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STUDI KONEKTIVITAS Lutjanus gibbus PADA DAERAH KONSERVASI DAN DAERAH PENANGKAPAN DI WILAYAH PENGELOLAAN PERIKANAN NEGARA REPUBLIK INDONESIA (WPP-NRI) 714 DENGAN MENGGUNAKAN DNA BARCODING Limmon, Gino V; Tetelepta, Johannes M S; Pattikawa, Jesaja A; Natan, Juliana; Laimeheriwa, Bruri M; Leatemia, Brigitha M
TRITON: Jurnal Manajemen Sumberdaya Perairan Vol 20 No 1 (2024): TRITON: Jurnal Manajemen Sumberdaya Perairan
Publisher : Departement of Aquatic Resources Management, Fisheries and Marine Science Faculty, Pattimura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/TRITONvol20issue1page16-27

Abstract

Reef fish utilisation due to high demand has increased to over exploited in the Republic of Indonesia’s Fisheries Management Area (FMA-RI) 714. Lutjanus gibbus is one of the target reef fish species that is commonly fished because it’s high commercial value. This study aimed to analyse the diversity of genetic, variation of population characters and connectivity of L.gibbus in the conservation areas and fishing areas in Ambalau, Banda dan Kei in FMA-RI 714 using DNA barcoding. The reconstruction of phylogenetic trees from three populations of L. gibbus has shown the close genetic supported by the acquisition of small genetic distances with a range from 0.000 to 0.0164. The highest genetic diversity (Hd) ranges from 0.9 to 1.0 and the nucleotide diversity ranges from (π) 0.00325-0.00921, indicate the population of Ambalau Island, Banda and Kei has a high genetic diversity. Analysis of Fixation index (Fst) ranges from -0.20370 to -0.06965, the negative value indicates that the three population did not experience genetic differentiation due to gene flow. This causes close relationships between populations, so that due gene variation between population becomes low and mixing occurs population. L.gibbus connectivity shows the presence of gene flow in all three of these population. ABSTRAK Akibat tingginya permintaan maka tingkat pemanfaatan ikan karang menjadi over exploited di WPP-NRI 714. Lutjanus gibbus merupakan salah satu jenis ikan karang target yang umumnya ditangkap karena memiliki nilai komersial yang tinggi. Penelitian ini bertujuan untuk menganalisa keragaman genetik, struktur populasi serta konektivitas populasi L.gibbus pada daerah konservasi dan daerah penangkapan di Ambalau, Banda dan Kei pada WPP-NRI 714 dengan menggunakan DNA barcoding. Hasil penelitian melalui rekonstruksi pohon filogenetik dari tiga populasi L. gibbus menunjukkan adanya kedekatan genetik yang didukung dengan perolehan jarak genetik yang kecil dengan kisaran nilai antara 0.000-0.0164. Nilai keragaman haplotipe (Hd) berkisar antara 0.9-1.0 dan keragaman nukleotida (π) berkisar antara 0.00325-0.00921, menunjukkan bahwa populasi Ambalau, Banda dan Kei memiliki keragaman genetik yang tinggi. Hasil analisis Fixation index (Fst) berkisar antara -0.20370 hingga -0.06965, nilai negatif tersebut mengindikasikan bahwa antar ketiga populasi tidak mengalami diferensiasi genetik karena adanya aliran gen. Hal ini menyebabkan kekerabatan antar populasi dekat sehingga variasi gen antar populasi rendah dan terjadinya percampuran antar populasi. Konektivitas L.gibbus pada seluruh populasi menunjukkan bahwa adanya aliran genetik pada ketiga populasi. Kata Kunci: Lutjanus gibbus, konektivitas populasi, analisa filogenetik, WPP-NRI 714, DNA barcoding
Marine gastropod at the intertidal zone of Rutong Village, Ambon Island as an indicator of water quality Haumahu, Sara; Uneputty, Prulley A.; Natan, Juliana
Jurnal Pengelolaan Lingkungan Berkelanjutan (Journal of Environmental Sustainability Management) JPLB, Vol 8, No 3 (2024)
Publisher : Badan Kerjasama Pusat Studi Lingkungan (BKPSL) se-Indonesia bekerjasama dengan Pusat Penelitian Lingkungan Hidup IPB (PPLH-IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36813/jplb.8.3.276-294

Abstract

Studies on marine gastropod diversity as an indicator of water quality in Maluku province are rare. The research objectives are to study marine gastropod species composition and analyze its ecological density, abundance and frequency of occurrence, as well as to analyze an ecological index at the intertidal zone of Rutong village, Ambon Island, Maluku. 53 species of marine gastropods found in the intertidal zone, belonging to 41 genera, 22 families and 6 order. Muricidae, Neritidae and Tegulidae were marine gastropod families with higher ecological density and abundance. Some dominant species known as key species in this region were Nerita spatula, Rochia nilotica, Tenguella granulate, Nassarius pullus, Clypeomorus battilariaeformis, Monetaria annulus, Monodonta calanifera and Conus miles. Generally, the species of marine gastropods in this study area have limited distribution. Shannon-Wiener diversity index (H`) of marine gastropods is in a medium to high category, which varies between 1.56 to 3.46. Meanwhile, Pielou’s evenness index (J`) is in the stable category, in which the value was from 0.61 to 0.95 Whereas, Simpson's dominance index varied from 0.05-0.30, which is in the low category. The coastal water of Rutong village can be categorized as moderately polluted waters to unpolluted waters.
Correlation of some water quality parameters and Pb in sediment to gastropod diversity in Ambon Island Waters Natan, Juliana; Hendrika, Nova; Limmon, Gino V; Rahman, Rahman
Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Vol 13 No 4 (2023): Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (JPSL)
Publisher : Pusat Penelitian Lingkungan Hidup, IPB (PPLH-IPB) dan Program Studi Pengelolaan Sumberdaya Alam dan Lingkungan, IPB (PS. PSL, SPs. IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jpsl.13.4.656-670

