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All Journal HAYATI Journal of Biosciences MANAJEMEN HUTAN TROPIKA Journal of Tropical Forest Management Buletin PSP Jurnal Ilmu dan Teknologi Kelautan Tropis Jurnal Ilmu-Ilmu Perairan dan Perikanan Indonesia Forum Pasca Sarjana Maspari Journal AGRISAINS JURNAL PERIKANAN DAN KELAUTAN TROPIS ILMU KELAUTAN: Indonesian Journal of Marine Sciences Jurnal Akuatika Berkala Perikanan Terubuk POSITRON BIOTROPIA - The Southeast Asian Journal of Tropical Biology Maspari Journal Jurnal Penelitian Hutan Tanaman Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Jurnal Bisnis Perikanan Journal of Indonesian Coral Reefs Jurnal Kelautan Tropis Omni-Akuatika MAJALAH ILMIAH GLOBE Jurnal Bina Praja BULLETIN OF THE MARINE GEOLOGY Marine Research in Indonesia Biosaintifika: Journal of Biology & Biology Education Indonesian Aquaculture Journal Jurnal Kebijakan Perikanan Indonesia Jurnal Segara Jurnal Sosial Ekonomi Kelautan dan Perikanan Jurnal Kebijakan Sosial Ekonomi Kelautan dan Perikanan Buletin Ilmiah Marina : Sosial Ekonomi Kelautan dan Perikanan JURNAL PERIKANAN TROPIS Asian Journal of Aquatic Sciences Makara Journal of Science Depik Jurnal Ilmu-Ilmu Perairan, Pesisir dan Perikanan Depik Jurnal Ilmu-Ilmu Perairan, Pesisir, dan Perikanan
Dietriech Geoffrey Bengen
Department Of Marine Science And Technology, Faculty Of Fisheries And Marine Science, Bogor Agricultural University, Academic Ring Road, Campus IPB Dramaga, Bogor, Indonesia 16680
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Immunology & microbiology Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Physics Social Sciences Veterinary Other

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Journal : Depik Jurnal Ilmu-Ilmu Perairan, Pesisir, dan Perikanan

 1 
Presenting identification keys and future study on seagrass Halophila major in Indonesia Darus, Robba Fahrisy; Bengen, Dietriech Geoffrey; Zamani, Neviaty Putri; Ismet, Meutia Samira
Depik Jurnal Ilmu Ilmu Perairan, Pesisir, dan Perikanan Vol 14, No 2 (2025): JUNE 2025
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.14.2.44166

Abstract

Halophila major is a new species with a wide distribution across various regions in Indonesia. The species was identified in 2020 through a combination of morphology and molecular approaches. Several studies have shown that it has a similar morphology to H. ovalis, which causes significant confusion during identification. Therefore, this study aims to describe the key identification and habitat of H. major and summarize seagrasses study opportunities based on the trend of published articles. A bibliometric analysis was used to summarize the habitat, morphometrics, molecular confirmation, and trend of seagrass topics in Indonesia. Based on the scientific articles, H. major has bigger morphometrics than H. ovalis. In addition, the number of paired and branching cross veins was reported to be an identification key of H. major. The species was also considered a deep ovalis found in 2-4 m depth. Genetically, the Internal Transcribed Spacer (ITS) gene marker was appropriate to showits phylogenetic tree. H. major was also classified into different clades with H. ovalis due to various factors. The results showed that genetics, tourism, and restoration were topics with the potential to be explored in the future. This study recommended collaborating in multi-institution to transfer knowledge, technologies, and project arrangements for seagrass exploration.Keywords:BibliometricHalophilaMarine angiospermaeMarin plantRediscoverySpecies
Condition and zonation of mangrove ecosystems in the small islands around the area crossed by the equatorial line of North Maluku Province Najamuddin, Najamuddin; Baksir, Abdurrachman; Akbar, Nebuchadnezzar; Ismail, Firdaut; Siolimbona, Abdul Ajiz; Arafat, Dondy; Paembonan, Rustam E; Kotta, Raismin; Subhan, Beginer; Tahir, Irmalita; Natih, Nyoman MN; Wibowo, Eko S; Marus, Ikbal; Nurjaya, I Wayan; Bengen, Dietriech Geoffrey
Depik Jurnal Ilmu Ilmu Perairan, Pesisir, dan Perikanan 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
Mapping and validation of spatial algorithm for monitoring turbidity of seagrass habitat using sentinel-2B imagery in Ternate Island Paembonan, Rustam Effendi; Bengen, Dietriech Geoffrey; Nurjaya, I Wayan; Agus, Syamsul Bahri; Natih, Nyoman Metta N; Subhan, Beginer; Santoso, Joko
Depik Jurnal Ilmu Ilmu Perairan, Pesisir, dan Perikanan 2025: Special Issue ICFM
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.0.0.46989

