The Exploitation of Evolving Resources

1. Front Matter

   Pages N2-VIII

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2. Selection Differentials

   1. Front Matter

      Pages 1-1

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   2. Fishing as a Cause of Evolution in Fishes

      • David Policansky

      Pages 1-18

   3. Selection Differentials in Male and Female North Sea Plaice and Changes in Maturation and Fecundity

      • A. D. Rijnsdorp

      Pages 19-36

   4. Growth and Fecundity Changes in Flatfish

      • Joseph Horwood

      Pages 37-43

   5. The Effects of Fishing on the Timing of Maturity in North Sea Cod (Gadus Morhua L.)

      • Catherine A Rowell

      Pages 44-61

   6. Influence of Human Activity on Properties of Atlantic Salmon Populations

      • A. F. Sharov, A. V. Zubchenko

      Pages 62-69

3. Reaction Norms

   1. Front Matter

      Pages 71-71

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   2. Norms of Reaction in Fishes

      • David N. Reznick

      Pages 72-90

   3. Individual Variation in Acquisition/Allocation Reaction Norms

      • Keith Nelson

      Pages 91-106

   4. Reaction Norms for Reproductive Traits in Brook Trout and Their Influence on Life History Evolution Affected by Size-Selective Harvesting

      • Jeffrey A. Hutchings

      Pages 107-125

4. Selection Responses

   1. Front Matter

      Pages 127-127

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   2. Trade-Offs and Genetic Correlations Among Life-History Traits: Theory and Simulation

      • R. H. Smith, L. A. Linton, R. M. Sibly

      Pages 128-144

   3. The Evolution of Size and Growth in Harvested Natural Populations

      • Mark Kirkpatrick

      Pages 145-154

   4. Cohort-Structured Populations, Selection Responses, and Exploitation of the North Sea Cod

      • Richard Law, Catherine A. Rowell

      Pages 155-173

5. Management and Evolution

   1. Front Matter

      Pages 175-175

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   2. Evolutionarily Stable Optimal Harvesting Strategies

      • D. R. Grey

      Pages 176-186

   3. Ecogenetic Analysis and Evolutionary Stable Strategies in Harvested Populations

      • Wayne M. Getz, Veijo Kaitala

      Pages 187-203

   4. Catastrophe-Type Regulation of Pelagic Fish Stocks: Adaptive Management for Evolving Resources

      • Philippe Cury

      Pages 204-221

   5. Size-Selective Harvesting and Age-At-Maturity I: Some Theoretical Implications for Management of Evolving Resources

      • S. P. Blythe, T. K. Stokes

      Pages 222-231

The impact of man on the biosphere is profound. Quite apart from our capacity to destroy natural ecosystems and to drive species to extinction, we mould the evolution of the survivors by the selection pressures we apply to them. This has implications for the continued health of our natural biological resources and for the way in which we seek to optimise yield from those resources. Of these biological resources, fish stocks are particularly important to mankind as a source of protein. On a global basis, fish stocks provide the major source of protein for human consumption from natural ecosystems, amounting to some seventy million tonnes in 1970. Although fisheries management has been extensively developed over the last century, it has not hitherto considered the evolutionary consequences of fishing activity. While this omission may not have been serious in the past, the ever increasing intensity of exploitation and the deteriorating health of fish stocks has generated an urgent need for a better understanding of evolution driven by harvesting and the implications of this for fish stock management. The foundations for this understanding for the most part come from recent developments in evolutionary biology and are not generally available to fisheries scientists. The purpose of this book is to provide this basis in a form that is both accessible and relevant to fisheries biology.

• Evolution
• calculus
• exploitation
• fisheries
• fishing
• genetics
• resource management
• selection

• Fisheries Laboratory, MAFF, Lowestoft, UK

  Kevin Stokes

• Department of Biological Sciences, University of Warwick, Coventry, UK

  Jacqueline M. McGlade

• Department of Biology, University of York, York, UK

  Richard Law

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