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INDONESIA
JOURNAL OF COASTAL DEVELOPMENT
Published by Universitas Diponegoro
ISSN : 14105217     EISSN : -     DOI : -
Core Subject : Education,
Education
The Journal of Coastal Development (ISSN 1410-5217) is dedicated to all aspects of the increasingly important fields of coastal and marine development, including but not limited to biological, chemical, cultural, economic, social, medical, and physical development. The journal is jointly published by the Research Institute of Diponegoro University, Semarang, Indonesia and Indonesian Assosiation of Oceanologist (ISOI).
Arjuna Subject : -
Articles 7 Documents
 1 
Search results for , issue "Vol 3, No 2 (2000): Volume 3 Number 2 Year 2000" : 7 Documents clear
THE EFFECT OF LIQUID SMOKE ON THE QUALITY AND OMEGA-3 FATTY ACIDS CONTENT OF TUNA FISH (Euthynnus affinis) Fronthea Swatawati; Takeshi Suzuki; Eko Nurcahya Dewi
JOURNAL OF COASTAL DEVELOPMENT Vol 3, No 2 (2000): Volume 3 Number 2 Year 2000
Publisher : JOURNAL OF COASTAL DEVELOPMENT

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Abstract

Introduction : the problem faced in smoking fish is primarily related to deterioration of lipid caused by oxidation, that may cause of omega-3 fatty acid content in fish. This research was aimed at investigating the effect of different method of smoking fish to the organoleptic value, proximate composition and omega-3 fatty acid content. The experiment was carried out in The Laboratory of Coastal Zone Ecodevelopment, Diponegoro University, Jepara. Analysis of omega-3 fatty acid was conducted using Shimadzu Gas Chromathography in The Laboratory of Food Science and Technology, Tokyo University of Fisheries, Japan. Material and Method : a randomized design was used in this study; filleted skipjack tuna (Eutynnus affinis); approximately 125 gr in weight and about 25 cm in length was used in both coconut shell for the traditional method and liquid smoke from Giulini Chemii for modern method. The temperature of the smoking process was between 40 – 80 °C. Sensory test and proximate composition were determined in order to support an omega-3 fatty acid analysis. Result and Discussion : the average value of sensory test of traditional smoked tuna was between 3.00 – 8.33; liquid smoked tuna was between 6.67 – 9.00. the protein composition was 38.98% and lipid was 2.71% for the traditional product and 32.21% and 2.06% were obtained in liquid smoked tuna. Analysis of DHA resulted in 17.6% (traditional) and 20.9 (liquid). The results showed a significant difference between two products. The product of liquid smoked fish had better appearance, longer shelf life and higher omega-3 fatty acid content.
THE INFLUENCE OF SALINITY AND UREA FERTILIZER DOSAGE ON POPULATION GROWTH OF Spirulina sp. Sri Ariyati; Tri Retnaningsih Soeprobowati; Hendarko Sugondo
JOURNAL OF COASTAL DEVELOPMENT Vol 3, No 2 (2000): Volume 3 Number 2 Year 2000
Publisher : JOURNAL OF COASTAL DEVELOPMENT

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Abstract

Research on Spirulina sp. has been development since it was found to have a high economic value and as healthful as human traditional food such as the fishes. Therefore, the factors that influence the culturing of this algae should be maintained properly to obtain a high quality of the product. The research was done to determine the interaction of salinity and the dosage of the urea fertilizer on the population growth of Spirulina sp. factorial design with the combination treatment of four salinities (12,5 ppt, 15 ppt, 17,5 ppt, 20 ppt) and three dosage of urea fertilizer (80 ppm, 100 ppm, 120 ppm), are applied with 3 replications. The result indicated that the highest Spirulina sp. population is 321000 unit/ml, wet weight is 3,349 gr/l and dry weight is 1,315 gr/l which was found on the 20 ppt salinity and 120 ppm of urea fertilizer dosage.
INDONESIAN FISHERIES PHENOMENA: Development, Enhancement and Management Indah Susilowati
JOURNAL OF COASTAL DEVELOPMENT Vol 3, No 2 (2000): Volume 3 Number 2 Year 2000
Publisher : JOURNAL OF COASTAL DEVELOPMENT

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Abstract

Indonesia has a great endeavor in fisheries resources. However, most of the resources remain underutilized in some extents. At the same time, resources disparity is occurred in Indonesian fisheries. Tight competition among the resource users happen in fisheries with dense population. In such situation, thereafter, tragedy of common phenomena will happen. Managing fisheries resource in the condition which constitutes thousands of islands like Indonesia is not an easy task and should be quit costly in expenses. One of strategies that require less in cost and could promise a better achievement is through reviving the potency which belongs to the community (such as traditions, customs, beliefs, etc.) and with empowering community to manage the fisheries resource.
THE DEVELOPMENT OF SELECTIVE AND UNSELECTIVE FISHING GEAR OWNED BY FISHERMAN AT THE NORTH COAST OF CENTRAL JAVA Asriyanto .; Agung Setiarto
JOURNAL OF COASTAL DEVELOPMENT Vol 3, No 2 (2000): Volume 3 Number 2 Year 2000
Publisher : JOURNAL OF COASTAL DEVELOPMENT