Abstract

The coastal waters of Ambon Island have quite diverse ecosystems that allow for the presence of various organisms, one of which is gastropods. This study aims to analyze the correlation of some water parameters and Pb in sediment to the diversity of gastropods. The research method was carried out by observing the density, water quality parameters, and Pb metal in sediments. Water parameters were measured in situ and analyzed in the laboratory. The distribution of gastropods was analyzed through Principal Component Analysis (PCA). At the same time, the correlation analysis was carried out using the Pearson correlation approach using SPSS v.16. The results showed that the types of gastropods with the highest density in the waters of Ambon Island were Terebralia sulcata, Hebra corticata, and Nerita patula. While the species with the lowest density value were Nassarius olivaceus, Polinices didyma, Lunella cinerea, Conus eburneus, Cypraea isabella, Vexillum plicarium, and Columbella scripta. The Shannon-Wienner Diversity Index ranges from 1.253–2.622, and the diversity index ranges from 0.083-0.207. It was included in the low category caused by the disturbance of water pollution and Pb metal in sediments. Meanwhile, the dominance index ranged from 0.098 to 0.511 indicating species dominance at several observation stations. The waters' physical-chemical parameters strongly correlating with gastropod diversity are DO and Pb, with respective correlation values ​​of r = 0.656 and r = -0.785.
Model Dinamika Estimasi Biomassa dan Stok Karbon Tegakan Atas Sonneratia alba di pesisir Kabupaten Muna Barat Rahman, Rahman; Natan, Juliana; Fakaubun, Fahrul Rozy; Supusepa, Junita; Lokollo, Frijona F.; Hulopi, Mahriyana
Journal of Coastal and Deep Sea Vol 2 No 1 (2024): Journal of Coastal and Deep Sea
Publisher : Pattimura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/jcds.v2i1.13369

Abstract

Penelitian ini bertujuan untuk merumuskan model dinamika estimasi biomassa dan stok karbon tegakan atas pada spesies Sonneratia alba di Pesisir Kabupaten Muna Barat. Penelitian dilakukan melalui pengukuran laju pertumbuhan diameter selama tahun 2019 dan merekonstruksi beberapa model allometrik estimasi biomassa. Hasil penelitian menunjukkan bahwa model dinamika estimasi biomassa, stok karbon, dan CO2-equivalen pada spesies Sonneratia alba yaitu Bt = 0,186 (0,031t + 0,587)2,46, Ct = 0.087 (0,031t + 0,587)2.46, dan CO2t = 0.319 (0,031t + 0,587)2.46. Model tersebut memiliki nilai yang relevan dengan model estimasi biomassa dari peneliti lainnya yaitu B = 0,251 ρ (D)2,46 dengan nilai ρ = 0,74 g/cm3. Hasil perhitungan total biomass, stok karbon dan serapan karbon pada Sonneratia alba (d = 20,46 cm, K = 209 pohon/ha,umur = 50 tahun) yaitu masing – masing 308,27 kg/pohon, 143,37 kgC/pohon, dan 525,68 kgCO2/pohon atau 64,43 ton/ha, 30,16 tonC/ha, dan 110,58 tonCO2/ha.
PENGENALAN SUMBERDAYA LAUT DAN SUMBERDAYA MOLUSKA BAGI SISWA USIA DINI DI SEKOLAH DASAR NEGERI 2 OMA, KECAMATAN PULAU HARUKU KABUPATEN MALUKU TENGAH Haumahu, Sara; A. Uneputty, Prulley; Kesaulya, Irma; Natan, Juliana; A. Tuapattinaja, Maureen
HIRONO : Jurnal Pengabdian Masyarakat Vol 2 No 2 (2022): 2022 Oktober
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat Universitas Hein Namotemo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55984/hirono.v2i2.102

Abstract

People's awareness of the marine environment should be started by the student in Elementary School. The public service program was conducted to increase student knowledge of the marine environment and the fisheries resources and also to protect that. This program consists of giving a lecture,  discussion, and evaluation to the student of SD Negeri 2 Oma, Haruku Island Regency, Central Maluku. The topics consist of the marine environment and the importance of this environment, types of the shore, marine mollusc resources (definition and clasification), economically important molluscs, marine Gastropoda which consumed by local people, and how to protect the marine environment and its resources. Based on the evaluation, student knowledge increased from <30% before socialization to >90% after socialization. It means that education processes for the elementary student about the problems of the marine environment and its resources increase significantly, and need more information on other marine resource.