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All Journal JURNAL ILMIAH PLATAX
Rose O. S. E. Mantiri, Rose O. S. E.
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Environmental Science

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Mollusks attached to natural mangrove roots and silvofisheries in Nabire Papua: to what extent are they different Maitindom, Frits A; Mamangkey, Gustaf; Boneka, Farnis B. Boneka; Lasut, Markus T.; Mantiri, Rose O. S. E.; Bara, Robert. A.
Jurnal Ilmiah Platax Vol. 12 No. 2 (2024): ISSUE JULY-DECEMBER 2024
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jip.v12i2.57758

Abstract

The research aim on natural mangrove forests and silvofishery is to determine the community structure of attached invertebrates to silvofishery and natural mangrove ecosystems. I was comparing the community structure of attached invertebrates in mangrove silvofishery and natural mangrove ecosystems. Sampling was done by dredging the mangrove root skin, the collected samples were then sieved using a sieve with a mesh size of 1.0 mm using salted water and then put into sample bottles and preserved using 70% alcohol solution, then the samples were identified in the laboratory. The chemical physical parameters at both locations are within the normal range in the development of mangrove-attaching invertebrates. The two study sites contained 4 families (Potamididae, Littorinidae, and Muricidae) 7 species of which 3 species were in natural mangroves Littoraria scabra (Linnaeus, 1758), Nerita planospira (Anton, 1838), and Terebralia palustris (Linnaeus, 1767) compared to mangroves In Silvofishery there are 4 species of Chicoreus capicinus (Lamarck, 1822), Cerithidea quadrata (G. B. Sowerby II, 1866), Nerita picea (Recluz, 1841), and Cerithidea obtuse (Lamarck, 1822). The density of the mangrove-attaching anvertebtata in the mangrove forest of Sylvofishery was the highest, namely L. scabra (0.14 ind/m2 ) and the lowest was T. palustris (0.01 ind/m 2 ) Attachment invertebrate diversity at both study sites was in a low condition, and high dominance and uniformity. Keywords: Biofouling, artificial and Silvofishery, Nabire Abstrak Tujuan dari penelitian yang dilakukan pada hutan mangrove alami dan Silvofishery adalah Mengetahui struktur komunitas moluska pada ekosistem mangrove silvofishery dan mangrove alami. Membandingkan struktur komunitas moluska pada ekosistem mangrove silvofishery dan mangrove alami. Pengambilan sampel dengan mengkeruk kulit akar mangrove, sampel yang telah terkumpul kemudian dimasukan kedalam botol sampel dan diawetkan menggunakan larutan alkohol 70%, kemudian sampel diidentifikasi di Laboratorium. Parameter fisik kimia pada kedua lokasi dapat dikatakan dalam range yang normal dalam perkembangan moluska mangrove. Kedua lokasi penelitian terdapat 4 family (Potamididae, Littorinidae, dan Muricidae) 7 spesies dimana 3 spesies pada mangrove alami (Littoraria scabra (Linnaeus, 1758), Nerita planospira (Anton, 1838), dan Terebralia palustris (Linnaeus, 1767) sedangkan pada mangrove Silvofishery terdapat 4 spesies Chicoreus capicinus (Lamarck, 1822), Cerithidea quadrata (G. B. Sowerby II, 1866), Nerita picea (Recluz, 1841), dan Cerithidea obtuse (Lamarck, 1822). Kepadatan moluska mangrove pada hutan mangrove Sylvofishery tertinggi yaitu L. scabra (0,14 ind/m2 ) dan terendah yaitu T. palustris (0,01 ind/m 2 ) Keanekaragaman moluska pada kedua lokasi penelitian barada pada kondisi rendah, dan dominansi tinggi dan seragaman. Kata kunci: Moluska, Mangrove Alami dan Silvofishery, Nabire
Coral and Reef Fish Biodiversity in the Waters of Bangka Island, North Sulawesi Mantiri, Rose O. S. E.; Septianto, Andarum; Ridwan, Moh.; Suputri, Putu Ayu; Podung, Thania Theresia; Kalmareuro, Vennda Uno; Sumilat, Deiske A.
Jurnal Ilmiah PLATAX Vol. 14 No. 1 (2026): ISSUE JANUARY-JUNE 2026
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jip.v14i1.66620

