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All Journal Jurnal Teknologi Perikanan dan Kelautan Jurnal Pengolahan Hasil Perikanan Indonesia Jurnal Ilmu dan Teknologi Kelautan Tropis ILMU KELAUTAN: Indonesian Journal of Marine Sciences Jurnal Kelautan Tropis Aceh Journal of Animal Science JURNAL ENGGANO Jurnal Sumberdaya Akuatik Indopasifik JFMR (Journal of Fisheries and Marine Research) Omni-Akuatika Jurnal Ilmu Kelautan Kepulauan Jurnal Risalah Kebijakan Pertanian dan Lingkungan Depik Jurnal Ilmu-Ilmu Perairan, Pesisir dan Perikanan Policy Brief Pertanian, Kelautan, dan Biosains Tropika Depik Jurnal Ilmu-Ilmu Perairan, Pesisir, dan Perikanan Journal of Fisheries & Marine
Dondy Arafat
Departemen Ilmu Dan Teknologi Kelautan, Fakultas Perikanan Dan Ilmu Kelautan Institut Pertanian Bogor (IPB), Bogor 16680
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Engineering Environmental Science Immunology & microbiology Library & Information Science Social Sciences Other

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POLA KEANEKARAGAMAN DAN DISTRIBUSI SPESIES IKAN TERUMBU MENGGUNAKAN ENVIRONMENTAL DNA (eDNA) METABARCODING PADA JARAK LONGITUDINAL DARI TELUK JAKARTA Sani, Lalu M Iqbal; Benyamin, Azhari; Husna, Alief K; Arafat, Dondy; Subhan, Beginer; Sunuddin, Adriani; Cakasana, Nadya; Lestari, Dea Fauzia; Madduppa, Dr. Hawis
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 13 No. 3 (2021): Jurnal Ilmu dan Teknologi Kelautan Tropis
Publisher : Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jitkt.v13i3.37971

Abstract

Keberadaan ikan terumbu tentunya erat kaitannya dengan keberadaan terumbu karang karena ekosistem tersebut merupakan habitat bagi ikan karang. Terumbu karang merupakan ekosistem yang banyak terdapat di pulau-pulau kecil di daerah tropis termasuk Kepulauan Seribu. Kepulauan Seribu adalah sekelompok 110 pulau yang terletak di lepas pantai Jakarta dan hingga 80 kilometer sebelah utara Laut Jawa. Dalam studi ini, kami meneliti distribusi spesies dan keanekaragaman spesies ikan terumbu pada dua lokasi yaitu Pulau Untung Jawa dan Pulau Harapan yang berbeda jarak di Teluk Jakarta menggunakan analisis metabarcoding DNA lingkungan (eDNA). Sebanyak 4 liter sampel air laut dikoleksi pada kedalaman 8-9 meter per lokasi lalu dilakukan analisis menggunakan primer spesifik (MiFish U) dengan marka 12s rRNA. Secara keseluruhan, kekayaan spesies yang lebih tinggi ditemukan di Pulau Harapan (52 spesies) diikuti oleh Pulau Untung Jawa (11 spesies). Indeks Shanon-Wiener juga menunjukkan bahwa Pulau Harapan memiliki keanekaragaman ikan terumbu yang lebih tinggi berdasarkan tiga tingkatan taksonomi (famili, genus, dan spesies). Hanya ada lima spesies ikan terumbu mutual yang ditemukan di dua lokasi tersebut, yakni Atherinomorus aetholepis, Auxis thazard, Cephalopholis sexmaculata, Epinephelus chlorostigma, dan Plectropomus areolatus. Hasil temuan dalam penelitian ini sejalan dengan perbedaan antropogenik dimana Pulau Untung Jawa lebih dekat dengan Teluk Jakarta dibandingkan dengan Pulau Harapan yang letaknya relatif jauh dari Teluk Jakarta.
Mengungkap Aspek Biologi dan Emergence Point Hiu Berjalan Halmahera (Hemiscyllium halmahera) di Laut Pulau Maitara Maluku Utara Indonesia Akbar, Nebuchadnezzar; Ismail, Firdaut; Siolimbona, Abdul Ajiz; Tahir, Irmalita; Paembonan, Rustam E; Subhan, Beginer; Arafat, Dondy; Baksir, Abdurrachman; Subur, Riyadi; N, Furqan; Yidoatimojo, Sudibyo; Nurjaya, I Wayan; Restu, Yunan Gilang; N Natih, Nyoman Metta; Hari, Restu Fajar; Bengen, Dietriech G.
Jurnal Kelautan Tropis Vol 28, No 3 (2025): JURNAL KELAUTAN TROPIS
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jkt.v28i3.28334

