An evaluation of inseason echosounding estimates of British Columbian herring biomass / R.W. Tanasichuk.: Fs70-1/1999-167E-PDF
Peak inseason echosounded biomass, estimated from colour echograms, was tested as a measure of prefishery biomass. Prefishery biomass was estimated as the sum of catch, as determined from sales slips, and spawner biomass, as estimated by the escapement stock assessment model. Results of simple linear regression analyses showed there was no relationship between echosounded and prefishery biomass estimates. Therefore, the current inseason echosounding methodology does not provide any basis for modifying the fishing quota as determined using the current stock assessment methodology.
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| Department/Agency | Canada. Department of Fisheries and Oceans. Canada. Canadian Stock Assessment Secretariat. |
|---|---|
| Title | An evaluation of inseason echosounding estimates of British Columbian herring biomass / R.W. Tanasichuk. |
| Series title | Canadian Stock Assessment Secretariat research document, 1480-4883 ; 99/167 |
| Publication type | Series - View Master Record |
| Language | [English] |
| Format | Electronic |
| Electronic document | |
| Note(s) | Includes bibliographic references (p. [5]). |
| Publishing information | Ottawa : Fisheries and Oceans Canada, 1999. |
| Author / Contributor | Tanasichuk, Ronald W. |
| Description | [9] p. : fig., graphs, tables. |
| Catalogue number |
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| Subject terms | Fisheries resources Salt water fish Fisheries management |
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