Lower bounds on the exploitation of cod (Gadus morhua) in NAFO divs. 3KL and subdiv. 3Ps during 1997-1999 from tagging experiments / Noel Cadigan and John Brattey.: Fs70-1/2000-073E-PDF
This paper develops a model to estimate exploitation rates (fraction of stock removed by the fishery) using tags returned from the commercial fisheries for Atlantic cod in NAFO Divisions 3L and 3K (3KL) and Subdiv. 3Ps and adjacent areas during 1997-1999. The tag-returns are from numerous tagging experiments conducted in these areas during 1997-1999. Over 36,000 cod in total have been tagged and released during 1997-1999 and 4,007 of these have been reported as recaptured. The model involves length- and gear-based exploitation rates and incorporates methods to estimate tagging mortality, tag loss, tag reporting rates, and fish growth. This model is used to estimate weekly exploitation rates in 3KL and 3Ps; however, the focus is on exploitation in 3KL during the two time periods in which most of the commercial catch in 1999 was taken: July, and September 5 to October 10.
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publications.gc.ca/pub?id=9.805911&sl=0
| Department/Agency | Canada. Department of Fisheries and Oceans. Canada. Canadian Stock Assessment Secretariat. |
|---|---|
| Title | Lower bounds on the exploitation of cod (Gadus morhua) in NAFO divs. 3KL and subdiv. 3Ps during 1997-1999 from tagging experiments / Noel Cadigan and John Brattey. |
| Series title | Canadian Stock Assessment Secretariat research document, 1480-4883 ; 2000/073 |
| Publication type | Series - View Master Record |
| Language | [English] |
| Format | Electronic |
| Electronic document | |
| Note(s) | Includes bibliographical references (p. 24). |
| Publishing information | Ottawa : Fisheries and Oceans Canada, 2000. |
| Author / Contributor | Cadigan, Noel G. Brattey, J.(John) |
| Description | 52 p. : fig., graphs, maps, tables. |
| Catalogue number |
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| Subject terms | Fisheries resources Salt water fish Fishing area Fisheries management |