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Biodiversity and sustainable exploitation of marine biological resources Jean-Yves PERROT

Biodiversity and sustainable exploitation of marine biological resources Jean-Yves PERROT IFREMER. Biodiversity and sustainable exploitation of marine biological resources. INTRODUCTION. Giuseppe Arcimboldo, 1527-1593. Three levels in biodiversity. Ecology. Species. Genetic.

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Biodiversity and sustainable exploitation of marine biological resources Jean-Yves PERROT

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  1. Biodiversity and sustainable exploitation of marine biological resources Jean-Yves PERROT IFREMER

  2. Biodiversity and sustainable exploitation of marine biological resources INTRODUCTION Giuseppe Arcimboldo, 1527-1593

  3. Three levels in biodiversity Ecology Species Genetic From B. Chevassus MNHN, Paris

  4. The marine ecosystem

  5. Mytilids, worms and bacteria by 1700m depth Ifremer A bathial scene by 600m depth Whitman college

  6. Red tides by dinoflagellates Unprocessed wastes Source: Sainsbury 2004

  7. Rapana from the Pacific (Black Sea, 1940) Crepidula from N-E America (GB, 1872) Mnemiopsis from America (Black sea, 1980) Ocinebrellus from Korea (France, 1995)

  8. Includes inland productions 140 120 Aquaculture share increases Aqua - culture 100 Collapse of peruvian anchovy Fisheries 80 Small pelagic share increases Millions tons 60 Stock deterioration 40 20 Technology developments 0 1950 1955 1960 1965 1970 1975 1980 1985 1990 1995 2000 From FAO : The State of World Fisheries and Aquaculture, 2004 Global resources from fisheries reached a plateau since 1985

  9. { : FAO (Garcia, Grainger & De Leiva, 2004) Source 1 % : Recovering R 7 D % : Depleted 7 5 % 7 5 % 16 % : Overexploited O 52% : Fully exploited F M 21 % : Moderately exploited U 3 % : Underexploited 0 20 30 40 50 % 10 Fish stocks are exploited at their maximum

  10. Biodiversity studies need sea- and land-based infrastructures

  11. Thank you for your attention!

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