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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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ECOLOGICAL ENERGETICS OF TROPICAL LIMPET Cellana testudinaria (Linnaeus, 1758) LIVING ON THE ROCKY SHORE OF OHOIWAIT, SOUTHEAST MOLUCCAS, INDONESIA Abraham S Khouw
JOURNAL OF COASTAL DEVELOPMENT Vol 11, No 2 (2008): Volume 11, Number 2, Year 2008
Publisher : JOURNAL OF COASTAL DEVELOPMENT

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Abstract

Study on ecological energetics of tropical limpet C. testudinaria has been carried out at approximatelyone year from October 2001 to September 2002. Population energy budgets estimated on theassumption of steady state conditions for C. testudinaria (Linnaeus, 1758) on the rocky shore ofOhoiwait, are presented. Large difference in population structure, and hence energetics, occurred atdifferent localities along the rocky shore. Relatively high proportions (98 %) of the assimilated energywas lost via metabolism. Assimilation efficiency is 39 %, net growth efficiency is 1.8 %, and ecologicalefficiency 0.3 %. Production (P), energy flow (A) and total energy consumption (C) were expressed asfunctions of animal size, in order to facilitate gross estimations of the energy component for which dataon size frequency and density are available.
EFFECT OF FLOW WATER VELOCITY ON HEMATOLOGY COMPONENT IN IMPROVING QUALITY OF TIGER GROUPER JUVENILE (Epinephelus fuscoguttatus) Marcelien Dj. Ratoe Oedjoe; E. Suprayitno; Aulanni' am; E.Y. Herawati
JOURNAL OF COASTAL DEVELOPMENT Vol 15, No 3 (2012): Volume 15, Number 3, Year 2012
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Abstract

The flow water velocity is closely correlated to oxygen  demand. Oxygen plays an important role as the indicator of fish blood. The objective of research is to acknowledge red blood cell, hematocrit, hemoglobin, and white blood cell of grouper larvae given with flow water velocity treatments.  Research begans from June 2011 to September 2011 at Lampung Marine Aquaculture Center. Juvenile with 7-9 cm length and 15-17 g/fish weight were tested using complete random design with three treatments of flow water  velocity, i.e. 1.25 m/sec (A), 1.00 m/sec (B), and 0.75 m/sec and control treatment. All treatments had 3 replications. Result of research indicates that flow water velocity had obvious effect on red blood cell, hematocrit, hemoglobin, and white blood cell. Red blood cell total was the highest in treatment of 1.25 m/second, counted for 2,922,666 cells/ml. It was  followed by treatment B with 2,816,000 cell/ml, treatment C with 2,763,000 cell/ml and control with 2,573,333 cell/ml.  The highest hemoglobin was found in treatment A, followed by B, C, and control treatments. The highest hematocrit rate was seen in treatment A, followed by B, C and control treatments. The highest white blood cell total was discovered in control, followed by C, B and A treatments.
INDONESIAN SEAS CEPHALOPODS : A COLLECTION OF FISHERIES LABORATORIES DIPONEGORO UNIVERSITY Abdul Ghofar
JOURNAL OF COASTAL DEVELOPMENT Vol 2, No 2 (1999): Volume 2, Number 2, Year 1999
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Abstract

A Study was conducted to describe the cephalopod fauna their regional distribution in the Indonesian seas. From specimen collection carried out since 1985 throughout the region, fourty four species were identified. The collection represents 11 loliginid squid, 3 sepiolids, 5 ommastrephids, 13 sepiids, 7 octopods, 2 argonautids,        2 nautiloids and 1 spirulid. Eleven identified species (or 25% of total) are evident to show a wide range of regional distribution, i.e. Loligo edulis, L. chinensis, L.duvauceli, L.sumatrensis, Sthenoteuthis oualaniensis, Sepioteuthis lessoniana, Abralia spaercki, Sepia latimanus, S.aculeata, S. pharaonis and Sepiella inermis,    
NATURAL CORAL COLONIZATION OF A MARINA SEAWALL IN SINGAPORE Chou Loke Ming; NG Chin Soon Lionel; Chan Sek Meng Jeremy; Seow Liyun Angie
JOURNAL OF COASTAL DEVELOPMENT Vol 14, No 1 (2010): Volume 14, Number 1, Year 2010
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Abstract

