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All Journal Agrikan: Jurnal Agribisnis Perikanan
Galitan, Zulfikar
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Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Earth & Planetary Sciences Environmental Science

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Habitat Characteristics of Endemic Species of Walking Shark (Hemiscyllium Halmahera) for Proposed Protection Areas on Ternate Island, North Maluku Galitan, Zulfikar; Wahidin, Nurhalis; Irham, Irham
Agrikan Jurnal Agribisnis Perikanan Vol. 16 No. 2 (2023): Agrikan: Jurnal Agribisnis Perikanan
Publisher : Fakultas Pertanian, Universitas Muhammadiyah Maluku Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52046/agrikan.v16i2.1787

Abstract

The walking shark (Hemiscyllium halmahera) is one of the endemic species in North Maluku and it can be found in the waters of PulauTernate. There is less Information about walking sharks, so more research is needed about this species. Moreoverthe information related to habitat conditions and priority areas for shark protection is also limited especially on the west coast of Ternate Island, so more research is also needed for this species. This study aims to describe the characteristics of habitat distribution and identify areas for priority protection for shark species (Hemiscyllium halmahera) in the sea water of Ternate island. Related to these conditions, it is required to forma proposed priority area protection scheme using Marxan software.In a Marxan analysis conservation features and cost features are needed to make a priority area scheme. The results of the Marxan analysis indicate that 20% of scenario is very priority with an area of 66.3 ha, a scenario of 30% with an area of 65.6 ha, and a scenario of 50% with an area of 71.0 ha from the total area of 421.4 ha. Scenario 20% is the most suitable location to serve as a proposed marine protected area, especially the Halmahera walking shark so that in the future it can be expected to be a priority marine protection area that can grow optimally.
Study of Bathymetry and Seabed Topography in the Tourism Coastal Waters of Sulamadaha Village Galitan, Zulfikar; bamba, Jefri; Lessy, M. Ridwan; Harahap, zulhan A
Agrikan Jurnal Agribisnis Perikanan Vol. 17 No. 1 (2024): Agrikan: Jurnal Agribisnis Perikanan
Publisher : Fakultas Pertanian, Universitas Muhammadiyah Maluku Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52046/agrikan.v17i1.2008

Abstract

The seabed generally has varying relief or topography from the land boundary to the seabed. However, this amazing topography sometimes does not make a meaningful impression for many people, because its shape cannot be seen directly (Nontji, 1987). The picture of the bottom of the waters can be known by measuring the depth of the sea. This research was carried out to measure and describe the basic morphometry of Sulamadaha coastal waters. This research was carried out for 1 month. Water depth measurements are carried out using an acoustic instrument (Fish-Finder) which is carried out on a boat (ship) while sounding. The tool used in this research is the Garmin 350 C type using dual frequency (50 Hz and 200 Hz). Reading and recording of the position (Latitude and Longitude) and water depth is carried out at any precise time (fix point). Next, the results obtained are recorded on the prepared data entry sheet. The data obtained was then processed using the Microsoft Excel application program, Surfer 10 program, and ArcGIS 10.1 program. Based on the results of data processing and analysis, a water depth value of no more than 110 m was obtained. The level of beach morphometry obtained from a number of profiles based on differences in depth contours shows slope values varying between 2.6% - 79.5% which are classified from flat slopes to very steep slopes.
Co-Authors bamba, Jefri Irham Irham Lessy, M. Ridwan Wahidin, Nurhalis Zulhan A Harahap, Zulhan A