A characterization of the habitat of Charcharadon carcharias between Hawaii and the Line Islands: To what extent is productivity a determining factor in habitat choice

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Abstract/Contents

Abstract: This study attempted to describe the distribution patterns of great white sharks, C. carcharias, in the geostrophic eddy field between Hawaii and the Line Islands in relation to primary and secondary productivity in the water column. To do so, in situ chl-a fluorescence measurements as well as zooplankton net tows were taken along a cruise track between Hawaii the Line Islands. This data was analyzed together with an equivalent dataset collected in 2005 by Markman and Schwartz. Also, Pop Up Satellite Archival Tag (PSAT) data for white shark movements in the vicinity of Hawaii was used to determine the degree of correlation between white shark distribution and eddy locations. The results of this study tentatively suggest that firstly, geostrophic currents seem to boost primary and secondary productivity in a largely predictable manner, and secondly, that white sharks may take advantage of this by focusing on these relatively productive eddies during their aggregation period offshore of Hawaii.

Type of resource	text
Date created	June 9, 2007

Author	Del Raye, Gen

Subject	Stanford@SEA
Subject	S-211
Subject	Hopkins Marine Station
Subject	Department of Biology
Subject	Department of Earth System Science
Subject	BIOHOPK 182H
Subject	BIOHOPK 323H
Subject	EARTHSYS 323
Subject	ESS 323
Subject	distribution patter
Subject	white shark
Subject	carcharias
Subject	geostrophic eddy
Subject	Hawaii
Subject	Line Islands
Subject	primary production
Subject	secondary production
Subject	chlorophyll
Subject	fluorescence
Subject	zooplankton
Subject	Pop Up Satellite Archival Tag
Subject	PSAT
Genre	Student project report

Location	https://purl.stanford.edu/kd111tb1513

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License: This work is licensed under a Creative Commons Attribution 3.0 Unported license (CC BY).

Preferred Citation: Del Raye, Gen. 2007. A characterization of the habitat of Charcharadon carcharias between Hawaii and the Line Islands: To what extent is productivity a determining factor in habitat choice. Unpublished Student Work, S-211, Stanford@SEA, Stanford Digital Repository. https://purl.stanford.edu/kd111tb1513.

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