Remote sensing in marine fisheries, especially for tunas

Silas, E G (1985) Remote sensing in marine fisheries, especially for tunas. Bulletin of the National Natural Resources Management System, B (6). p. 76.


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Most of the species of tunas respond directly to the temperature variations and it may be stated that certain upper and lower limiting temperatures determine the limits of ranges of tunas in the oceans. Several investigations have been conducted to understand the relation between the variation in sea surface temperature and availability of tunas. The influence of temperature between limiting isotherms on the ~stribution 6f tuna is indirect and is through the availability offorage organisms, especially in areas such as oceanic fronts where marked horizontal temperature differences are observed. In the tropical areas, localised differences in the surface temperature also may point the areas of current boundaries, upwelling etc. where forage organisms for tunas accumulate.

Item Type: Article
Uncontrolled Keywords: Remote sensing; marine fisheries; tuna
Subjects: Oceanography > Remote sensing
Pelagic Fisheries > Tuna fisheries
Divisions: CMFRI-Cochin > Marine Capture > Pelagic Fisheries
Subject Areas > CMFRI Brochures > CMFRI-Cochin > Marine Capture > Pelagic Fisheries
Depositing User: Arun Surendran
Date Deposited: 03 Feb 2011 06:22
Last Modified: 09 Sep 2015 15:43

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