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All Journal Techno: Jurnal Penelitian Jurnal Bioedukasi AGRIKAN Jurnal Ilmiah Agribisnis dan Perikanan Buguh: Jurnal Pengabdian Kepada Masyarakat Agrikan: Jurnal Agribisnis Perikanan
Mesrawaty Sabar
Universitas Khairun
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Education Environmental Science Languange, Linguistic, Communication & Media Social Sciences Other

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Journal : Agrikan: Jurnal Agribisnis Perikanan

 1 
Composition and Condition of Mangrove Forest in Tarnana Island Subdistrict South Jailolo, North Maluku Province Adi Noman Susanto; Salim Abubakar; Mesrawaty Sabar; Sunarti Sunarti; Yuyun Abubakar
JURNAL AGRIKAN (Agribisnis Perikanan) Vol 14 No 1 (2021): Agrikan: Jurnal Agribisnis Perikanan
Publisher : Fakultas Pertanian, Universitas Muhammadiyah Maluku Utara

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Abstract

The research objectives were to know the composition of mangrove species, to determine the structure of the mangrove forest community (species diversity, species dominance, uniformity, species density, species cover) and to determine the condition of mangrove forests on Tarnana Island, Jailolo Selatan District. This research was conducted on Tarnana Island, Jailolo Selatan District, and West Halmahera Regency in January - February 2021. The sampling method was carried out using the spot check method. Sampling was carried out at the lowest tide by using 5 line transects and each line transect placed 5 plots. Data analysis included species diversity, species dominance, uniformity, species density and species cover. The composition of mangrove species on Tarnana Island was obtained as many as 8 species, namely Rhizophora apiculata, R. stylosa, Bruguirea gymnorrhiza, Ceriops decandra, Ceriops tagal, Sonneratia alba, Xylocarpus granatum and Avicennia alba. The structure of the mangrove community has moderate species diversity, no dominant species and moderate uniformity. The condition of the mangrove forest on Tarnana Island is in the damaged category with rare density.
Mangrove Species Density and Dynamics of Nitrate (NO3) on Sediments in the Manumadehe Island, South Jailolo District, West Halmahera Regency Mesrawaty Sabar; Ardan Samman; Rugaya H. Serosero; Masykhur Abdul Kadir
JURNAL AGRIKAN (Agribisnis Perikanan) Vol 15 No 2 (2022): Agrikan: Jurnal Agribisnis Perikanan
Publisher : Fakultas Pertanian, Universitas Muhammadiyah Maluku Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52046/agrikan.v15i2.1216

Abstract

Mangroves is one of the producers of nutrients, one of which is nitrate in estuary waters. Nitrate content in waters naturally comes from weathering or decomposition of plants and the remains of dead organisms. This study aims to analyze the relationship between mangrove density and nitrate in the mangrove ecosystem on Manomadehe Island, South Jailolo, West Halmahera. Data collection was carried out from April to May 2022. Analysis of sediment samples was carried out at the LPPM Basic Laboratory, Khairun University. The data analysis method used is simple linear regression. The results of the analysis of the highest species density at ST3 were 4100 trees/ha-1 and the lowest was ST1 at 1900 trees/ha-1. The highest nitrate concentration was found at ST3 at 3.58 mg/kg and the lowest at ST1 at 0.83 mg/kg. The strong ridge pattern (r) between the variable density and the nitrate concentration was 88.90%. The regression coefficient of 1.8998 indicates that the density of species has a positive relationship with the average concentration of nitrate in the sediment, where every 1 unit decreases in the value of mangrove species density will affect the decrease in the average nitrate of -1.33812 units.
Co-Authors Abubakar, Salim Adi Noman Susanto Adi Noman Susanto Ardan Samman Darmawaty Darmawaty Eko S. Wibowo Fajria Dewi Salim Inayah Inayah Masykhur Abdul Kadir Nebuchadnezzar Akbar Rina Rina Rina Rina Riyadi Subur, Riyadi Rugaya H. Serosero Sabilu, Kadir Sri Endah Widiyanti Widiyanti Sunarti Sunarti Sunarti Sunarti Yuyun Abubakar Yuyun Abubakar