Abstract

The Halmahera Walking Shark (Hemiscyllium halmahera) is an endemic marine biota in the Halmahera Sea. This species has a local migration pattern and is territorial. The distribution of this species is in the intertidal area to a depth of 10-15 meters. Previous studies have shown that this species is spread across several islands in the North Maluku Islands. Maitara Island is a small island located between the North Maluku archipelago. The Halmahera Walking Shark species is also found on this island. Information on the Halmahera Walking Shark species is not fully documented. The purpose of the study is related to biological information and emergence points (emergence points) in the Maitara Island Sea. Data collection was carried out on coral reefs, seagrass and mangroves. Samples were captured and morphometric measurements, weight and sex observations were taken. The sea area where the species was found was used to obtain coordinates for the emergence point. An analysis of length-weight relationship data was carried out to see growth patterns. The study found that morphometric measurements varied among individuals, although there were general similarities. Sexes were found in pairs (Male and Female), indicating that proportions and mating were still normal in nature. The habitat of this species is found in the mangrove area, coral reefs, and seagrass, thus describing that there is an association in nature. The emergence point shows that the Halmahera Walking Shark is found along the coast of Maitara Island although the frequency of the number is different. The length-weight relationship found a negative allometric growth pattern. Information on biological aspects and emergence points is important, to be used as a reference for migration areas and habitats for the interests of species, waters, and ecosystem conservation.  Hiu Berjalan Halmahera (Hemiscyllium halmahera) merupakan biota laut endemik di laut Halmahera. Spesies ini memiliki pola migrasi lokal dan bersifat teritorial. Penyebaran spesies ini di wilayah intertidal hingga kedalaman 10-15 meter. Penelitian terdahulu menunjukan bahwa spesies ini tersebar di beberapa pulau di Kepulauan Maluku Utara. Pulau Maitara merupakan pulau kecil yang terletak diantara gugusan kepulauan Maluku Utara. Pulau ini juga ditemukan speises Hiu Berjalan Halmahera. Informasi belum terekam lengkap terkait spesies Hiu Berjalan Halmahera. Tujuan penelitian terkait informasi biologi dan emegence point (titik kemunculan) di Laut Pulau Maitara. Pengambilan data dilakukan di terumbu karang, lamun dan mangrove. Sampel ditangkap dan diambil ukuran morfometrik, berat dan pengamatan kelamin. Area laut ditemukannya spesies diambil koordinat untuk di jadikan sebagai titik kemunculan.  Analisis data hubungan panjang-berat dilakukan untuk melihat pola pertumbuhan. Hasil penelitian ditemukan ukuran morfometrik bervariasi pada setiap individu, meskipun terdapat kemiripan secara umum. Kelamin ditemukan sepasang (Jantan dan Betina), dengan demikian menunjukan proporsi dan perkawinan masih normal di alam. Habitat tertangkap spesies ini di area mangrove, terumbu karang dan lamun, sehingga mendeskripsikan terdapat asosiasi di alam. Titik kemunculan menunjukan bahwa, Hiu Berjalan Halmahera ditemukan di sepanjang pesisir laut Pulau Maitara meskipun frekuensi jumlah berbeda. Hubungan panjang berat menemukan pola pertumbuhan allometrik negatif. Informasi aspek biologi dan emergence point penting, untuk dapat dijadikan rujukan wilayah migrasi dan habitat untuk kepentingan konservasi spesies, perairan dan ekosistem.    
Membangun Indikator Keberhasilan Restorasi Terumbu Karang Subhan, Beginer; Dondy Arafat; Inna Puspa Ayu; Nebuchadnezzar Akbar
Policy Brief Pertanian, Kelautan, dan Biosains Tropika Vol. 7 No. 4 (2025): Policy Brief Pertanian, Kelautan, dan Biosains Tropika
Publisher : Direktorat Kajian Strategis dan Reputasi Akademik IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/agro-maritim.0704.1442-1447

