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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 328 Documents
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BOTTOM WALL CONSTRUCTION OF “JODANG” TRAP APPLIED SELECTIVELY TO BABYLON TIGER (Babylonia spirata) SNAIL SIZE Gondo Puspito; Agus Suherman
JOURNAL OF COASTAL DEVELOPMENT Vol 15, No 2 (2012): Volume 15, Number 2, Year 2012
Publisher : JOURNAL OF COASTAL DEVELOPMENT

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Abstract

The objective of this research was to obtain net mesh bottom wall construction of “jodang” trap that selective to babylon tiger snails size, i.e. only shell length of    l < 4.27 cm approximately could pass through. There were 3 designs shapes of bottom wall construction tested, i.e. rectangular shape of 2.4 ´ 2.8 (cm) and 2 diamond shapes with net mesh size of 5,6 cm and primary hanging ratio of  E1 = 0.7 and 0.5. The results showed that rectangular shape bottom wall trap construction  was better than those two other constructions. Only 6.78% of snails with l ³ 4.27 cm could escape the rectangular shape bottom wall trap construction. Whereas 41.90% and 17.46% of  snail shells with l ³ 4.27 cm could escape from both the diamond mesh bottom wall trap construction. According  to selectivity curve, the rectangular shape bottom wall trap construction could retained snails with shells length of  l ³ 4.33 cm. The two others retained shells length of  l ³ 4.14 cm and l ³ 4.60 cm.
THE BIOLOGY OF SPINELESS CUTTLEFISH Sepiella inermis d’Orbigny IN THE NORT COASTAL WATER OF JAVA Abdul Ghofar
JOURNAL OF COASTAL DEVELOPMENT Vol 1, No 3 (1998): Volume 1, Number 3, Year 1998
Publisher : JOURNAL OF COASTAL DEVELOPMENT

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Abstract

A study was carried out to investigate the length-weight relationship, reproductive aspect, growth, and the relationship between beaks and body size of the spineless cuttlefish, Sepiella inermis d’Orbigny in the north coastal water of Java. The length-weight relationship varies relation to sexes; the slopes (b) are 2.147 for male and 2.436 for female, implying that the female attains a larger size at the same length. The fecundity of the species ranges from 145 to 225 eggs (taken by means of direct egg counting from individual having mantle length of 73-92 mm). The length at first maturity was estimate to be smaller in the male (73.24 mm) than in the female (91.63 mm). A growth model of the species is derived, based upon the data cuttlebone striations and mantle length. The life span of the species is estimated to be around 1 year, with a maximum mantle length of about 140 mm. The species grows rapidly, with curvature parameter of 2.413 yr1, and a hypothetical age t0 of -0.01 yr1. Lower hood length of the beaks show a strong, positive linear and exponential relationships respectively with mantle length and total body weight. Their potential use for biomass estimation, and for tropho-dynamic studies in the coastal water are indicated.
PROBIOTIC EFFECT OF Lactobacillus isolates AGAINST BACTERIAL PATHOGENS IN FRESH WATER FISH D Dhanasekaran; Subhasish Saha; N Thajuddin; M Rajalakshmi; A Panneerselvam
JOURNAL OF COASTAL DEVELOPMENT Vol 13, No 2 (2010): Volume 13, number 2, Year 2010
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Abstract

A total of 59 Lactobacillus isolates were isolated from 5 different fresh water fish such as Cat fish ( Clarias orientalis)  , Hari   fish (Anguilla sp), Rohu fish ( Labeo rohita),  Jillabe  fish (Oreochromis sp) and Gende  fish    ( Punitus carnaticus). Among the 59 isolates only 4 Lactobacillus isolates were selected for further study. Based on morphological and biochemical characteristics, the isolates were identified as Lactobacillus sp. The pathogen were isolated from infected cat fishes, characterized and identified as Vibrio parahaemolyticus, Aeromonas sp and Aeromonas salmonicida. The Lactobacillus isolates were screened for antagonistic activity against Aeromonas, Vibrio sp. by agar diffusion assay. Among the 4 isolates, Lactobacilli RLD2 showed significant antagonistic activity against Aeromonas and Vibrio sp alone. and was further evaluated by standard plate count assay for the viability of pathogen. The isolate was multiplied and the fish feed was supplement with Lactobacillus isolates. The results reveal that the size, weight of the fish was statically increased in comparison to that of control fish. The present study concluded that the Lactobacillus isolates could be used as probiotic bacteria in aquaculture, to manage aeromonasis.  
THE IMPACT OF GAZA FISHING HARBOUR ON THE MEDITERRANEAN COAST OF GAZA Mazen Abualtayef; Said Ghabayen; Ahmed Abu Foul; Ahmed Seif; Masamitsu Kuroiwa; Yuhei Matsubara; Omar Matar
JOURNAL OF COASTAL DEVELOPMENT Vol 16, No 1 (2012): Volume 16, Number 1, Year 2012
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Abstract

