A critique of the central assumption that marine ecosystems produce surplus fish that can be taken by commercial fishing.Hinweis: Dieser Artikel kann nur an eine deutsche Lieferadresse ausgeliefert werden.
Alan Longhurst began his career in fisheries science, but is best known as a biological oceanographer, being the first Director of the Southwest Fisheries Science Center of the US NMFS in La Jolla, California, and later the Director-General of the Bedford Institute of Oceanography in Nova Scotia, Canada. He produced the first estimate of global plant production in the oceans using satellite imagery, and also quantified vertical carbon flux through the planktonic ecosystem. More recently, in reaction to disastrous Canadian management of NW Atlantic cod stocks, he has offered a number of critical reviews of several aspects of fishery management science. He retired in 1995 and now divides his time between south-west France and Nova Scotia.
Inhaltsangabe
Preface 1. From certainty to doubt in fishery science 2. The ecological consequences of the extraordinary fecundity of teleosts 3. Indeterminate growth, negative senescence and longevity 4. Marine ecosystems: their structure and simulation 5. The natural variability of fish populations and fisheries 6. Has sustainability in fishing ever been achieved? 7. What is the real state of global fish populations? 8. The mechanics of fish population collapse 9. Why do some fish populations not recover after depletion? 10. Is the response of the fishery science community appropriate? 11. Conclusion: sustainability can be achieved rarely, and only under special conditions.
Preface 1. From certainty to doubt in fishery science 2. The ecological consequences of the extraordinary fecundity of teleosts 3. Indeterminate growth, negative senescence and longevity 4. Marine ecosystems: their structure and simulation 5. The natural variability of fish populations and fisheries 6. Has sustainability in fishing ever been achieved? 7. What is the real state of global fish populations? 8. The mechanics of fish population collapse 9. Why do some fish populations not recover after depletion? 10. Is the response of the fishery science community appropriate? 11. Conclusion: sustainability can be achieved rarely, and only under special conditions.
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