Northwest Atlantic mackerel stock assessment - 1981 / by J.J. Maguire. : Fs70-8/81-18E-PDF
"An index of effort calculated from the USA commercial catch rate was used to fine tune ages 6-7-8 fishing mortalities. A 1980 F = 0.066 was considered to best represent the ages 6 and older stock status. partial recruitment on age 2 was adjusted to obtain a 1978 year-class size at age 1 of 2 billion fish while P.R. on ages 1, 3, 4, and 5 were adjusted to obtain year-class size at age 1 of approximately the smallest size observed. Various Y/R calculations and projections were made. These indicated that a 1982 catch of 115,000 mt would not adversely affect the stock status."--Abstract.
Permanent link to this Catalogue record:
publications.gc.ca/pub?id=9.875003&sl=0
| Department/Agency | Canada. Department of Fisheries and Oceans. Scotia-Fundy Region. Marine Fish Division. Bedford Institute of Oceanography. |
|---|---|
| Title | Northwest Atlantic mackerel stock assessment - 1981 / by J.J. Maguire. |
| Series title | CAFSAC research document ; 81/18 |
| Publication type | Series - View Master Record |
| Language | [English] |
| Format | Electronic |
| Electronic document | |
| Note(s) | Digitized edition from print [produced by Department of Fisheries and Oceans]. "Not to be cited without permission of author." Includes bibliographical references. Includes abstract in French. |
| Publishing information | Dartmouth, Nova Scotia : Bedford Institute of Oceanography, Marine Fish Division, Department of Fisheries & Oceans,[1981] |
| Author / Contributor | Maguire, Jean-Jacques, 1953- |
| Description | 1 online resource (22 pages) : illustrations. |
| Catalogue number |
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| Subject terms | Salt water fish Surveys |