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Hydrology and underwater climate of the Banc d’Arguin, Mauritania: a review

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Ecological Studies in the Coastal Waters of Mauritania

Part of the book series: Developments in Hydrobiology 86 ((DIHY,volume 86))

Abstract

The northern coast of Mauritania between Cap Blanc and Cap Timiris is characterized by a large variety of hydrological situations. At the western slope of the Banc d’Arguin, at a depth of about 20 m, the underwater climate is essentially of a temperate character. This is a highly unstable area due to the occurrence of upwellings and the movements of the intertropical front. Close to the coast the isolation of water masses by the very shallow Banc d’Arguin results in an increase of temperature and salinity. These factors show a gradient towards the South from Cap.St. Anne to the islands. In this region the underwater climate is tropical, a feature which is most clearly expressed in land-locked bays such as the Baie d’Arguin, the area around the island of Tidra, and the Baie de St. Jean. In the latter bay the conditions are most extreme (salinity > 80%o). Due to the coastal topography the area of the islands around Tidra is highly isolated. This area receives no fertilization from the upwellings offshore.

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W. J. Wolff J. van der Land P. H. Nienhuis P. A. W. J. de Wilde

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© 1993 Springer Science+Business Media Dordrecht

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Sevrin-Reyssac, J. (1993). Hydrology and underwater climate of the Banc d’Arguin, Mauritania: a review. In: Wolff, W.J., van der Land, J., Nienhuis, P.H., de Wilde, P.A.W.J. (eds) Ecological Studies in the Coastal Waters of Mauritania. Developments in Hydrobiology 86, vol 86. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-1986-3_1

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  • DOI: https://doi.org/10.1007/978-94-011-1986-3_1

  • Publisher Name: Springer, Dordrecht

  • Print ISBN: 978-94-010-4877-4

  • Online ISBN: 978-94-011-1986-3

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