Abstract

Restorasi terumbu karang adalah serangkaian upaya ilmiah dan manajerial untuk memulihkan ekosistem terumbu karang yang rusak akibat faktor alam dan aktivitas manusia. Teknik restorasi yang digunakan termasuk transplantasi karang, pembuatan terumbu karang buatan, dan pengendalian stresor lokal seperti polusi, overfishing, dan perubahan iklim. Kegiatan restorasi di Indonesia telah dilaksanakan di lebih dari 500 titik dalam 30 tahun terakhir, melibatkan ribuan unit terumbu buatan dan jutaan fragmen karang. Namun, banyak dari kegiatan ini tidak menunjukkan keberhasilan yang ditandai dengan kegagalan.  Faktor peningkatan suhu laut, persaingan dengan alga atau spons, serta faktor manusia menjadi penyebab utama. Saat ini, Indonesia belum memiliki standarisasi untuk menilai keberhasilan restorasi terumbu karang. Oleh karena itu, penting untuk mengembangkan parameter dan indikator yang dapat digunakan untuk menilai efektivitas dan keberhasilan kegiatan restorasi, guna memastikan keberlanjutan ekosistem terumbu karang.
Biodiversity and DNA Barcoding of Seagrass in Equatorial Latitudes Regional Representation of Tropical Indonesia Would Improve Clarity, Structure, and Scientific Precision Subur, Riyadi; Akbar, Nebuchadnezzar; Abubakar, Salim; Ismail, Firdaut; Paembonan, Rustam E; Subhan, Beginer; Arafat, Dondy; Irfan, Muhammad
Jurnal Ilmiah Perikanan dan Kelautan 2026: JIPK VOLUME 18 ISSUE 2 YEAR 2026 (JUNE 2026, ISSUE IN PROGRESS)
Publisher : Faculty of Fisheries and Marine Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jipk.v18i2.83915

Abstract

Graphical Abstract Highlight Research 1. This research provides initial and current information regarding seagrass on small islands right on the equator. 2. directly depicts the diversity, density and cover of seagrass in a unique region, namely a small island crossed by the equator. 3. The environmental conditions of marine waters in seagrass areas on islands crossed by the equator have been described. 4. The latest information specifically describing seagrass and the ecology of equatorial marine environments. Essential for the development of future knowledge and technology. 5. DNA barcoding was capable of resolving field identification challenges and providing taxonomic clarification based on DNA sequence data.   Abstract The equator is a hypothetical line that separates the general region from the world.  Complete information on coastal ecosystems has not been provided for seagrass in the equatorial latitudes. Seagrass is dynamically distributed throughout the equatorial latitudes. The area that the equatorial latitudes also traverse is known as the indotropic region. Eastern Indonesia's Kayoa Island is situated directly on the equator.  A problem, namely how is the biodiversity of seagrass in the equatorial region. There are no published research on seagrass, particularly on biodiversity. The aim of this study is to reveal the diversity of seagrass in equatorial latitudes on the small islands. The methodology in this study was purposive sampling with a quadrant line transect was used to obtain the samples.  In situ identification of seagrass species was done.  Seagrass samples were taken from the leaves for DNA analysis purposes. Leaf samples were analyzed molecular in the laboratory. To determine the distribution of seagrass ecology and environmental were subjected to PCA analysis. The results found that six species of seagrass.  It has been discovered that seagrass may grow and develop in the tropical region under typical environmental conditions.  Despite the fact that six species were discovered, diversity was limited.  In this region, seagrass cover is typically high and supports a healthy species density.  In general concluded that diversity and density are low but cover is still quite good. DNA barcoding has revealed differences in morphological identification.This discovery represents preliminary data that can be investigated further in subsequent studies.    
Preliminary study oceanography and environmental parameters of habitat endemic species Halmahera walking shark (Hemiscyllium halmahera) on Indopacific Ocean Area in North Maluku Indonesia Nyoman Metta N Natih; Nebuchadnezzar Akbar; Dietriech G Bengen; I Wayan Nurjaya; Riyadi Subur; Abdurrachman Baksir; Firdaut Ismail; Iswandi Wahab; Dondy Arafat; Rustam E Paembonan; Abdul Ajiz Siolimbona; Rasidi Rasidi; Asep Sandra Budiman; Beginer Subhan
Depik 2025: Special Issue ICMF
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.0.0.46913

