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All Journal Jurnal Teknologi Perikanan dan Kelautan Jurnal Pengolahan Hasil Perikanan Indonesia Jurnal Ilmu dan Teknologi Kelautan Tropis Journal of Marine and Aquatic Sciences ILMU KELAUTAN: Indonesian Journal of Marine Sciences Majalah Geografi Indonesia Jurnal Kelautan : Indonesian Journal of Marine Science and Technology Al-Ahkam Jurnal Kelautan Tropis Panrita Abdi - Jurnal Pengabdian pada Masyarakat Journal of Applied Geospatial Information Jurnal Sumberdaya Akuatik Indopasifik Omni-Akuatika Dinamika Maritim Jurnal Ilmu Kelautan Kepulauan Jurnal Kelautan Nasional International Journal of Marine Engineering Innovation and Research Depik Jurnal Ilmu-Ilmu Perairan, Pesisir dan Perikanan Depik Jurnal Ilmu-Ilmu Perairan, Pesisir, dan Perikanan Journal of Fisheries & Marine
Nyoman M N Natih
Department Of Marine Science & Technology, IPB University, Bogor 16880, Indonesia
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Journal : Depik Jurnal Ilmu-Ilmu Perairan, Pesisir, dan Perikanan

 1 
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
The spatial distribution of coral diversity and conection to the oceanography conditions of Tidore Island Waters Angkotasan, Abdul Motalib; Siolimbona, Abdul Ajiz; Salnuddin, Salnudin; Ismail, Firdaut; Daud, Asmar Hi; Natih, Nyoman Metta N
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.0.0.47445

Abstract

The Optimal coral reefs are distributed in shallow waters between 0 and 30 m deep, influenced by the hydro-oceanographic variability of the waters. Globally, corals are distributed in various forms of water predominantly found in the Coral Triangle region. This study aims to examine the spatial distribution of coral biodiversity in the Tidore Island Waters. This study was conducted in the Tidore Island Waters at three research stations, namely Tugulufa Station, Toloa Station and Tanjun Konde Station. This study analyzed the spatial distribution of coral and the relationship between coral biodiversity and the hydro-oceanographic conditions of the Tidore Island waters. The results showed that the highest coral diversity was found at Toloa Station, with the largest area being the Acropora tabulate coral life form. Acropora coral species were found throughout the research location, with the highest percentage of cover found at Toloa Station. Temperature and salinity variables are the main characteristics in the three research locations. Temperature has a role and main characteristics in Toloa Station. The spatial distribution of Acropora corals is related to temperature and salinity variability.Keywords:Coral reefTidore waterTemperatureSalinity
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 Abdul Motalib Angkotasan Abdurrachman Baksir, Abdurrachman Abjan Ibrahim, Abjan Achmad, M Djanib Achmad, M. Djanib Agus Atmadipoera Amir Yarkhasy Yuliardi Anggraini, Nurlita Putri Asep Sandra Budiman, Asep Sandra Aziz, Nasrul Baddu, Sartini Baigo Hamuna Baigo Hamuna Baigo Hamuna Baigo Hamuna Baigo Hamuna Beale, Calvin S. Beginer Subhan Bemba, Jefri Bisman Nababan Darmiyati Muksin Daud, Asmar Hi Dea Fauzia Lestari, Dea Fauzia Dedi Sugianto Dietriech Geoffrey Bengen Dondy Arafat Eko S Wibowo Endang Sunarwati Srimariana Erwin Maulana Ferawati Runtuboi Firdaut Ismail Gentio Harsono Harahap, Zulhan Arifin Husmayani, Wa Ode I Wayan Nurjaya Ikbal Marus Ikbal Marus, Ikbal Imanditya, Muhammad Fachriza Indra Jaya Indra Jaya Indra Jaya Irmalita Tahir Irmalita Tahir, Irmalita Ismail, Firdaut Joko Santoso Jonson Lumban Gaol Karman, Amirul Karman, Amirul Kentaro Ando Khairunnisa Khairunnisa Kotta, Raismin Krisna Rendi Awalludin Leica Febby Shafitri Lisiard Dimara Mario Putra Suhana Marlis Yulianto Meutia Samira Ismet Mochamad Tri Hartanto Muhamad Gilang Arindra Putra Muhamad Gilang Arindra Putra Muhamad Muliadi Muhammad Agus Muljanto Munru, Maestro Mutmainnah Mutmainnah Najamuddin N Najamuddin Najamuddin, Najamuddin Nebuchadnezzar Akbar Neviaty P Zamani NEVIATY PUTRI ZAMANI Neviaty Putri Zamani Paembonan, Rustam E Prayoga, Bintang Rahimah, Insaniah Rahman Rahman Rasidi, Rasidi Rastina Rastina Ratuluhain, Eva Susan Rika Anggraini Risandi Dwirama Putra RITA ANDINI Riyadi Subur, Riyadi Riza Aitiando Pasaribu Ruslan Husen Saban Tawari Rustam E Paembonan Rustam Effendi Paembonan, Rustam Effendi Sallatu, Muh Ashry Salnuddin Salnuddin, Salnuddin Salnuddin, Salnudin Sartini Baddu Selviani, Selviani Septy Heltria Siolimbona, Abdul Ajiz Sri Hadianti Sri Pujiyat Sri Pujiyati Steven Solikin Suhaemi Suhaemi, Suhaemi Syamsul Bahri Agus, Syamsul Bahri Syawaludin Alisyahbana Harahap Taj, Kemal Tarigan, Nurhayati Wahab, Iswandi Wahyu W Pandoe Wibowo, Eko S Zulfikar, Andi Zulham Apandy Harahap