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Seabirds in the shelf edge waters bordering the Banc d’Arguin, Mauritania, in May

  • M. F. Leopold
Conference paper
Part of the Developments in Hydrobiology 86 book series (DIHY, volume 86)

Abstract

Seabird distribution was mapped over the shelf off the Banc d’Arguin, Mauritania, in May 1988 at the end of the upwelling season. Storm-petrels (Oceanitidae), were the most numerous with an average density of 14.5 km-2. They were most abundant over water-patches rich in primary production or Zooplankton, but the simultaneous presence of trawlers in these areas made it impossible to relate seabird density directly to hydrography. The trawlers attracted the seabirds and their waste served as an important source of food. The most numerous species in the area was the Wilson’s Storm-petrel Oceanites oceanicus. Northern-hemisphere migrants, including summering sub-adults also used the area in numbers, and they too, profited from the fisheries. The Royal Tern Sterna maxima was the only local breeding seabird reaching the shelf slope area.

Key words

seabirds Storm-petrels upwelling atlantic Mauritania Banc d’Arguin 

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Copyright information

© Springer Science+Business Media Dordrecht 1993

Authors and Affiliations

  • M. F. Leopold
    • 1
  1. 1.Netherlands Institute for Sea Research (NIOZ)Den BurgThe Netherlands

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