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A global compilation of coccolithophore calcification rates

A global compilation of coccolithophore calcification rates
A global compilation of coccolithophore calcification rates

The biological production of calcium carbonate (CaCO3), a process termed calcification, is a key term in the marine carbon cycle. A major planktonic group responsible for such pelagic CaCO3 production (CP) is the coccolithophores, single-celled haptophytes that inhabit the euphotic zone of the ocean. Satellitebased estimates of areal CP are limited to surface waters and open-ocean areas, with current algorithms utilising the unique optical properties of the cosmopolitan bloom-forming species Emiliania huxleyi, whereas little understanding of deep-water ecology, optical properties or environmental responses by species other than E. huxleyi is currently available to parameterise algorithms or models. To aid future areal estimations and validate future modelling efforts we have constructed a database of 2765 CP measurements, the majority of which were measured using 12 to 24 h incorporation of radioactive carbon (14C) into acid-labile inorganic carbon (CaCO3). We present data collated from over 30 studies covering the period from 1991 to 2015, sampling the Atlantic, Pacific, Indian, Arctic and Southern oceans. Globally, CP in surface waters (< 20 m) ranged from 0.01 to 8398 μmol Cm3 d1 (with a geometric mean of 16.1 μmol Cm3 d1). An integral value for the upper euphotic zone (herein surface to the depth of 1% surface irradiance) ranged from < 0:1 to 6 mmol Cm2 d1 (geometric mean 1.19 mmol Cm2 d1). The full database is available for download from PANGAEA at https://doi.org/10.1594/PANGAEA.888182.

1866-3508
1859-1876
Daniels, Chris J.
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Poulton, Alex J.
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Balch, William M.
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Marañón, Emilio
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Adey, Tim
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Bowler, Bruce C.
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Cermeño, Pedro
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Charalampopoulou, Anastasia
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Crawford, David W.
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Drapeau, Dave
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Feng, Yuanyuan
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Fernández, Ana
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Fernández, Emilio
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Fragoso, Glaucia M.
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González, Natalia
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Graziano, Lisa M.
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Heslop, Rachel
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Holligan, Patrick M.
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Hopkins, Jason
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Huete-Ortega, Maria
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Hutchins, David A.
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Lam, Phoebe J.
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Lipsen, Michael S.
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López-Sandoval, Daffne C.
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Loucaides, Socratis
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Marchetti, Adrian
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Mayers, Kyle M.J.
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Rees, Andrew P.
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Sobrino, Cristina
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Tynan, Eithne
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Tyrrell, Toby
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Daniels, Chris J.
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Poulton, Alex J.
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Balch, William M.
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Marañón, Emilio
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Adey, Tim
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Bowler, Bruce C.
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Cermeño, Pedro
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Charalampopoulou, Anastasia
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Crawford, David W.
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Drapeau, Dave
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Feng, Yuanyuan
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Fernández, Ana
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Fernández, Emilio
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Fragoso, Glaucia M.
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González, Natalia
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Graziano, Lisa M.
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Heslop, Rachel
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Holligan, Patrick M.
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Hopkins, Jason
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Huete-Ortega, Maria
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Hutchins, David A.
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Lam, Phoebe J.
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Lipsen, Michael S.
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López-Sandoval, Daffne C.
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Loucaides, Socratis
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Marchetti, Adrian
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Mayers, Kyle M.J.
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Rees, Andrew P.
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Sobrino, Cristina
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Tynan, Eithne
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Tyrrell, Toby
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Daniels, Chris J., Poulton, Alex J., Balch, William M., Marañón, Emilio, Adey, Tim, Bowler, Bruce C., Cermeño, Pedro, Charalampopoulou, Anastasia, Crawford, David W., Drapeau, Dave, Feng, Yuanyuan, Fernández, Ana, Fernández, Emilio, Fragoso, Glaucia M., González, Natalia, Graziano, Lisa M., Heslop, Rachel, Holligan, Patrick M., Hopkins, Jason, Huete-Ortega, Maria, Hutchins, David A., Lam, Phoebe J., Lipsen, Michael S., López-Sandoval, Daffne C., Loucaides, Socratis, Marchetti, Adrian, Mayers, Kyle M.J., Rees, Andrew P., Sobrino, Cristina, Tynan, Eithne and Tyrrell, Toby (2018) A global compilation of coccolithophore calcification rates. Earth System Science Data, 10 (4), 1859-1876. (doi:10.5194/essd-10-1859-2018).

Record type: Article

Abstract

The biological production of calcium carbonate (CaCO3), a process termed calcification, is a key term in the marine carbon cycle. A major planktonic group responsible for such pelagic CaCO3 production (CP) is the coccolithophores, single-celled haptophytes that inhabit the euphotic zone of the ocean. Satellitebased estimates of areal CP are limited to surface waters and open-ocean areas, with current algorithms utilising the unique optical properties of the cosmopolitan bloom-forming species Emiliania huxleyi, whereas little understanding of deep-water ecology, optical properties or environmental responses by species other than E. huxleyi is currently available to parameterise algorithms or models. To aid future areal estimations and validate future modelling efforts we have constructed a database of 2765 CP measurements, the majority of which were measured using 12 to 24 h incorporation of radioactive carbon (14C) into acid-labile inorganic carbon (CaCO3). We present data collated from over 30 studies covering the period from 1991 to 2015, sampling the Atlantic, Pacific, Indian, Arctic and Southern oceans. Globally, CP in surface waters (< 20 m) ranged from 0.01 to 8398 μmol Cm3 d1 (with a geometric mean of 16.1 μmol Cm3 d1). An integral value for the upper euphotic zone (herein surface to the depth of 1% surface irradiance) ranged from < 0:1 to 6 mmol Cm2 d1 (geometric mean 1.19 mmol Cm2 d1). The full database is available for download from PANGAEA at https://doi.org/10.1594/PANGAEA.888182.

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Accepted/In Press date: 23 September 2018
e-pub ahead of print date: 16 October 2018
Published date: 16 October 2018

Identifiers

Local EPrints ID: 425972
URI: https://eprints.soton.ac.uk/id/eprint/425972
ISSN: 1866-3508
PURE UUID: d55b903b-f72a-43ed-9182-ea8a85b36358
ORCID for Toby Tyrrell: ORCID iD orcid.org/0000-0002-1002-1716

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Date deposited: 08 Nov 2018 17:30
Last modified: 14 Mar 2019 01:51

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Contributors

Author: Chris J. Daniels
Author: Alex J. Poulton
Author: William M. Balch
Author: Emilio Marañón
Author: Tim Adey
Author: Bruce C. Bowler
Author: Pedro Cermeño
Author: Anastasia Charalampopoulou
Author: David W. Crawford
Author: Dave Drapeau
Author: Yuanyuan Feng
Author: Ana Fernández
Author: Emilio Fernández
Author: Glaucia M. Fragoso
Author: Natalia González
Author: Lisa M. Graziano
Author: Rachel Heslop
Author: Patrick M. Holligan
Author: Jason Hopkins
Author: Maria Huete-Ortega
Author: David A. Hutchins
Author: Phoebe J. Lam
Author: Michael S. Lipsen
Author: Daffne C. López-Sandoval
Author: Socratis Loucaides
Author: Adrian Marchetti
Author: Andrew P. Rees
Author: Cristina Sobrino
Author: Eithne Tynan
Author: Toby Tyrrell ORCID iD

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