Historic changes in cod stocks and cod fisheries: Northeast Arctic cod ...
Observations made in Norwegian waters in this century have been used to interpret the fragmentary fishery and climate data from the period 1500 to 1900. During the Little Ice Age, lasting from about 1550 to 1850, the Northeast Arctic cod stock went through large fluctuations in stock size, as reflec...
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| Format: | Report |
| Language: | unknown |
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ICES Marine Science Symposia (1991–2003)
2023
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| Online Access: | https://dx.doi.org/10.17895/ices.pub.19271168 https://ices-library.figshare.com/articles/report/Historic_changes_in_cod_stocks_and_cod_fisheries_Northeast_Arctic_cod/19271168 |
| Summary: | Observations made in Norwegian waters in this century have been used to interpret the fragmentary fishery and climate data from the period 1500 to 1900. During the Little Ice Age, lasting from about 1550 to 1850, the Northeast Arctic cod stock went through large fluctuations in stock size, as reflected in catch per unit of effort and in overall catch. Behind these fluctuations may have been faltering recruitment in periods with very cold climate and lack of herring or capelin in the Barents Sea, two main prey organisms, as both these species also experienced stock fluctuations. The potential detrimental influence of young herring on the capelin stock in the Barents Sea is also considered. The quantity of drift ice around Iceland is considered as an indicator of both the general climate influencing cod recruitment and of the productivity in the main summer-feeding area for Norwegian spring-spawning herring, northeast of Iceland. The deterioration of this area's productivity has coincided repeatedly with ... |
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