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Abstract

Introduction : The Utilization of fisheries resource in Indonesia waters has just achieved about half (56.06%) of the maximum sustainable yield. In the north coast of Central Java, which has a coastal line of about 450 kilometers, 20 types of fishing gear are owned by fishermen. Experiment : Data were collected from Annual Report 1993 – 1997 issued by Central Java Fisheries Agency. Twenty types of fishing gear were classified into 6 groups, i.e. seine nets, purse seine, gillnets and trammel nets, lift nets, lines, and traps. Two of them were categorized as unselective fishing gear, i.e. seine nets and purse seine, whereas the other 4 were classified as selective ones. The number of each group was expressed in means and percentages and the development/changes thereof was presented in percentage. Results and discussion : The number of unselective fishing gears grew rapidly from 1996 to 1997, i.e. seine nets 17.31% and purse seine 12.07%. on the country the number of selective fishing gear increased slightly or even decreased, for example traps (5.98%), line (4.13%), liftnets (-3.21%), and gill nets & trammel nets (-2.45%). The management of fisheries resources should be focused on the enhancement in the number of selective fishing gear and the extension of their fishing ground, combined with close monitoring on the mesh size of unselective fishing gear.
EFFECT OF LAND-BASED POLLUTION ON CENTRAL JAVA CORAL REEFS Evan N. Edinger; Michael J. Risk
JOURNAL OF COASTAL DEVELOPMENT Vol 3, No 2 (2000): Volume 3 Number 2 Year 2000
Publisher : JOURNAL OF COASTAL DEVELOPMENT

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Abstract

Land-based pollution has severely damaged nearshore corals reefs in the Jepara area, Central Java. Effect described here include reduced coral cover and diversity, high coral mortality, reduced reef habitat complexity, and increased bioerosion intensity, compared to reference reefs in the Karimunjawa Islands National Marine Park, Central Java. Furthermore, the polluted reefs have negative net carbonate production indicating net reef erosion. Reef health parametres based on coral cover and diversity and on net carbonate production are inversely correlated with chlorophyll A concentration, suggesting eutrophication of coastal waters as a key agent of reef degradation. Untreated sewage dumping, agricultural runoff, and aquacultural effluent all contribute to nearshore eutrophication in Central Java, but it is not possible from this study to determine which of these types of land-based pollution is most responsible for degradation of Central Java reefs. Efforts to restore the condition of degraded reefs must begin with controlling sources of land-based pollution.
COASTAL AND MARINE ENVIRONMENT PROBLEMS IN EAST KALIMANTAN PROVINCE Supriharyono .
JOURNAL OF COASTAL DEVELOPMENT Vol 3, No 2 (2000): Volume 3 Number 2 Year 2000
Publisher : JOURNAL OF COASTAL DEVELOPMENT

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Abstract

Coastal and marine problems were collected from the coastal community in area of the Municipality of Balikpapan East Kalimantan Province, from fishermen, NGO’s and government officials. The technique used was that of the Field Participatory Workshop’s. the result of the study revealed some coastal community awarenees, coastal resources usage, and governmental policy. The local government’s failure to solve those problems was mainly due to lack of social awarenees for environmental coastal management and lack enforcement.
THE ABILITY OF Chorella sp. ON REDUCING Zn CONSENTRATION OF SWEATER IN LABORATORY Tri Hastutiningsih; Tri Retnaningsih Soeprobowati; Hendarko Sugondo
JOURNAL OF COASTAL DEVELOPMENT Vol 3, No 2 (2000): Volume 3 Number 2 Year 2000
Publisher : JOURNAL OF COASTAL DEVELOPMENT

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Abstract

Research on the use of Chorella sp. on reducing of Zn concentrations was conducted in order to know Zn concentration which is maximally absorbed by Chorella sp. In the preliminary experiment, there was the range of Zn concentration that caused the highest population growth of Chorella sp. was 0.1 – 0.4 ppm. In the main experiment, it was divided into five concentrations and one control with three replications. Each of concentrations was treated on Chorella sp. culture with the first Zn concentration (0.0042 ppm) in the medium culture. Those concentrations were 0.05 ppm, 0.15 ppm, 0.35 ppm, 0.45 ppm. All of the concentrations were given on the day of 5. The density of cells which was used for each flask was 100,000 cells/ml. The fertilizers used for each flask were : ZA, Urea, TSP, FeCl3, EDTA. The result showed that there was an interaction between the population growth of Chorella sp. and the reducing of Zn concentration. The highest population growth of Chorella sp. was found in the treatment of 0.15 ppm Zn concentration.

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