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Information Requirements for Salmon Management

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Abstract

Management of salmon takes place on three very different time scales, with substantially different data needs at each scale. Much mismanagement in the past has come from preoccupation with one of these scales, while using very simplistic data or assumptions about the others. For long-term management, the most fundamental need is to monitor and maintain suitable habitats. For the medium term (each salmon generation), the need will always be for empirical experience of the basic relationship between how many fish spawn and subsequent production of recruits, and how this relationship is linked to freshwater habitat factors subject to management. Knowing the key environmental factors that cause variation in the relationship would be helpful, but the most important need is to establish the average relationship so that managers can set wise escapement goals. For short-term or “inseason” management, where we try to meet both escapement goals defined by long-term studies and complex allocation goals, the most critical need today is for innovative abundance indexing systems to measure interannual variation in spatial distribution and timing of migration through fishing areas.

Keywords

  • British Columbia
  • Coho Salmon
  • Sockeye Salmon
  • Fishing Season
  • Oncorhynchus Kisutch

These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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© 1997 Springer Science+Business Media Dordrecht

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Walters, C. (1997). Information Requirements for Salmon Management. In: Stouder, D.J., Bisson, P.A., Naiman, R.J. (eds) Pacific Salmon & their Ecosystems. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-6375-4_7

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  • DOI: https://doi.org/10.1007/978-1-4615-6375-4_7

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