Reef FisheriesNicholas Polunin, Callum Roberts Chapman & Hall, 1 ene 1996 - 477 páginas Reef ecosystems extend throughout the tropics. Exploited by small-scale fishers, reefs supply food for millions of people, but, worldwide, there are growing worries about the productivity and current state of these ecosystems. Reef fish stocks display many features of fisheries elsewhere. However, habitat spatial complexity, biological diversity within and among species, ecosystem intricacy and variable means of exploitation make it hard to predict sustainable modes and levels of fishing. |
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Commerical Fishing: The Wider Ecological Impacts G. Moore,Simon Jennings No hay ninguna vista previa disponible - 2000 |
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