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INDONESIA
Journal of Indonesian Coral Reefs
Published by Universitas Hasanuddin
ISSN : 22524126     EISSN : -     DOI : -
Core Subject : Science, Education,
Earth & Planetary Sciences Other
Arjuna Subject : -
Articles 24 Documents
 1   2   3 
A Standard Criteria for Assesing the Health of Coral Reefs: Implication for Management and Conservation Zamani, Neviaty P.; Madduppa, Hawis H
Journal of Indonesian Coral Reefs Vol 1, No 2 (2011)
Publisher : Journal of Indonesian Coral Reefs

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Abstract

Coral reefs ecosystems are currently under high threat from human activities. LIPI (Indonesian Institute of Sciences) reported that only 5.2 % in 2006 of Indonesian coral reef (an area of 85.700 km2) is still considered in very good. Although these data are further need to be verified, but this can be as basic information that coral reefs in Indonesia need special attention and action. It is unfortunate that the current method to determine the health of reefs is limited. General practitioners are usually using a standard categorization by Yap and Gomez (1988). However, many drawbacks appeared of the use of this standard in Indonesia. This study aims to explore and evaluate the various standards in determining the health of coral reef, and formulate an easy and precise standard for practitioners. This study combines several standards of key parameters in coral reefs. The parameter that used in determining the health of reefs in this study is a combination of percent cover of live coral, algae and mortality index. The proposed criteria for health of coral reef as follows: excellent, good, fair, and poor. These criteria are expected to facilitate practitioner in evaluating the health of coral reefs in accurate and precise that is suitable for Indonesian coral reefs.
Assessing Ecological Resilience of Eastern Indonesian Coral Reefs Bahtiar, Imam; Damar, Ario; _, Suharsono; Zamani, Neviaty P
Journal of Indonesian Coral Reefs Vol 1, No 2 (2011)
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Abstract

Eastern Indonesian reefs are located on the CTI region, that understanding their ecological resiliencies are therefore very important for management of the region. Coral reef resilience was assessed using a resilience index on the 2009 Coremap data. Resilience index used in the assessment was developed by the author but published elsewhere. The study included 7 districts in eastern Indonesia: Pangkep (Pangkajene Kepulauan), Selayar, Buton, Wakatobi, Sikka, Raja Ampat and Biak. The results showed that coral reefs at Wakatobi had the highest average resilience indices, while Sikka had the lowest one. High resilience index at Wakatobi coincided with high number of coral functional groups (life forms) and coral cover. Low average resilience index at Sikka coincided with high algae and other fauna covers. Raja Ampat had coral reefs with a fair resilience index which is similar to coral reefs at Pangkep and Selayar.
Reef Landforms Identifications in Sikka, NTT Using Landsat Margery Asriningrum, Wikanti
Journal of Indonesian Coral Reefs Vol 1, No 1 (2011)
Publisher : Journal of Indonesian Coral Reefs

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Abstract

Information on condition and spatial distribution is essentially needed for better coral reef management. In order to provide the information, classifications of reeff morphology s is one way to obtain the physical condition of the reef. This method is relatively straightforward; with the means of remote sensing imageries, because the standard already exists. One of the challenges is what is the best way or detailed steps required to identify these highly variable objects. This exploratory research is aimed to develop identifications criteria of reef morphology s. Sikka district was chosen study area because it has some type of small islands with high diversity of reef morphology s. Each reef morphology s were analyzed to get a general habitat charasteristci which might be relevenat to coral reef management needs. Identificaton was performed visually with geomorphological approach. Indetifications result are qualitative, quantitative and spatial, and presented in teh forms of descrictive elaboration, tabular, and map
The Effects of Clove Oil in Color Changes and Zooxanthellae Density on Porites lobata Rahim, Sri Wahyuni; Nessa, M. Natsir; Trijuno, Dody D; Djawad, M. Iqbal
Journal of Indonesian Coral Reefs Vol 1, No 3 (2012)
Publisher : Journal of Indonesian Coral Reefs