Marinas require extensive modification of a natural coast. The resulting modified habitat is known to supportchanged biological communities but the ability of tropical marinas to function as a surrogate habitat forscleractinian corals has not been well investigated. An assessment of scleractinian corals naturallycolonising a nine-year-old marina seawall in Singapore indicated 26 genera from 13 families, of whichPectinia and Turbinaria were the most dominant. Most colonies measured 10 – 25 cm in diameter. Reefs ofadjacent islands provided the larval source while the marina’s environmental conditions favored larvalrecruitment and growth. Specific larval settlement preferences as well as sediment rejection capabilities ofthe two most common genera could have contributed to their dominance. The study showed that the seawallof a marina can support scleractinian coral communities and with relevant management, can significantlyenhance marine biodiversity.
THE APPLICATION OF SILVOFISHERY ON TILAPIA (Oreochromis niloticus) AND MILKFISH (Chanos chanos) FATTENING WITHIN MANGROVE ECOSYSTEM OF THE NORTHERN COASTAL AREA OF SEMARANG CITY Rini Budihastuti; Sutrisno Anggoro; Suradi W. Saputra
JOURNAL OF COASTAL DEVELOPMENT Vol 16, No 1 (2012): Volume 16, Number 1, Year 2012
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Abstract

The most influencing area on the preservation of the coastal environment is mangrove forest. Mangrove ecosystem is interface between land and sea ecosystem, thus this ecosystem possesses specific function in that its continuity depends on dynamics occurred in the land and sea ecosystem. Mangrove ecosystem is one of several ecosystems in that it has high productivity that produces food resource for most of shore biota. Besides, from fishery side, mangrove also possesses role as spawning and nursery grounds. Nevertheless, the condition of mangrove in Indonesia is experiencing damage and width shortening. To hold the degradation speed of mangrove forest, one appropriate effort could be silvofishery. Silvofishery in an integrated activity between brackish water fishery and mangrove forest cultivation at the same location. The research was completed in northern coastal area of Mangunharjo Sub-district, Tugu district, Semarang City. The purpose of the research was to review the most appropriate mangrove type and appropriate cultivated species for silvofishery for maximized result. The method of research action was completed upon multivariate experiment, consisted of 2 factors, which were mangrove vegetation (Avicenia marina and Rhizopora mucronata) and 2 types of cultivated species of tilapia (Orechromis niloticus) and milkfish (Chanos chanos) and with 2 times repetition. Based upon the data obtained, it can be concluded to develop optimal silvofishery were R. mucronata with milkfish cultivated species and A. marina with tilapia cultivated one.
THE COMBINATION OF FISH MEAL, SOYBEAN MEALS AND DEHULLED LUPIN IN FISH FEED AND THEIR EFFECTS ON THE GROWTH OF RED TILAPIA (Oreochromis niloticus) J.H. Hutabarat
JOURNAL OF COASTAL DEVELOPMENT Vol 3, No 1 (1999): Volume 3 Number 1 Year 1999
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Abstract

The amis of the study were to determine the combination of fish meal, soybean meals, and dehulled lupin meal in fish feed and their effects on the growth and survival rate of Oreochromis niloticus. There treatments at different substitution levels of lupin dehulled meals to the soybean meals as main source of plant protein i.e 50% of soybean meals+ 50% fish meals (A), 50% Fm + 25% SB + 25% Lm (B) and 25% FM + 25% SB + 25% LM (C) were adopted in this study. The red tilapia (Oreochromis niloticus) with initial weight ranging from 238,67 – 239,65 g/fish with stocking density of 150 fish per cage were used as experimental fish. The study was conducted in Rawa pening Lake, Ambarawa – Central Java, from December 1998 to March 1999. The results indicated that different combination of duhulled lupin and soybean as plant protein source in fish feed had significantly affected (P<0,05) the absolute growth and NPU, and hat not significantly affected the daily growth rate, FCR, SR, and PER. The best absolute growth (292,05g), daily growth rate (1,34%/day), FCR (2,31), PER (1,68) and NPU (8,37), were achieved by treatment B, followed by C and A. meanwhile, the best SR was achieved by treatment C and followed A, and B. Therefore, treatment B appeared to be the best fish feed formulation for Red tilapia production.
COMPARASION OF LUPIN MEAL BASED DIETS COST EFFICIENCY FOR JUVENILE Penaeus monodon TESTED UNDER POND CONDITIONS Agung Sudaryono
JOURNAL OF COASTAL DEVELOPMENT Vol 8, No 1 (2004): Volume 8, Number 1, Year 2004
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Abstract

