DOI: https://doi.org/10.14710/ijfst.20.3.133-140

BIOLOGICAL ASPECT AND ABUNDANCE OF TRITON EPAULETTE SHARK (Hemiscyllium henryi) ENDEMIC TO TRITON BAY, KAIMANA, WEST PAPUA

*Prehadi Prehadi  -  Sorong Coastal and Marine Resource Management Workshop, Directorate General of Marine and Spatial Management, Ministry of Maritime Affairs and Fisheries of the Republic of Indonesia, Indonesia
Novia Indah Kintani  -  Sorong Coastal and Marine Resource Management Workshop, Directorate General of Marine and Spatial Management, Ministry of Maritime Affairs and Fisheries of the Republic of Indonesia, Indonesia
Hendrik Sombo  -  Sorong Coastal and Marine Resource Management Workshop, Directorate General of Marine and Spatial Management, Ministry of Maritime Affairs and Fisheries of the Republic of Indonesia, Indonesia
Arief Reza Fahlevi  -  Sorong Coastal and Marine Resource Management Workshop, Directorate General of Marine and Spatial Management, Ministry of Maritime Affairs and Fisheries of the Republic of Indonesia, Indonesia
Ahmad Junaedy  -  Sorong Coastal and Marine Resource Management Workshop, Directorate General of Marine and Spatial Management, Ministry of Maritime Affairs and Fisheries of the Republic of Indonesia, Indonesia
Ahmad Sabilul Muttaqin  -  Sorong Coastal and Marine Resource Management Workshop, Directorate General of Marine and Spatial Management, Ministry of Maritime Affairs and Fisheries of the Republic of Indonesia, Indonesia
Oktofianus Obaja Raweyai  -  Sorong Coastal and Marine Resource Management Workshop, Directorate General of Marine and Spatial Management, Ministry of Maritime Affairs and Fisheries of the Republic of Indonesia, Indonesia
Dheni Kusumarani  -  Sorong Coastal and Marine Resource Management Workshop, Directorate General of Marine and Spatial Management, Ministry of Maritime Affairs and Fisheries of the Republic of Indonesia, Indonesia
Jhoni Elias Raunsai  -  Sorong Coastal and Marine Resource Management Workshop, Directorate General of Marine and Spatial Management, Ministry of Maritime Affairs and Fisheries of the Republic of Indonesia, Indonesia
Syamsudin Fenetiruma  -  2 Regional Technical Implementation Unit of Kaimana Conservation Area Management, Indonesia
Jantje Jacobus Malaihollo  -  Kaimana Conservation Activist, Indonesia
Rosa Herettrenggi  -  Directorate of Marine Spatial Planning, Directorate General of Marine and Spatial Management, Ministry of Maritime Affairs and Fisheries of the Republic of Indonesia, Indonesia
Santoso Budi Widiarto  -  Serang Coastal and Marine Resources Management Workshop, Directorate General of Marine and Spatial Management, Ministry of Maritime Affairs and Fisheries of the Republic of Indonesia, Indonesia
Beginer Subhan  -  Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, IPB, Indonesia
Diah Ayuningrum  -  Department of Aquatic Resources, Faculty of Fisheries and Marine Science, Diponegoro University, Indonesia

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Abstract
Walking shark is one of elasmobranch that has been protected by the government of the Republic of Indonesia and can be found in the eastern seawaters of Indonesia. There are six species of walking shark, one of it is Triton Bay Epaulette Shark (Hemiscyllium henryi) which is endemic to the coastal waters of Kaimana. There are still lack of information regarding biology abundance and population of H. henryi, therefore it is necessary to do a study related to this species. This study aims to determine individual information and abundance of H. Henryi in Kaimana coastal waters during the observation in 2022 and 2023 based on density value and potential area. The method used is a census based on the Global Positioning System, through snorkeling and walking along the coastline, as well as observations of total length, wet weight, and sex in H. henryi which encountered during census. The total census track is 5.783 meters with a sweep of 2,46 Ha monitoring area. The density or abundance of H. henryi in 2022 is 1,2 ind/Ha and in 2023 is 2,4 ind/Ha. Total length of H. henryi ranged between 55–88 cm (Mean 70,6 cm ± SD 12,29). The length and weight relationship obtained W=0,0004L3,4343 with R2 value of 0,9526. The abundance trend of H. henryi at the coastal waters of Kaimana in the last two years has multipled by 2 times based on density value determining after being designated as a fully protected fish species.
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Keywords: Density; Epaulette Shark; H. henryi; Kaimana; Triton Bay

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