Abstract

The Halmahera Walking Shark (Hemiscyllium halmahera) is an endemic species in the Halmahera Sea. Information related to the environment in general has not been described in a complex manner. The environment is the main factor to support the life of biota. Environmental characteristics are a determining factor in the sustainability of biota. The study aims to provide information related to the physical environment of the habitat of the H. halmahera species. Primary data collection was carried out directly (in situ). Current data was taken using the Lagrange method using a currents drogue. Tides using tidal palms and observed for 24 hours. Secondary data was taken from Marine Copernicus and the Geospatial Information Agency (BIG). All data were tabulated and analyzed by Ocean Data View (ODV) software. The results of the study found that the surface current velocity was found to be in the fast current category. Current speed descriptively provides information on the life of H. halmahera. Primary data shows that the direction of the surface current moves to the east and north. Secondary data in vertical distribution shows weak zonal and meridional current shifts. The tidal pattern was found to be two high and low tides (semidiurnal). The distribution of surface temperature was found to be around 30-32oC. The vertical temperature profile found three layers, namely 1-13m (30oC), 65m (25oC) and 71m (20oC). The chemical environment showed all normal variables. The physical and chemical environmental conditions support H. halmahera to inhabit the sea area of Morotai Island. The environmental description has provided a brief understanding of how the ecological role of the H. halmahera species. Management and sustainability of the environment in the future due to climate change can be done with information on habitat characteristics.Keywords:coral triangleHalmaheranicheNorth Malukutropical
Condition and zonation of mangrove ecosystems in the small islands around the area crossed by the equatorial line of North Maluku Province Najamuddin Najamuddin; Abdurrachman Baksir; Nebuchadnezzar Akbar; Firdaut Ismail; Abdul Ajiz Siolimbona; Dondy Arafat; Rustam E Paembonan; Raismin Kotta; Beginer Subhan; Irmalita Tahir; Nyoman MN Natih; Eko S Wibowo; Ikbal Marus; I Wayan Nurjaya; Dietriech Geoffrey Bengen
Depik Vol 13, No 2 (2024): AUGUST 2024
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.13.2.32075

Abstract

The South Halmahera Islands feature a comprehensive marine coastal ecology. The ecosystems found were seagrass, mangrove and coral reef ecosystems. The components that sustain the existence of this ecosystem are employed equitably because of its geographical location on the equator. Mangrove ecosystems that provide benefits directly and indirectly to the community. The purpose of this study was to determine the condition of the mangrove ecosystem based on the hemispherical photography method and the type of zonation. Tawabi Island, Kayoa, South Halmahera Regency served as the site of the equator research. The research station is determined as many as 3 stations. Mangrove percent cover canopy using the hemispherical photography and transect quadrant for density. Field data gathering procedures with transects drawn perpendicular from the sea to the land. Zonation characteristics and thickness using zone tracking. Density mangrove using ecology analysis and zonation using canvas 9.0. The results of the research founded were Rhizophora apiculata, Rhizophora mucronata and Sonneratia alba. Mangrove percent cover canopy were good category (75-81%), where station I (75%), station II (81%) and station III (77%). Station I having 600 trees per ha, station II having 500 trees per ha, and station III having 400 trees per ha (low density category). Mangroves were found in 3 zones Sonneratia alba, Rhizophora apiculata and Rhizophora mucronata. The mangrove thickness from sea to land at station I (65 meters), station II (69 meters) and station III (42 meters).Keywords:biodiversitycoastalequator lineHalmaheratropical
Morphological identification of the soft coral, Clavularia inflata, reveals different sclerite characters across Indonesian coral reefs Subhan, Beginer; Bengen, Dietriech G; Ferse, Sebastian; Dzulfannazhir, Fauzan; Anggraini, Nurlita Putri; Santoso, Prakas; Arafat, Dondy; Sani, Lalu M. Iqbal; Prehadi, Prehadi; Madduppa, Hawis
Depik Vol 11, No 2 (2022): August 2022
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.11.2.22102