The Mediterranean coast of Gaza strip, which is covered about 40 km in length, is rich by coastal resources. The development that occurred along the coastal lines has led to the host of problems such as increased erosion, siltation, loss of coastal resources and the destruction of the fragile marine habitats. In order to conserve the depleting coastal resources, the changes due to development and associated activities must be monitored. Studying the temporal pattern of shoreline change is considered one of the most effective means of monitoring the cumulative effects of different activities. An attempt was made to study the impact of Gaza harbour on shoreline displacement along 6 km. This paper was intended to detect changes of coastal area in Gaza city to provide future database in coastal management studies. The analysis was carried out using image processing technique (ERDAS) and Geographical Information System platform. The variation during 38 years in the shoreline along the Gaza coast was determined by analyzing MSS, TM and ETM Landsat images from 1972 to 2010. The analyses identified the erosion and accretion patterns along the coast. The shoreline was advanced south of the Gaza fishing harbor, where the wave-induced littoral transport was halted by southern breakwater and the annual beach growth rate was 15,900 m2. On the downdrift side of the harbor, the shoreline was retreating and beaches erode at an annual rate of -14,000 m2. This study was emphasized that the coastal band is considered as a critical area, it is therefore necessary to monitor coastal zone changes because of the importance of environmental parameter and human disturbance. In particular, the projections of future shoreline erosion and accretion rates are considered important for long-term planning and environmental assessment for a variety of projects, including the construction and tourism facilities.
TOURISM AND CONSERVATION MANAGEMENT OPTIONS FOR KARIMUNJAWA MARINE NATIONAL PARK (Case Study and Reviews) Frida Purwanti
JOURNAL OF COASTAL DEVELOPMENT Vol 4, No 2 (2001): Volume 4, Number 2, Year 2001
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Abstract

Tourism  is a nature-based industry that will have impacts on the environment. In order to achieve successful and sustainable tourism, tourism development and conservation of natural resources have to go hand in hand. This will be only attained through an environmental strategic tourism planning approach. Karimunjawa islands as one of the largest marine protected areas in Indonesia, provide a wide range of opportunities for research and environmental education as well as for tourism and recreation. In 1995, the Central Java Government conducted a tourism development study, but the study failed to assess current tourist market. This study intent to analyse the existing tourist market and to offer management guidelines. The study was conducted using qualitative methods to analyse the existing tourism market and its’ development plan by reviewing and examining the primary and secondary sources. The study revealed that local residents are not fully involved in the development of the tourism plan. It is considered that, at least initially, tourism in the Karimunjawa Islands should be developed on a selective and small-scale base. It is recommended that a development manual, guidelines and policies be prepared in support of the tourism development plan. Public education program and involvement of the local community should be encouraged to support the tourism plan. The proposed management guidelines cover three issues : the environmental impact of tourism development; the appropriate institutional and legal framework to regulate and monitor tourism development, especially on the islands; and the extent of local community participation
SOME INVESTIGATION ON THE QUALITY OF SMOKED MACKEREL (Rastrelliger sp) USING VARIOUS WOOD WASTE OF LIQUID SMOKE ` Fronthea Swastawati
JOURNAL OF COASTAL DEVELOPMENT Vol 8, No 3 (2005): Volume 8, Number 3, Year 2005
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Abstract

Utilization of liquid smoke as an alternative method of processing fish is becoming more popular nowadays. Mackerel is one of nutritious fish commonly processed as smoked jish. Mackerel fish was dipped into 7,5% salt solutions and 5% liquid smoke of M) sugar-reed waste; (B) teak wood waste; and (C) paddy chajfjbr about I5 minutes, dried in an oven at 50—80°C The average of sensory value of the product was relatively high jar all samples, A= 8.45, B=8. 7I, and C=8.52. Moisture content of the product range 53-58%, protein content 30-32%, fat content 9-I0%,· and ash content x 2%. The highest phenol content was B=6I.46 mg/Kg, while A=43.22 mg/Kg and C=52.30 mg/Kg. The samples A, B, and C all stay in good condition until 3 days of storage in room temperature. Statistical analvsis of proximate data by using SPSS II method resulted p< 0. 05, means that moisture content of A and B was significantly dwerent. Protein content found that A was significantly dyferent compared to B and C Q2 < 0.05). While fat and ash content was not signdicantbv dferent in all samples go > 0.05).
A DEVELOPMENT PLAN FOR TOURISM POTENTIALS IN COASTAL AREA OF UJUNGNEGORO, BATANG REGENCY Suzzana Ratih Sari; Edy Darmawan
JOURNAL OF COASTAL DEVELOPMENT Vol 9, No 2 (2006): Volume 9, Number 2, Year 2006
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Abstract

