Dosidicus gigas fishing grounds in the Eastern Pacific as revealed by satellite imagery of the light-fishing fleet

Waluda, Claire M. ORCID: https://orcid.org/0000-0003-3517-5233; Rodhouse, Paul G.. 2005 Dosidicus gigas fishing grounds in the Eastern Pacific as revealed by satellite imagery of the light-fishing fleet. Phuket Marine Biological Center Research Bulletin (66). 321-328.

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Abstract/Summary

Dosidicus gigas (the Jumbo flying squid) supports a major fishery in the Eastern Pacific. The commercial fishery consists of a multinational jigging fleet, and the emission of light from these vessels can be observed using satellite-derived imagery obtained by the United States Defence Meteorological Satellite Program - Operational Linescan System (DMSP-OLS). Using a Geographic Information System (GIS), the location of the fleet (derived from DMSP-OLS data) was examined for the region 20°N to 20°S; 75 to 100°W, covering the central part of the species' distribution. Satellite imagery of the light-fishing fleet revealed fishing grounds to be situated off the coast of Peru (2 to 10°S), with fishing on the high seas observed off both Peru (3 to 18°S), and Central America (5 to 10°N). The distribution of the fleet was not associated with bathymetry or proximity to coastal regions, but is likely to be linked to upwelling events in the Eastern Pacific. DMSP-OLS data can be used to provide synoptic imagery of the fleet for time periods from a single day to several years, and enables the study of fleet activity across management and political boundaries.

Item Type:	Publication - Article
Programmes:	BAS Programmes > Independent Projects
ISSN:	0858-1088
Additional Keywords:	Squid, Fisheries, Remote sensing
NORA Subject Terms:	Marine Sciences Ecology and Environment
Date made live:	21 Jan 2008 14:15 +0 (UTC)
URI:	https://nora.nerc.ac.uk/id/eprint/2043

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