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Abstract

Destructive fishing such as using cyanide in capture of ornamental fish has caused damage to the coral reefs, this is suggested the use of clove oil which considered eco-friendly fishing. This study aims to analyze the changes of color, zooxanthellae density and mitotic index of coral Porites lobata after exposure to several concentrations of clove oil. Experimental design was a factorial design, which consists of six concentrations and five time treatments with 3 replication. Coral was placed into the 1.0x0.5x1.0 m aquarium that contains clove oil solution in different concentrations (control, 20, 30, 40, 50, and 60 ppm) for 5 min and then transferred to a tank containing clean seawater for 60 seconds and then removed to tanks for the recovery process. Observation was made everyday for coral color changes in 17 days period and on day 1, 5, 9, 13 and 17 for zooxanthellae density and mitotic index.  The results showed that the were no changes in Porites lobata colors until the 17th day after exposure to 20–60 ppm of clove oil and there was no significant difference in the zooxanthellae density and mitotic index of the Porites lobata on concentration variation, while zooxanthellae densities and mitotic index showed significant difference on time (day) variation. This suggested that exposure to clove oil at  a concentration of 20–60 ppm did not affect the color change, zooxanthellae density and mitotic index of Porites lobata.
A Model for Estimating Coral Species Richness of Indonesian Coral Reefs Bahtiar, Imam; Budiyanto, Agus
Journal of Indonesian Coral Reefs Vol 1, No 1 (2011)
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Abstract

Marine biodiversity at species level is crucially important ini ecological  assessment and aceosystem management. Data on coral richness, however, are very race for many reefs in Indonesia, due to low number of available coral taxonomist in many provinces and districts. The objective of present sudy was to find a regression model for estimating species richness of Scleractinian corals, based on line-intercept-transect data. Wakatobi and Pangkep (Pangkajenne Kepulauan). The result showed that coral species richness can be estimated from three predictor variables: coral acroporiid covers (CAC), coral masive and submassive cover (CMS), and number of coral genera(CGR). Develop multiple regression model showed considerably high cooficient of determination (73.55%) in estimating coral species richness. Model validation using data from coral reefs on Lembaga waters showed that the model worked well, i.e. estimated and in situ recordered species richness are strongly correlated.
Coral Health and Disease in the Spermonde Archipelago and Wakatobi, Sulawesi Muller, Erinn M; Raymundo, Laurie J; Willis, Bette L; Hapkayla, Jessica; Yusuf, Syafyudin; Wilson, Joanne R; Harvell, Drew C
Journal of Indonesian Coral Reefs Vol 1, No 3 (2012)
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Abstract

Preliminary surveys for coral disease were conducted in October 2011 as part of the first Indonesian coral health workshop in Barranglompo Island, part of the Spermonde Islands, South Sulawesi, Indonesia. Previous coral disease surveys conducted in Wakatobi National Park (WNP), South-East Sulawesi in 2005 and 2007, and qualitative surveys in April 2011, are included here to provide an overview of what is known about coral disease in Sulawesi and to compare results with reports from other regions of the world. On all reefs surveyed in these two locations, levels of coral disease were relatively low compared with global averages from other locations. In preliminary surveys of Spermonde reefs, the most significant syndrome detected was white syndromes, which affected 13 different coral genera. The most significant syndromes detected in WNP were white syndromes, black band disease, and a yellow tissue discoloration syndrome that was similar macroscopically to Caribbean yellow band disease. Although overall coral disease prevalence was low in Barranglompo and WNP, there is the potential for greater impacts of coral disease as anthropogenic influences increase and the oceans continue to warm. This study provides preliminary baseline data on the impact of coral disease within the reefs of Sulawesi, Indonesia, the center of coral reef biodiversity.
Monitoring the Banggai Cardinalfish, an Endangered Restricted Range Endemic Species Moore, Abigail; Ndobe, Samliok; Zamrud, Muhammad
Journal of Indonesian Coral Reefs Vol 1, No 2 (2011)
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Abstract

In the marine reallm restricted range endemic species are rare. One such species which has attracted much attention is the Banggai cardinalfish (Pterapogon kauderni, Koumans 1933), often referred to as BCF, a coral reef associated fish endemic to shallow waters (0-5m) around the Banggai Archipelago, Indonesia. As in most of the Coral Triangle, these coastal waters are under heavy pressure from a variety of anthropogenic impacts. Traded as a marine ornamental, the IUCN Red-List places P. kauderni in the Endangered category with overexploitation and habitat degradation as the major threats. After the (unsuccessful) proposal for listing under CITES Appendix II in 2007, a national action plan (BCFAP) was developed and BCF conservation included in the Indonesian Coral Triangle Initiative National Plan of Action (CTI-NPOA). Monitoring is widely accepted as an integral part of effective management. The BCF-AP calls for biophysical and socio-economic monitoring of the Banggai cardinalfish trade, population and habitat to support the development of a sustainable ornamental fishery and ensure the conservation of the Banggai cardinalfish. Monitoring systems developed, activities undertaken and data produced are reviewed. Trends revealed by the data include a marked increase in compliance with current fish quarantine regulations, and other improvements in P. kauderni use patterns. Together with recent research, the data also reveal the need for an especial focus on key micro-habitat, Diadema urchins and sea anemones, which are under pressure from increasingly intensive harvesting. Monitoring systems are evaluated and suggestions for improving the usefulness and scope of monitoring activities are presented.
Coral Settelment on Concrete Artifical Reefs in Pramuka Island Eaers, Kepulauan Seribu, Jakarta and Management Option Aziz, Arif Miftahul; Kamal, Mohammad Mukhlis; Zamani, Neviaty Putri; Subhan, Beginer
Journal of Indonesian Coral Reefs Vol 1, No 1 (2011)
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Abstract

