Plankton ecology and the paleoceanographic climatic record

Auteur :
LOUBERE, P.

Description :
Case studies of the sediment record in the Atlantic for two species of planktonic Foraminifera, left-coiling Neogloboquadrina pachyderma (Ehrenberg) and Globigerinoides ruber (d'Orbigny), illustrate seasonal bias in environmental data reported by the relative abundances of species in deep-sea sediments. In addition, the study of G. ruber illustrates the operation of two oceanographic parameters in controlling a species distribution. These examples demonstrate that the environmental signal in the sediments is the result of the interplay of the ecological tolerance of the plankton species with seasonally variable biological and physical properties of the upper ocean.


Type de document :
Article de périodique

Source :
Quaternary research New York, 1982, vol. 17, n°. 3, p. 314-324, Références bibliographiques : 30 réf.

Date :
1982