Maximum entropy model: estimating the relative suitability of cetacean habitat in the northern Savu Sea, Indonesia

Putra, Mochamad Iqbal Herwata, and Mustika, Putu Liza Kusuma (2020) Maximum entropy model: estimating the relative suitability of cetacean habitat in the northern Savu Sea, Indonesia. Marine Mammal Science. (In Press)

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Abstract

An understanding of cetacean distribution is necessary to gain insights into crucial ecological processes for species conservation management. However, cetacean habitat preference and distribution in the northern Savu Sea, Indonesia are still poorly understood. We use maximum entropy modelling with five environmental predictors to describe habitat preference and distribution of seven cetacean species in the northern Savu Sea. Our study confirms that static predictors are the most important variables in explaining habitat preferences of seven cetacean species in the northern Savu Sea. Seasonally, each cetacean species has a different environmental preference. Globicephala macrorhynchus prefers the open nearshore areas adjacent to deep waters. Stenella attenuata is associated with nearshore habitats and higher productivity areas. Stenella longirostris prefers nearshore habitat during coastal upwelling events. Tursiops truncatus prefers nearshore sheltered habitat. Grampus griseus habitats are highly related to depth and steep gradients around the isobaths of 200-1,000 m. Feresa attenuata are associated with deep waters and cooler sea temperature. Pseudorca crassidens prefers protective bays with productive waters. This study provides important information for reviewing marine spatial plans of the northern Savu Sea, specifically on managing species fisheries interaction, optimizing surveillance, and regulating marine traffic.

Item ID: 63858
Item Type: Article (Research - C1)
ISSN: 1748-7692
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Copyright Information: © 2020 Society for Marine Mammalogy
Funders: East Flores, Indonesian Government, Vulcan Philanthropy, MacArthur Foundation, WildAid
Date Deposited: 04 Aug 2020 01:06
FoR Codes: 05 ENVIRONMENTAL SCIENCES > 0502 Environmental Science and Management > 050211 Wildlife and Habitat Management @ 100%
SEO Codes: 96 ENVIRONMENT > 9608 Flora, Fauna and Biodiversity > 960808 Marine Flora, Fauna and Biodiversity @ 100%
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