The Biomass Spectrum: A Predator Prey Theory of Aquatic Production (Complexity in Ecological Systems)

The Biomass Spectrum: A Predator Prey Theory of Aquatic Production (Complexity in Ecological Systems)

By: L. M. Dickie (author), S. R. Kerr (author)Paperback

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Description

Kerr and Dickie propose the development of a new ecological theory, one that can lead to a more effective remedy for the drastic effects of heavy fishing on natural communities of organisms in both marine and freshwater environments. By plotting the densities of the biomass of all organisms in a given community by body-size classes, the authors provide empirical evidence of what they term "the biomass body-size spectrum" in the world's oceans. After examining this evidence, they propose an underlying theory of predator-prey energy transfer: larger species eat smaller species, providing energy exchange across all species within an ecosystem. Providing the first comprehensive synthesis of the energy flow within the biomass spectrum, this book demonstrates not only a new understanding of the self-organizing properties of ecological production systems but also the potential of the biomass spectrum methodology for offering practical remedies when these natural systems are exploited by humans.

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About Author

Stephen R. Kerr is Cox Fisheries Scientist-in-Residence in the Department of Biology at Dalhousie University. Lloyd M. Dickie is a scientist emeritus at the Bedford Oceanographic Institute and a fellow of the Royal Society of Canada.

Contents

Choosing and Organizing Observations and ExperiencesThe Empirical EvidenceThe Detailed Structure of the SpectrumToward a Mathematical ModelFeeding Relationships in the SpectrumPhysiological Bases for SpectraSystem Properties of Biomass SpectraAlternative Views of the System Underlying FisheriesLevels of Ecological System OutputImplications for Fisheries ManagementFinal Observations

Product Details

  • publication date: 08/08/2001
  • ISBN13: 9780231084598
  • Format: Paperback
  • Number Of Pages: 352
  • ID: 9780231084598
  • weight: 499
  • ISBN10: 0231084595

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