Latest stage development of recruit coral community in concerete artificial reefs were observed for nine months (from October 2009 to July 2010) by visual cencus and underwater photography methods. Amounts of 10 units of concrete artifical reef deployed in Pramuka Island waters and Gosong Pramuka in 2011 were used as an objects in this reseacrh. As a comparation, the conditios of coral coverand reef fishes in natural reef were observed by line intercept transcet, visual census, and underwater photography methods. In order to measure coral coberage area  we used a ImageJ 1.42q software. In march 2010, amounts of 457 coral colonies from 21 genera and 216 coral colonies from 16 genera were found on artifical reefs surface in Station 1 (Pramuka Island) and Station 2 (Gosong Pramuka) respectively. Number pf recruit coral colonies was dominated by genus Porites. Pocillopora, and Chypastrea. In july 2010, the precentage of coral cover on cencrete artifical refs reaches 41.46 ±13.37% (±SD) in Station 1 and 20. ±6.08% (mean ±SD) in Station 2, while the percentage of coral coverage on natural reefs were 23.14% and 40.43% in Station 1 and 2 respectively. Genus Porites become the most dominant genus in both of stations in terms recruit coloby abudance and percent cover. This result shows that concrete artificial reefs can effectively use to create new habitat of corals, coral fishes and other biota particularly in degraded coral reefs ecosystem.
A Community Initiative at Toli-toli Village, Regency of Konawe, Province of Southeast Sulawesi Yasir Haya, La Ode M.
Journal of Indonesian Coral Reefs Vol 1, No 3 (2012)
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Abstract

Giant clam (Tridacna sp) are one of the endangered species listed on the Red List of Threatened Species by the IUCN, which is grouped at CITES. In Indonesia, efforts to protect it have not beeneffective due to a lack of supervision and law enforcement support. The local community of Toli-toli in the Province of Southeast Sulawesi, has made efforts to save the species from exploitation and poaching. This effort was supported by the village head and the local community by the establishment the Giant Clam of Marine Protected Area (MPA). Data was collected by in-depth interviews and focus group discussions. The sampling consisted of the village head, community leaders, fishermen and clam conservation groups. Data analyses were performed using qualitative descriptive methods “ Analysis Individual Interest Matrix (AIIM) and Analysis Hierarchy Process (AHP) - to determine management priorities to protect the clams. The results show that through community-based management, a local village community accepts the establishment of the MPA. The total area reserved for this MPA was 60 hectares, spread over 4 sites of clam translocations. MPA management would have 5 priorities: formal legalization of MPA (0.281), zoning areas (0.253), management institution (0.181), community-based ecotourism (0.175), and development of alternative livelihoods (0.110). This model is an alternative one in the effort to protect clam species and to improve the coastal community welfare around the MPA sites. 
Coral Recruitment, Survival and Growth of Coral Species at Pari Island, Thousand Islands, Jakarta : A Case Study of Coral Resilience Abrar, Muhammad; Zamani, Neviaty P
Journal of Indonesian Coral Reefs Vol 1, No 1 (2011)
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Abstract

Research concerning survival and growth of coral recruits has been conducted in Pari Islands, Kepulauan Seribu, Jakarta , from March  to November 2010, which purpose to determined the effect of biotic and abiotic factors on coral recruitment survival and growth. We observed two life form of coral recruit, Massive and Branching within a transcect area of 2 meter x 70 meter at 5-7 meter depth. Furthermore, for each life form, the coral recruit was grouped in 3 classes, Small(<3cm), Medium (3-6 cm), and large (> 6 cm and 10cm) and all colonies were marked by plastic tag. Coral recruits in this study site were diverse with species diversity reaching 14 genera from 9 families, consisting of 9 genera at ST1-Pari site and 8 genera at ST2-Tikus Site which there were 2 genera founded at each site, Porites and Fungia, and genera of Faviidae were the most dominate, Diversity of coral recruits was moderate level with 1,85 diversity index at ST1-Pari Site and 1,59 at ST2-Tikus Site. The growth of coral recruitment was variated, according to the colony form and size class, which the highest growth of massive colonies to 4.4 mm/month in the small size and branching corals. Survival fo medium size colonies was lower compared to the other categories.

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