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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publications.gc.ca/pub?id=9.805564&sl=1
| Ministère/Organisme | Canada. Department of Fisheries and Oceans. Canada. Canadian Stock Assessment Secretariat. |
|---|---|
| Titre | An evaluation of inseason echosounding estimates of British Columbian herring biomass / R.W. Tanasichuk. |
| Titre de la série | Canadian Stock Assessment Secretariat research document, 1480-4883 ; 99/167 |
| Type de publication | Série - Voir l'enregistrement principal |
| Langue | [Anglais] |
| Format | Électronique |
| Document électronique | |
| Note(s) | Includes bibliographic references (p. [5]). |
| Information sur la publication | Ottawa : Fisheries and Oceans Canada, 1999. |
| Auteur / Contributeur | Tanasichuk, Ronald W. |
| Description | [9] p. : fig., graphs, tables. |
| Numéro de catalogue |
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| Descripteurs | Fisheries resources Salt water fish Fisheries management |
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