ISSN:
1573-5117
Schlagwort(e):
estuary
;
tidal flats
;
benthic macrofauna
;
biosedimentology
;
population dynamics
;
environmental conditions
Quelle:
Springer Online Journal Archives 1860-2000
Thema:
Biologie
Notizen:
Abstract The study of the intertidal benthic population dynamics in three estuaries of the English Channel (Baie des Veys, Seine estuary, Baie de Somme:France) brings to light two types of species: u key-species which directly respond to the local disturbance of the environmental conditions in their densities (Spionidae, Capitellidae) and in their growth rates (Cerastoderma edule); target-species such as Macoma balthica which can endure brief changes in the environmental factors and shows no sign of long-lasting consequences on its population dynamics; yet, it fully integrates long-term changes through its numbers and productivity. The parallel between such a regular study of the seasonal variations on selected sites and various base line surveys allows the authors to discuss the COST 647 sampling programm in order to selectrms, range of temperature) from human disturbances (embankments, chemical pollution, eutrophication). Diverse hypothesis are suggested which bring about several research topics to be developed within a european cooperation.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1007/BF00026763
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