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A Time-Series Study of Foraminiferal Assemblages of the Plym Estuary, South-West England

Published online by Cambridge University Press:  11 May 2009

Paul Castignetti
Paul Castignetti
Affiliation:
Department of Geological Sciences, University of Plymouth, Plymouth, PL4 8 AA
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Extract

Monthly samples retrieved from the previously unstudied Plym Estuary, from January 1994 to November 1994, were analysed for living and dead Foraminifera. An assemblage composed of three hyaline species; Haynesina germanica, Elphidium williamsoni and Ammonia beccarii var. batavus, was identified. Further samples were taken to assess depth distribution, microdistribution and lateral distribution, to compliment the original sample suite. A comparison of the dead assemblage to the live assemblage revealed similar species proportions in both assemblages, reduced test abundance in the dead assemblage, and the presence of rare estuarine and marine species in the dead assemblage. This study has revealed a complex interplay of species resulting in several foraminiferal blooms throughout the year; the largest occurring in May.

Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 76 , Issue 3 , August 1996 , pp. 569 - 578
Copyright
Copyright © Marine Biological Association of the United Kingdom 1996

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