Abstract

Soft corals of the genus Clavularia (Blainville 1830) have complex and difficult to distinguish morphological characteristics, making them rather difficult to identify. A paucity of information exists for Indonesian coral reefs, a complex biogeographic region at the confluence of the Pacific and Indian Ocean that covers an extensive geographic area and several marine ecoregions, is subject to several ocean current systems, and includes a high diversity of habitats. Specimens of Clavularia inflata were collected from eleven study sites across the Indonesian archipelago, morphologically described based on their sclerite characteristics, and compared among sites. Sclerite observations were divided into four parts for each colony, namely pinnules, crowns, calyces, and stolons. The sclerites found in C. inflata comprised various forms such as rods, fingers, sticks, and brackets. Morphometric measurements of C. inflata showed specimens from Kepulauan Seribu had the largest pinnule, calyx, and stolon sclerites compared to other locations. The maximum mean size of crown sclerites was observed for specimens from Maluku Tenggara Barat. Similarities in the shape of sclerites resulted in specimens from Kangean, Morotai, Tanjung Lesung, Bontang, Lombok and Natuna forming a cluster, while those from Maluku Tenggara Barat and Arborek were dissimilar to other sites. Smaller sclerite sizes in specimens from Arborek are likely related to strong currents at that site. In conclusion, there were variations in the size of sclerites across the eleven study sites, with several sites forming a cluster of similar sclerite dimensions. Further studies using molecular markers are suggested to further explore the possibility of cryptic species.
Co-Authors Abdul Ajiz Siolimbona Abdul Ajiz Siolimbona Abdul Motalib Angkotasan Abdurrachman Baksir Abdurrachman Baksir Abdurrachman Baksir Abdurrachman Baksir, Abdurrachman Abjan Ibrahim, Abjan Abubakar, Salim Achmad, Muhammad Janib Adewal, Murad Alvian K Aditya Bramandito Adriani Sunuddin Ahmad Taufik Ghozali Ahmad Taufik Ghozali Aisyah, Siti Zanuba Anggraini, Nurlita Putri Anwar, Muhammad Fathur Aradea Bujana Kusuma Aradea Bujana Kusuma Ardan Samman Asadatun Abdullah Asep Sandra Budiman Asep Sandra Budiman, Asep Sandra Ayu Ervinia Ayu, Inna Puspa Bashari, Muhammad Hasan Beginer Subhan Benyamin, Azhari Bertoka Fajar S.P. Negara Citra S. U. Dewi Citra Satrya Utama Dewi Dea Fauzia Lestari, Dea Fauzia Dedi Soedharma Dedi Soedharma Denny Khaerudi Dewi, Citra Satrya Utama Dietrich Geoffrey Bengen Dietrich Geoffrey Bengen Dietriech G Bengen Dietriech Geoffrey Bengen Dzulfannazhir, Fauzan E Paembonan, Rustam Eko S Wibowo Elfahmi Elfahmi, Elfahmi Fadhilah Rahmwawati Fadillah Rahmawati Fauzan Dzulfannazhir Fauzan Dzulfannazhir Febriantika, Putri Ferse, Sebastian Firdaut Ismail Firdaut Ismail Firdaut Ismail Genadi Algadri Hari, Restu Fajar Hawis H Madduppa Husna, Alief K I Wayan Nurjaya Ikbal Marus Ikbal Marus, Ikbal Inna Puspa Ayu Irmalita Tahir Irmalita Tahir Irmalita Tahir, Irmalita Ismail, Firdaut Iswandi Wahab Khairudi, Denny Kotta, Raismin Lalu M. Iqbal Sani Lalu M. Iqbal Sani Luzmi Malia Izza Muhammad Irfan Muhammad Janib Achmad Mutmainnah Mutmainnah N Natih, Nyoman Metta N, Furqan Nadya Cakasana Najamuddin Najamuddin Najamuddin Najamuddin, Najamuddin Nebuchadnezzar Akbar Nebuchadnezzar Akbar NEVIATY PUTRI ZAMANI Ni Kadek Dita Cahyani, Ni Kadek Dita Novriyandi Hanif Nur Ari Bayu Nurlita Putri Anggraini Nurlita Putri Anggraini Nyoman M N Natih Nyoman Metta N Natih Paembonan, Rustam E Prakas Santoso Prakas Santoso Prakas Santoso Prehadi . Prehadi Prehadi Prehadi, Prehadi Rahimah, Insaniah Rahman Rahman Raismin Kotta Rani Utari Ayuningtyas Rasidi Rasidi Rasidi, Rasidi Restu, Yunan Gilang Riyadi Subur, Riyadi Rustam E Paembonan Rustam E Paembonan Rustam E Paembonan Rustam Effendi Paembonan, Rustam Effendi Sani, Lalu M Iqbal Sani, Lalu M. Iqbal Santoso, Prakas Sebastian C. A. Ferse Sebastian Ferse Setiamarga, Davin H. E. Siolimbona, Abdul Ajiz Sukandar Sukandar Sukandar, Mr. Syafrizayanti, Syafrizayanti Wahab, Iswandi Wibowo, Eko S Wibowo, Eko Setyobudi Yidoatimojo, Sudibyo Yosie Andriani Zulham Apandy Harahap Zulhan Arifin Harahap