Abstract

This study documents and identifies the diversity of coral reefs and reef fish species in the waters of Bangka Island, North Sulawesi, a coastal area rich in marine biodiversity and ecologically and economically important to the local community. The Underwater Visual Census (UVC) method was used through snorkeling and diving at depths of less than 18 meters at three locations (Coral Eye house reef, Tanjung Husi, and Linggua) from March 14 to April 4, 2025. Visual data were collected and identified in the Coral Eye Library. The results indicate that the coral reef ecosystem around Coral Eye is dominated by branching corals (Acropora) and stony corals (massive), which are important habitats for reef fish. The reef fish community is dominated by the families Pomacentridae and Chaetodontidae at depths of less than 20 meters. Fish were grouped into indicator fish (family Chaetodontidae with 6 species), target fish (5 families with 10 species, including Serranidae, Mullidae, Siganidae, Labridae, and Scaridae), and major groups (14 families with 34 species). This study provides strategic recommendations for maintaining and preserving coral reef ecosystems and reef fish diversity on Bangka Island. Keywords: Coral reefs; Reef fish; Bangka Island Abstrak.  Penelitian ini mendokumentasikan dan mengidentifikasi keanekaragaman terumbu karang dan spesies ikan karang di perairan Pulau Bangka, Sulawesi Utara, sebuah kawasan pesisir yang kaya akan keanekaragaman hayati laut dan penting secara ekologis serta ekonomis bagi masyarakat setempat. Menggunakan metode Underwater Visual Census (UVC) melalui snorkeling dan penyelaman pada kedalaman kurang dari 18 meter di tiga lokasi (Coral Eye house reef, Tanjung Husi, dan Linggua) dari 14 Maret hingga 4 April 2025. Data visual dikumpulkan dan diidentifikasi di Perpustakaan Coral Eye. Hasil penelitian menunjukkan bahwa ekosistem terumbu karang di sekitar Coral Eye didominasi oleh terumbu karang bercabang (Acropora) dan terumbu karang batu (massive), yang merupakan habitat penting bagi ikan karang. Komunitas ikan karang didominasi oleh famili Pomacentridae dan Chaetodontidae pada kedalaman kurang dari 20 meter. Ikan dikelompokkan menjadi ikan indikator (famili Chaetodontidae dengan 6 spesies), ikan target (5 famili dengan 10 spesies seperti Serranidae, Mullidae, Siganidae, Labridae, dan Scaridae), dan kelompok major group (14 famili dengan 34 spesies). Penelitian ini memberikan rekomendasi strategis untuk menjaga dan melestarikan ekosistem terumbu karang dan keanekaragaman ikan karang di Pulau Bangka. Kata kunci: Terumbu karang; Ikan karang; Pulau Bangka
Co-Authors Adnan Wantasen Agung B. Windarto, Agung B. Alam, Muhammad Reza Sinar Alex D. Kambey Alfret Luasunaung Anneke V. Lohoo Ari B. Rondonuwu Bara, Robert. A. Bilaleya, Iman Boneka, Farnis B. Boneka Buana, Muhammad Candra Dei, Katrin Dowena Deiske Adeliene Sumilat, Deiske Adeliene Frangky E. Kaparang Gustaf Mamangkey Janny D. Kusen Johnny Budiman Joice R.T.S.L Rimper Joshian N.W. Schaduw Kalmareuro, Vennda Uno Kepel, Rene Ch. Khristin I. F. Kondoy, Khristin I. F. Kondoy, Khristin F I. Lalita, Jans Lawrence J. L. Lumingas Lefrand Manoppo Leslida, Ayu Lumingas, Lawrence J. Maitindom, Frits A Mamuaja, Jane M. Mandagi, Stephanus Mandagi, Stephanus V. Manengkey, Hermanto Manoppo, Lefran Manurung, Nia Dopa Markus T. Lasut Menajang, Febry S. I. Moh. Ridwan, Moh. Nego E. Bataragoa, Nego E. Pesoth, Christianto Podung, Thania Theresia Rangan, Jety K. Rene Charles Kepel, Rene Charles Sambali, Haryani Septianto, Andarum Suputri, Putu Ayu Turangan, Septiara Tuyu, Adel M. Veibe Warouw Wenseslaus Fransiscus Makawaehe, Wenseslaus Fransiscus Wilhelmina Patty