The collapse of cod in Eastern Canada: the evidence from tagging data

We examined the history of exploitation of three cod populations in Eastern Canada since 1954 as estimated from tag return data from 122 tagging experiments. We found very high rates of exploitation in the late 1980s and early 1990s that are consistent with the hypothesis that these populations coll...

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Bibliographic Details
Main Authors: R. A. Myers, N. J. Barrowman, J. M. Hoenig, Z. Qu, Ac R
Other Authors: The Pennsylvania State University CiteSeerX Archives
Format: Text
Language:English
Published: 1996
Subjects:
Key words
exploitation rate
overfishing
Gadus morhua
mark–recapture
fishing mortality
stock structure
migration
virtual population analysis (VPA
Canada
Online Access:http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.516.64
http://icesjms.oxfordjournals.org/content/53/3/629.full.pdf
Description
Summary:We examined the history of exploitation of three cod populations in Eastern Canada since 1954 as estimated from tag return data from 122 tagging experiments. We found very high rates of exploitation in the late 1980s and early 1990s that are consistent with the hypothesis that these populations collapsed because of overfishing. The estimates were made with a new method that incorporates the data in the year of tagging which are often ignored.

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