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Only a few stocks and time periods are represented here. Formal stock assessments have been launched in different years with early assessments based mostly on catches. Five British Columbia herring stocks have been combined into one, for presentational purposes. Initial estimates were assembled by D. Hay et al. (2001). Taking Stock: An Inventory and Review of World Herring Stocks in 2000. In Proceedings of the Symposium Herring 2000: Expectations for a New Millennium. University of Alaska Sea Grant, AK-SG-01-04, Fairbanks. 800pp.
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