Abstract

Turbidity is a parameter of the marine environment that greatly affects the condition of seagrass whose habitat is an intertidal zone in shallow sea waters. Seagrass is an important type of ecosystem that can be found in several coastal areas of Ternate Island. This study aims to analyze the turbidity conditions of seagrass habitat waters and apply a remote sensing algorithm using Sentinel 2B images. The turbidity research method was carried out by field measurements. The turbidity algorithm model used refers to references with mathematical equations (Rrs665-0.014)/0.013, and the development of a new algorithm as a comparison algorithm. Both algorithms were validated with field data to determine the level of accuracy using the Normalized Mean Absolute Error (NMAE) and determination coefficient (R2). The results were obtained from turbidity data with values ranging from 0.3 NTU to 1.5 NTU with an average value of 0.87 0.45 NTU. The Sentinel 2B image in this study was restored with geometric corrections, atmosphere, radiometric digital values, land masking, and sun glint. The turbidity algorithm model used obtained good accuracy in mapping and monitoring the turbidity of seagrass habitat waters on Ternate Island. The application of the turbidity algorithm used as a reference in this study has an NMAE value of 50.44 and R2 of 0.8822, while the newly discovered turbidity algorithm has an NMAE value of 29.38 and R2 of 0.8827.Keywords:remote sensingecosystemscoastalsedimentationNorth Maluku
Preliminary study oceanography and environmental parameters of habitat endemic species Halmahera walking shark (Hemiscyllium halmahera) on Indopacific Ocean Area in North Maluku Indonesia Natih, Nyoman Metta N; Akbar, Nebuchadnezzar; Bengen, Dietriech G; Nurjaya, I Wayan; Subur, Riyadi; Baksir, Abdurrachman; Ismail, Firdaut; Wahab, Iswandi; Arafat, Dondy; Paembonan, Rustam E; Siolimbona, Abdul Ajiz; Rasidi, Rasidi; Budiman, Asep Sandra; Subhan, Beginer
Depik Jurnal Ilmu Ilmu Perairan, Pesisir, dan Perikanan 2025: Special Issue ICFM
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
Co-Authors . Ahyar . Chaidir . Suharsono Abdul Harim Abdullah Hisam bin Omar Abdurrachman Baksir, Abdurrachman Abimanyu Takdir Alamsyah Abrahamsz, Jodie G. Achmad Fahrudin Achmad Fahrudin Achmad Fahrudin Achyani, Ratno Aditya Hikmat Nugraha Afdal Afdal, Afdal Agung Putra Utama Agus Atmadipoera Agus Sholeh Atmadipoera Agustin Rustam Ahmad Najid Al Azhar Al Azhar Alan Frendy Koropitan Alimudin Laapo An Nisa Nurul Suci Andi Irwan Nur, Andi Irwan Angela Mariana Lusiastuti Anna Ida Sunaryo Purwiyanto Arief Pratomo, Arief Arif Satria Ario Damar Arisandi, Defrian Marza Ariston, Muhamad Asep Sandra Budiman, Asep Sandra Audina Putri Awal . Subandar, Awal . Awal Subandar Ayu, Inna Puspa Beale, Calvin S. Beginer Subhan Bintal Amin Budi Hascaryo Iskandar Budi Prabowo Budy Wiryawan Burhanis Burhanis Chaidir Chaidir Dafit Ariyanto David Smith Dedi Soedharma Dondy Arafat Efriyeldi, Efriyeldi Ekawati Sri Wahyuni