxanthellae are 20 – 25oC and (c) Adding of 200 µM NaNO3 with repeat again for 16 days,   Key Words: Zooxanthellae, Life Model,Massalization Growth
Toxicity of Extract Tobacco Leaves to The growth of Oreochromis niloticus Rudiyanti, Siti
SAINTEK PERIKANAN Vol 6, No 1 (2010): Jurnal Saintek Perikanan
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Abstract

Tobacco can be used as natural pesticide since it contained high concentration of nicotine that may killed pest and fish diseases. This work aimed to know the influence and inhibiting concentration of tobacco leaves extract to the growth of Tilapia. The research was conducted on March to May 2007 at laboratory of Satker PBIAT Ngrajek, Magelang. Fish fry used were in between 1,74±0,105 g with the density of 10 were tested in 20 L fresh water, were tested using several concentration of tobacco leaves extract. Sub lethal toxicity tested in the laboratory using complete random design for 28 days. The result showed that LC50 -96 hours is 22,492 mg/L. It is shown that extract of tobacco leaves has a significant influence to the fish growth. The highest absolute biomass growth is at treatment  K (3,72 g), followed by treatment  A (3,29 g), B (2,96 g), C (2,75 g), and D (2,24 g). Whereas the highest daily growth rate is also at treatment K (3,93 %), followed by A (3,75 %), B (3,59  %), C (3,45 %), and D (3,06 %). The inhibiting concentration (IC 50) is 15,733 mg/L. Water quality during the experiment indicated a suitable condition for fish life medium.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          Key Words : Extract of tobacco leaves, Tilapia fry, Growth
Gelatin Application of Nile Tilapia (Oreochromis niloticus) Bone to The Quality of The Jelly Candy Maryani, Maryani; Surti, Titi; Ibrahim, Ratna
SAINTEK PERIKANAN Vol 6, No 1 (2010): Jurnal Saintek Perikanan
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Abstract

The characteristic of a jelly candy is sweet in taste and has elastic texture. The elastic texture due to gelling agent addition such as carrageenan, sea weed, gum arabic, and gelatin. The Utilization of nile tilapia bone as the source of gelatin product is away to prevent gelatin that is not halal. The aim of the research was to know the concentration of nile tilapia bone gelatin which produced the best quality of jelly candies based on physical chemical characteristic as well as the member of Escherichia coli and hedonic value. The experiment was designed using a Completely Randomized Design with 3 treatments (9%, 10%, 11%) of nile tilapia bone gelatin concentrations. Each treatment was done in triplicate. Data of elasticity, moisture content, water activity, pH, sugar contents were analyzed with Analysis of Varians (ANOVA). A Honestly Significant Difference (HSD) test was conducted to find out the difference among the treatments. The data of hedonic quality was analyzed by a Kruskall Wallis test and continued by a Multiple Comparison. The result showed that the addition of 10% nile tilapia bone gelatin produced the best quality product which had the elasticity (14.20 Newton); moisture content (17.06%); Aw 0.785; pH 4.78; sugar content (48.23%); hedonic (8.13) and the product did not content Escherichia coli bacteria. Key Words : Jelly Candy, Nile Tilapia Bone Gelatin, Quality
The Used of Different Culture Medium Effect on The Growth Of Chlorella Sp Chilmawati, Diana
SAINTEK PERIKANAN Vol 6, No 1 (2010): Jurnal Saintek Perikanan
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Abstract

The effort of aquaculture especially in the brackish and marine water becomes more develope,. That development cannot be separated from seeding phase. To sufficient the needed of seed, it is needed seed aquaculture by giving sufficient and quality life food, because it cannot be replace yet by the imitation food on the early of larvae seedling. One of the life food is Chlorella sp that given to zooplankton variety directly to the fish or shrimp cultivan. Therefore the Walne, Guillard’s f/2, and Erdschreiber culture mediums are suitabel medium used to phytoplankton culture.  The purpose of this research is to know the influence of medium of usage of Walne, Guillard’s f/2, and Erdschreiber on the growth of Chlorella. Also to know the best medium from those three medium on the growth of Chlorella sp the research was Laboratories experimental character. The effort scheme used is completely randomized design 3 treatments and 3 times repetitions,  Those 3 treatments are as follows: A. Walne Medium, B. Guillard’s f/2 Medium, and C. Erdschreiber Medium. The result of the research shows that the used of different culture medium effect on the growth of Chlorella sp, that is significant difference (P<0,05) on the Lag Phase time with best treatment B (0,290 days), great significant difference (P<0,01) on the specific growth rate with best treatment B (0.655). Thus on the maximum density and final density (on Log No. sel/mL) is great significant differences with best treatment B (Guillard’s f/2) each are 7.931 and 6.443. The best medium for Chlorella sp. from those three mediums used in this research is Guillard’s f/2 medium.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          Key Words : medium, culture, growth, Chlorella sp

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