The Exploitation of Evolving Resources: Proceedings of an International Conference, Held at Jülich, Germany, September 3-5, 1991

ISBN-13: 9783540572428 / Angielski / Miękka / 1993 / 264 str.

T. Kevin Stokes; Jacqueline M. McGlade; Richard Law

Opis

The volume contains papers presented at a symposium addressing the question of how the selective nature of harvesting of natural populations might causegenetic changes. Attention is focused on both theory and on data from experiments and real fish populations, with contributions from quantitative genetics, life-history theory, population genetics and fisheries. The volume opens with a review of harvesting induced changes in fish populations by Policansky and is followed by sixteen other papers split into four topics: selection differentials, reaction norms, selection responses and the consequences for management.

Spis treści

I — Selection Differentials.- Fishing as a cause of evolution in fishes.- Selection differentials in male and female North Sea plaice and changes in maturation and fecundity.- Growth and fecundity changes in flatfish.- The effects of fishing on the timing of maturity in North Sea cod (Gadus morhua L.).- Influence of human activity on properties of Atlantic salmon populations.- II — Reaction Norms.- Norms of reaction in fishes.- Individual variation in acquisition/allocation reaction norms.- Reaction norms for reproductive traits in brook trout and their influence on life history evolution affected by size-selective harvesting.- III — Selection Responses.- Trade-offs and genetic correlations among life-history traits: theory and simulation.- The evolution of size and growth in harvested natural populations.- Cohort-structured populations, selection responses, and exploitation of the North Sea cod.- IV — Management and Evolution.- Evolutionary stable optimal harvesting strategies.- Ecogenetic analysis and evolutionarily stable strategies in harvested populations.- Catastrophe-type regulation of pelagic fish stocks: adaptive management for evolving resources.- Size-selective harvesting and age-at-maturity. I: some theoretical implications for management of evolving resources.- Size-selective harvesting and age-at-maturity. II: real populations and management options.- Consequences of size-selective harvesting as an evolutionary game.- List of Participants.