Erlania Erlania Etty Riani Faisal Hamzah Fauzan Dzulfannazhir Ferawati Runtuboi Ferdinan Yulianda FERY KURNIAWAN Franto Novico Fredinan Yulianda Gede Iwan Setiabudi Hanif Budi Prayitno Harpasis Slamet Sanusi Hawis H Madduppa Hefni Effendi Hilda Zulkifli Hilda Zulkifli Hilda Zulkifli I Wayan Nurjaya Idris Idris Ikbal Marus, Ikbal Ilham, Yuwanda Indri Manembu Ira Dillenia Irma Akhrianti Irmalita Tahir, Irmalita Isdradjad Setyobudiandi Isdradjad Setyobudiandi Ismail, Firdaut Isni Nurruhwati Isni Nurruhwati John Haluan John I Pariwono Joko Santoso Joshian N.W. Schaduw Juraij Juraij Kadarwan Soewardi Kotta, Raismin Kurdi Gunawan Lalu M Iqbal Sani Lalu M. Iqbal Sani Leni Maryani Lieng, Lieng LILIK BUDIPRASETYO Luhulima, Yunita Luky Adrianto Luzmi Malia Izza Mai Suriani Majariana Krisanti Martini Djamhur Maya F Tamimi Mennofatria Boer Meutia Samira Ismet Michael John Sweet Michael Sweet Miswandi, Muhammad Mudjirahayu Mudjirahayu Muh. Ishak Jumarang Muh. Rasman Manafi Muhammad Agus Muljanto Muhammad Kasnir Muhammad Masrur Islami, Muhammad Masrur Mujizat Kawaroe Mujizat Kawaroe Mujizat Kawaroe Mujizat Kawaroe Mujizat Kawaroe Mujizat Kawaroe Mulyono S. Baskoro Najamuddin Najamuddin, Najamuddin Najid, Ahmad Nanda Tiara Diningsih Nebuchadnezzar Akbar Nella Tri Agustini, Nella Tri Neviaty P Zamani Neviaty P. Zamani Neviaty Putri Zamani NEVIATY PUTRI ZAMANI Noferya, Efi Noverita Dian Takarina Dian Takarina Novi Susetyo Adi, Novi Susetyo Novian Prahandhy Kusuma Nuraini Nuraini Nurlisa Alias Butet Nurlita Putri Anggraini Nyoman M N Natih Nyoman M.N Natih Ocky Karna Radjasa Ofri Johan Ofri Johan Ofri Johan Ofri Johan Paembonan, Rustam E Prakas Santoso Prayoga, Bintang R Widodo Rahma Aprilian Rahmat Kurnia Rahmat, Fadhlan Basiluddin Rainer A Troa Ramili, Yunita Rasidi, Rasidi Rastina, Rastina Retraubun, Alex S.W. Riana Faiza Richard J. Stanford Richardus F Kaswadji Richardus F Kaswadji Richardus Kaswadji Richardus Kaswadji RIDWAN AFFANDI Rika Anggraini Riris Aryawati Riris Aryawati Rita Rachmawati Riyadi Subur, Riyadi Robba Fahrisy Darus, Robba Fahrisy Rokhmin Dahuri Roni Bawole Rozirwan . Rudi Febriamansyah Rustam Effendi Paembonan, Rustam Effendi Ryan Adhitia Muslim Sadikin Amir Saenudin Safar Dody Salsabila, Afviya Samsuardi Samsuardi, Samsuardi Sebastian C. A. Ferse Setyaningsih, Wahyu Adi Setyo Handayani Setyo Pertiwi Simatupang, Candida Putri Nauli Siolimbona, Abdul Ajiz Sonja Kleinertz Subambang, R. Budiono Subhat Nurhakim Suhaemi Suharsono Suharsono Suharsono _, Suharsono Susanto, Handoko Adi Syahrial Syahrial Syamsul Bahri Agus, Syamsul Bahri Taqiyuddin, Muhammad Wijdan Taryono Tengku Zia Ulqodry Tirtama, Wahyu Tri Hartanto Tri Prartono Tridoyo Kusumastanto Try Al Tanto Ummu Salma Unstain NWJ Rembet Vijaya Isnaniawardhani Wahab, Iswandi Wahyudi, A’an Johan Welly, Marthen Welmar Olfan Barat, Welmar Olfan Wibowo, Eko S Wike Ayu Eka Putri Yanelis Prasenja Yennafri, Yennafri Yuli Naulita Yulianto Suteja Yundari, Yundari Yunianto Setiawan Yusli Wardiatno Zamani, Nevianty P Zulfikar, Andi