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Importance of size measurements for coccolith carbonate flux estimates

Karl-Heinz Baumann
Importance of size measurements for coccolith carbonate flux estimates (in Advances in biology, ecology and taphonomy of extant calcareous nannoplankton, Maria V. Triantaphyllou (prefacer))
Micropaleontology (December 2004) 50, Suppl. 1: 35-43


Reliable estimates of coccolith masses of the different species are an important prerequisite in determining coccolith carbonate fluxes. This paper presents data from sediment trap samples that were analysed in order to determine the contribution of coccolithophores to the flux through the water column and to compare relative flux contribution based on different size estimates. Biometrical analyses of distinct coccolith species were therefore performed on samples from four additional time-series stations. Besides analysing the numerically dominant taxa Emiliania huxleyi and Florisphaera profunda, measurements have been made on Calcidiscus leptoporus, Gephyrocapsa oceanica, Helicosphaera carteri and Syracosphaera pulchra. This study strongly reinforces the previous conclusion that size calibrations are essential for reliable results, i.e. that the superficially attractive alternative of adopting "standard" size estimates for species is an invalid approach. The most extreme example of variable volume calculation is given for C. leptoporus. Mean size plots differ significantly from different regions, either with large, intermediate or small coccoliths dominating. The variability in size is likely to result in an approximately three-fold variability in carbonate mass contribution.

ISSN: 0026-2803
Serial Title: Micropaleontology
Serial Volume: 50, Suppl. 1
Title: Importance of size measurements for coccolith carbonate flux estimates
Title: Advances in biology, ecology and taphonomy of extant calcareous nannoplankton
Author(s): Baumann, Karl-Heinz
Author(s): Triantaphyllou, Maria V.prefacer
Affiliation: Universitaet Bremen, FB Geowissenschaften, Bremen, Federal Republic of Germany
Affiliation: University of Athens, Athens, Greece
Pages: 35-43
Published: 20041201
Text Language: English
Publisher: American Museum of Natural History, New York, NY, United States
Meeting name: International Nannoplankton Association workshop on Extant coccolithophorid research
Meeting location: Heraklion, GRC, Greece
Meeting date: 20031001Oct. 1-6, 2003
References: 37
Accession Number: 2006-007119
Categories: Paleobotany
Document Type: Serial Conference document
Bibliographic Level: Analytic
Illustration Description: illus. incl. 1 table
S20°03'00" - S20°03'00", E09°09'00" - E09°09'00"
N00°01'00" - N00°01'00", W23°26'60" - W23°26'60"
N29°15'00" - N29°15'00", W15°46'60" - W15°46'60"
N54°40'60" - N54°40'60", W21°10'00" - W21°10'00"
S29°11'60" - S29°11'60", E13°07'00" - E13°07'00"
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Abstract, Copyright, Micropaleontology Project. Reference includes data from GeoScienceWorld, Alexandria, VA, United States
Update Code: 200604
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