Flanders Marine Institute

Platform for marine research

In:

IMIS

Publications | Institutes | Persons | Datasets | Projects | Maps
report an error in this recordbasket (0): add | show Printer-friendly version

Etude des populations de Sargassum muticum (Yendo) Fensholt sur les côtes de Basse-Normandie (France)
Givernaud, T.; Cosson, J.; Givernaud-Mouradi, A. (1991). Etude des populations de Sargassum muticum (Yendo) Fensholt sur les côtes de Basse-Normandie (France), in: Elliott, M. et al. (Ed.) (1991). Estuaries and coasts: spatial and temporal intercomparisons. pp. 129-132
In: Elliott, M.; Ducrotoy, J.-P. (Ed.) (1991). Estuaries and coasts: spatial and temporal intercomparisons. International symposium series, 1991. Olsen & Olsen: Fredensborg. ISBN 87-85215-17-1. VII, 390 pp., more
In: International symposium series, 1991, more

Available in Authors 

Keywords
    Introduced species; Sargassum (Bactrophycus) muticum (Yendo) Fensholt, 1955 [WoRMS]; Marine

Authors  Top 
  • Givernaud, T.
  • Cosson, J.
  • Givernaud-Mouradi, A.

Abstract
    The brown alga Sargassum muticum appeared on the French coasts thirteen years ago. In the framework of a National Programme different investigations have been undertaken on this seaweed. In Basse-Normandie distribution maps of the alga along the coast were drawn up: there are five important populations located on wide, flat, relatively sheltered shores with large ponds at low tide. The estimated biomass of this alga in Basse-Normandie amounts to 19 000 tons during its full development season. The evolution of three populations were studied over a year and differences were found to exist between the stations. The introduction and development of S. muticum along the coast of Basse-Normandie seem to have little effect on the environment. Only two species have suffered from the competition with this seaweed: Laminaria saccharina which has practically disappeared on the coast at Grandcamp, and Zostera marina which has been supplanted by S. muticum in parts of the beds injured by human activities.

 Top | Authors