Fortune Bay herring : a stock in the process of executing the limbo / by G.H. Winters and J.A. Moores.: Fs70-8/80-76E-PDF
"During the past pentad (1975-80) annual landings of herring in Fortune Bay averaged about 750 t compared with an average of 8000 t for the previous pentad (1969-74). Recently bar seines have replaced purse-seines as the major gear component. The moderate 1974 year-class continues to dominate removals; year-classes since 1974 have been extremely poor. Analyses of biomass levels based on gillnet catch-rate data (1978-80) indicate that the abundance of Fortune Bay herring have been relatively low since the mid-1970's due mainly to a combination of excessive fishing mortalities during the early 1970's and to a sequential production of extremely weak year-classes since then. Biomass levelsare projected to decline to an historical low of 2000 t in 1981. Management action should therefore be directed towards reducing the 1981 catch to the lowest practical level to ensure maximum egg deposition."--Abstract.
Permanent link to this Catalogue record:
publications.gc.ca/pub?id=9.872481&sl=0
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| Title | Fortune Bay herring : a stock in the process of executing the limbo / by G.H. Winters and J.A. Moores. |
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| Publication type | Monograph - View Master Record |
| Language | [English] |
| Format | Digital text |
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| Description | 1 online resource (17 pages) : illustrations, map. |
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