Ujungnegoro is one coastal area in Batang Regency Central Java, which offers a unique environmentalsetting as well as enormous tourism potentials such as marine resources, aquaculture and plantations.Furthermore, Ujungnegoro has a variety of terrain ranging from plain to hills. Despite these potentials,presently the government faces some problems which hinder the development of tourism in this area,namely limited capital for development purposes, absence of infrastructure, inadequate governmentassistance in terms of budgeting and technical assistance. This paper analyzes these problems andidentifies appropriate planning strategies that may be adopted to promote the tourism industry inUjungnegoro, Batang Regency. These strategies will hopefully evolve into policies that will develop thisarea into uppropriate tourist destination. Should this come to pass, this area will provide a greatercontribution to the development of the area as a whole.
DEVELOPMENT OF DIGITAL MULTILAYER ECOLOGICAL MODEL FOR PADANG COASTAL WATER (WEST SUMATRA) A. Hartoko; M. Helmi
JOURNAL OF COASTAL DEVELOPMENT Vol 7, No 3 (2004): Volume 7, Number 3, Year 2004
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Abstract

Coastal water ecology represents a significant gain with regard to regional and local economic, fisheries (including marine culture), tourism and other activities.  Measuring their typical spatial distribution pattern, however, has proved challenging since the real coastal water parameters  as a part of a whole ecosystem and their interactions has never been revealed so far. A GPS guided sampling and in-situ measurement for the field data, digital and an image processing analysis were applied to insure that the simulated coastal water-ecology model was displayed with high levels of spatial,  geodetic and real-data accuracy.  The derived techniques could ultimately provide to coastal managers and decision makers with truthful ecologically and cost-effective means to assess the right zone for fisheries and other coastal water activities based on both temporal and spatial changes.
COMPARATIVE SELECTIVITY AND CATCHABILTY OF POT AND TUBE FOR CONGER EEL (Conger Myriaster) Dahri Iskandar
JOURNAL OF COASTAL DEVELOPMENT Vol 14, No 3 (2011): Volume 14, Number 3, Year 2011
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Abstract

The objective of this experiment was  to develop a method to estimate mesh selectivity of pot and comparative catchability between pot and tube for white spotted conger eel (Conger Myriaster). About ten times comparative fishing experiments were carried out off Haneda in Tokyo Bay, during October and November every year from 1997 to 2000. The experiment used collapsible pots of 5 mesh openings (21.0, 18.1, 15.5, 13.6 and 11.6 mm) and tube of 9.06 mm hole diameter as control gear. Result of this experiment indicated that pot of larger mesh size caught larger conger. Significant different was found in length distributions between the four years (ANOVA Test, P=1.9x10-45) and then the data were not combined for the analysis. In term of girth-perimeter ratio, R value of 50% retention and selection range were calculated to be 1.19 and 0.24 from estimated logistic parameters, (α,β)=(-10.67, 8.99). When catchability of tube was assumed to be 1, relative catchability of pot with 21.0, 18.1, 15.5, 13.6 and 11.6 mm mesh openings were 0.62, 0.79, 0.73, 0.63 and 0.51, respectively. This suggested that one tube could catch more conger eel than one pot and pot of larger mesh size was likely to catch of larger size more effectively.
THE EFFECT OF ABRUPT CHANGES IN SALINITY ON THE SFG OF THE MUSSELS Henna Rya A. Sunoko
JOURNAL OF COASTAL DEVELOPMENT Vol 1, No 1 (1997): Volume 1, Number 1, Year 1997
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Abstract

Mytilus edulis of over one year old were exposed to three different proportion of fresh and salt water for seven days. The objective of the study is to evaluate Scope For Growth (SFG), using the physiological responses of mussels as a potential monitor of the impact of environmental stresses. The feeding rates, respiration rates, food absorption efficiencies, and SFG of the mussels were measured following the seven day exposure period. Clearance rates relatively showed a small decrease with exposure to decreasing salinities, but it was not statistically significant. Absorption efficiencies of the mussels in the three groups were generally not different. Respiration rates among the three groups were not effected by, but changed consistently with increasing proportions of fresh water. The SFG among the three groups did not differ significantly by Anova, but the P value (0.069) is very close to the level considered significant (0.05). this study suggests that the decreasing salinity “stressed” the mussels.The selected raw materials, generally contains 10 essential amino acids (Arginine, lysine, histidine, phenylalanine, leucine, isoleucine, methionine, valine, threonine, and trypthophane) and a long chain of EFA (n-3 HUFA) and (n-6 HUFA) which are required by mud crab for their growth. The selected local raw materials are therefore nutritionally suitable for mud crab feed development in Central Java.

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