Shelf rockfish assessment for 1998 and recommended yield options for 1999 / R. Stanley.: Fs70-1/1999-53E-PDF
Interim assessments are provided for silvergray, widow, yellowtail and canary rockfish. Harvest recommendations for all stocks are unchanged from last year. Stock assessment research in 1998 focused on acoustic biomass estimation of mid-winter aggregation of widow rockfish. The mid-winter aggregation near Triangle Island is well known to fishers. They suggested that the aggregation might, if estimated, be large enough to alter Department perceptions of harvest limits. A joint Fisheries and Oceans and Industry survey aboard the C.G.R.S. W.E. Ricker and Fishing Vessel Frosti was conducted in January-February 1998. The aggregation was surveyed 20 times with a maximum estimate of 2,000 t of widow rockfish. This biomass observation was not sufficient to alter current yield recommendations.
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| Department/Agency | Canada. Department of Fisheries and Oceans. Canada. Canadian Stock Assessment Secretariat. |
|---|---|
| Title | Shelf rockfish assessment for 1998 and recommended yield options for 1999 / R. Stanley. |
| Series title | Canadian Stock Assessment Secretariat research document, 1480-4883 ; 99/53 |
| Publication type | Series - View Master Record |
| Language | [English] |
| Format | Electronic |
| Electronic document | |
| Note(s) | Includes bibliographical references (p. 16-17). |
| Publishing information | Ottawa : Fisheries and Oceans Canada, 1999. |
| Author / Contributor | Stanley, Richard David,1950- |
| Description | 36 p. : fig., graphs, tables. |
| Catalogue number |
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| Subject terms | Fisheries resources Salt water fish Fishing area Fisheries management |
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