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All Journal International Journal of Science and Engineering (IJSE)
Anugrah A Budiarsa
Fisheries and Marine Science Faculty of Mulawarman University, Kampus Gunung Kelua Samarinda, East Kalimantan
Engineering

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Community Structure of Macrozoobenthos in Mangrove Ecosystem, Kutai National Park, East Kalimantan Anugrah A Budiarsa; Samsul Rizal
International Journal of Science and Engineering Vol 7, No 1 (2014)
Publisher : Chemical Engineering Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (988.287 KB) | DOI: 10.12777/ijse.7.1.91-94

Abstract

Mangrove forest in Kutai National Park (KNP) is considered as nature-protected ecosystem. This forest ecosystem has high productivity ecosystem roles as feeding source, spawning and conservation area for water organism living in this surrounding area such as fishes, crustacean, mollusk and others. At the mangrove floor, mangrove is a benthic ecosystem that utilizes organic material either produced from mangrove itself or land sedimentation. This research was conducted using quadrant transect method with 10 observation stations. Collected data were identified, summed and analyzed. Community structure was analyzed by determining the diversity index, homogenous index and dominant index. The research showed that Makrozoobenthos found at the research location was 17 species which divided into 12 families and 3 classes. The smallest number was found in Lombok Bay (station number 8) with 6 species. The largest number was found in Perancis Cape (station number 9) with 15 species. The diversity index of community structure ranged from 1,7 to 2,4. This indicated that the community diversity was at moderate level (1,5<N<3) with good homogenous index 0,8-1
Condition and The Affecting Factors of Tanjung Jumlai Patch Reef in North Penajam Paser Regency East Kalimantan Muchlis Efendi; Sahat Hutahaean; Anugrah A Budiarsa; T Hanjoko
International Journal of Science and Engineering Vol 7, No 1 (2014)
Publisher : Chemical Engineering Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (732.037 KB) | DOI: 10.12777/ijse.7.1.95-99

Abstract

Patch reef of Tanjung Jumlai which located in North Penajam Paser Regency, East Kalimantan Province has being suffered from stress and degradation, less studied and managed. Thus, this research was conducted to obtain data concerning on the reef condition and the affecting factors. The research was carried out from December 10 – 14, 2013. There were eight observation stations that surveyed using life form line intercept transect method to obtain data related with coral reef condition based on percent cover of live coral (LC) and coral mortality index (MI). The result showed that the lowest LC was 5% at ST 7 (poor/bad coral condition) and the highest LC was 78% (excellent condition), and the average LC was 42.5% (fair/moderate condition). The average coral mortality index was 0.34 with the lowest MI was 0.06 at ST 6 and the highest MI was 0.78 at ST 7. This study also found that anthropogenic factors (mainly from Balikpapan Bay) were more influential toward the reef condition of Tanjung Jumlai patch reef rather than non-anthropogenic factors.
Co-Authors Muchlis Efendi Sahat Hutahaean Samsul Rizal T Hanjoko