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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 Achmad, M. Djanib Agus Atmadipoera Amir Yarkhasy Yuliardi Asep Sandra Budiman, Asep Sandra Baigo Hamuna Baigo Hamuna Baigo Hamuna Baigo Hamuna Baigo Hamuna Beale, Calvin S. Beginer Subhan 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 Husmayani, Wa Ode I Wayan Nurjaya Ikbal Marus Ikbal Marus, Ikbal Indra Jaya Indra Jaya Indra Jaya Irmalita Tahir Irmalita Tahir, Irmalita Ismail, Firdaut Joko Santoso Jonson Lumban Gaol Karman, Amirul Kemal Taj 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 Najamuddin N Najamuddin Najamuddin, Najamuddin Nebuchadnezzar Akbar Neviaty P Zamani NEVIATY PUTRI ZAMANI Neviaty Putri Zamani Paembonan, Rustam E Rasidi, Rasidi Rastina Rastina Ratuluhain, Eva Susan Rika Anggraini Risandi Dwirama Putra Riyadi Subur, Riyadi Riza Aitiando Pasaribu 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 Syamsul Bahri Agus, Syamsul Bahri Syawaludin Alisyahbana Harahap Tarigan, Nurhayati Wahab, Iswandi Wahyu W Pandoe Wibowo, Eko S Zulfikar, Andi