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Spatial and temporal variations of stygobite Amphipod populations in interstitial aquatic habitats of karst / floodplain interfaces in France and Morocco

Published online by Cambridge University Press:  01 February 2009

J. Mathieu ,
K. Essafi  and
H. Chergui
J. Mathieu
Affiliation:
Université Claude Bernard Lyon 1, ESA CNRS 5023 Ecologie des eaux douces et des grands fleuves, 43 bd du 11 novembre 1918, F-69622 Villeurbanne cedex, France.
K. Essafi
Affiliation:
Université Sidi Mohamed Ben Abdellah, Faculté des Sciences Dhar El Mehraz, laboratoire d'hydrobiologie et écologie générale, B.P. 1796 Fès-Atlas, Morocco
H. Chergui
Affiliation:
Université Sidi Mohamed Ben Abdellah, Faculté des Sciences Dhar El Mehraz, laboratoire d'hydrobiologie et écologie générale, B.P. 1796 Fès-Atlas, Morocco
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Abstract

Artificial substrates buried in stream sediments at the karst/floodplain interface were used to examine the spatial and temporal variations of the stygobite Amphipods Niphargus rhenorhodanensis (two stations in France) and Pseudoniphargus sp (one station in Morocco) populations. One station («Verna», France) was supplied by karst water. The other two stations («Pissoir», France and «Grotte du Chameau», Morocco) were supplied by both karst and surface waters. The dynamics of the populations was found to depend on several interacting factors: spates, geological characteristics, location of the sediment in relation to karstic water supplies and depth within the sediment.

Keywords

stygobite amphipodspopulation dynamicsinterfaceFranceMoroccoamphipodes stygobiesdynamique populationinterfaceFranceMaroc
Type
Research Article
Information
Annales de Limnologie - International Journal of Limnology , Volume 35 , Issue 2 , June 1999 , pp. 133 - 139
Copyright
© Université Paul Sabatier, 1999

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