Effects of Bathymetric Grid-Cell Sizes on Habitat Suitability Analysis of Cold-water Gorgonian Corals on Seamounts. Issue 4 (4th July 2017)

• Record Type: Journal Article
• Authors: Miyamoto, Mai; Kiyota, Masashi; Murase, Hiroto; Nakamura, Takeshi; Hayashibara, Takeshi
• Is Part Of: Marine geodesy. Volume 40:Issue 4(2017)
• Page Start: 205
• Page End: 223
• Publication Date: 2017-07-04
• Subjects: Cold-water corals -- habitat suitability modeling -- multi-beam bathymetry -- seamounts -- spatial resolution -- terrain analysis; Marine geodesy -- Periodicals; Hydrographic surveying -- Periodicals; 526.99
• DOI: 10.1080/01490419.2017.1315543
• Languages: English
• ISSNs: 0149-0419

Abstract

ABSTRACT: We investigated the effects of the spatial resolution of bathymetry data on the predicted local distribution of large gorgonian corals on the southern Emperor Seamounts in the high seas of North Pacific. Terrain attributes were calculated from bathymetric survey data at six different grid-cell sizes (25–800 m) to investigate how the values of bottom terrain attributes and the prediction of MaxEnt habitat suitability models would vary with grid-cell size. The values of each terrain attribute showed different patterns among different grid-cell sizes, and MaxEnt demonstrated better performance at grid-cell size of 100 m or less than at larger sizes.