A comparison of the cost efficiency of the formulated diets for juvenile Penaeus monodon in which fish meal or fish meal and soybean meal mixture were substituted with lupin (Lupinus angustifolius) meal at different levels has been conducted and is described in this study. The method used in the study was to estimate the relative economic performance for each dietary treatment using cost efficiency analysis equations. All diets containing different levels of lupin meal (0-30% and 0-48%) were compared in terms of total feed cost to determine the most cost-effective lupin meal based diet for juvenile Penaeus monodon reared in pens under pond conditions. The results show that inclusion of lupin meal at a level of 30% that substitute 75% of fish meal protein in D4 formulation saved 18% in price in Australia and 11% in price in Indonesia when compared with D1 with no lupin meal. Diet D9 including 48% of lupin meal to substitute 75% of a mixture of fish meal and soybean meal saved 21% in price in Australia and 14% in price in Indonesia when compared with D6 with no lupin meal. it is concluded that diets D4 and D9 containing 30% and 48% dehulled lupin (L. angustifolius) meal as a replacement of 75% protein of fish meal and the mixture of fish meal and soybean meal, respectively can be considered as the most economical and profitable diets with an acceptable level of production for semi-intensive pond culture of P. monodon stocked at a level of 10 animals/m2.
PROFILES OF ENFORCEMENT AND SURVEILLANCE IN JAVA SEA FISHERIES: A CLOSER LOOK AT THE CIRCUMSTANCES OF PEMALANG AND DEMAK REGENCIES Indah Susilowati
JOURNAL OF COASTAL DEVELOPMENT Vol 5, No 3 (2002): Volume 5, Number 3, Year 2002
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Abstract

Compliance is necessary for successful management of the fisheries. In fact, to secure compliance, enforcement and surveillance, which are quite costly, are needed . It is realized that enforcement inputs in Indonesia is limited and not sufficient to watch the waters of this country. Therefore, it needs a lot of effort to improve the enforcement and surveillance schemes. It is necessary to find out new alternatives or paradigms of  monitoring, controlling and surveillance (MCS) in such a way in order to ensure the sustainability of the fisheries resource.
A STUDY ON ASSEMBLAGE OF INVERTEBRATES INHABITING ROCKY SHORES WITHIN THE PORT- LIMIT OF PORT- LOUIS, MAURITIUS Julia Charles; Chandani Appadoo; Asha Poonyth Poonyth
JOURNAL OF COASTAL DEVELOPMENT Vol 14, No 2 (2011): Volume 14, Number. 2, Year 2011
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Abstract

Rocky shores provide an important habitat for marine organisms. This study aimed at providing baseline data on assemblage of organisms on rocky shores within the port-limit of Port-Louis, Mauritius. Four rocky shores, with three at Pointe aux Sables (La Pointe1, La Pointe2, and Petit Verger) and one at Baie du Tombeau were studied from October 2007 to February 2008. On each site three stations, located at intervals of 2m, with an area of 40m2 each were set up. Intertidal organisms were hand-collected within forty-eight, 1m2 quadrat for invertebrates. Observations of 16,061 specimens led to identification of 30 faunal species belonging mostly to phyla Mollusca and Arthropoda. Mean total abundance of invertebrates per 1m2 varied from 729.22±173.07 at la Pointe2 to 143.97±11.43 at Baie du Tombeau. The gastropod, Planaxis sulcatus was the most abundant species at La Pointe1 and Petit Verger with mean abundance of 196.86±179.71 and 168.10±113.44 per 1m2 respectively. The bivalve, Modiolus auriculatus was the dominant species with mean abundance of 673.33±762.04 per 1m2 at La Pointe2 and Nerita punctata was most abundant (39.41±57.35 per 1m2) at Baie du Tombeau. Lowest Shannon diversity was observed La Pointe 2. The study is useful for future work on port area.
THE EFFECT OF CHITOSAN CONCENTRATION AND STORAGE TIME ON THE QUALITY OF SALTED-DRIED ANCHOVY (Stolephorus heterolobus) Tri Winarni Agustini; Sri Sedjati
JOURNAL OF COASTAL DEVELOPMENT Vol 10, No 2 (2007): Volume 10, Number 2, Year 2007
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Abstract

The use of chitosan as preservative agent in fish processing had been conducted for some reasons for example its usage as food additive that can prevent microbial growth, as antioxidative agent, and, to some extent to produce safe food. This research studied the application of chitosan on salted-dried anchovy (S. heterolobus) preservation during storage at room temperature. The aims of this research were to know the effect of treatment (chitosan concentration and storage time) on the quality of salted-dried anchovy (bacterial count and organoleptic test). The experimental design used was Split plot in time design and using Randomized Complete Block with two factors. The first factor was chitosan concentrations (0,0%; 0,5%; 1,0%) while the second factor storage time (0; 2; 4; 6; 8 weeks). The results indicated that chitosan concentration and storage time significantly reduced the total bacterial count (p<0,01) but not significantly different (p>0,05) for organoleptic test. The interaction of chitosan concentration and storage time significantly influenced the total bacterial count (p<0,01).

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