TY  - JOUR
A1  - Linge Johnsen, Simen Alexander
A1  - Bollmann, Jörg
A1  - Gebühr, Christina
A1  - Herrle, Jens Olaf
T1  - Relationship between coccolith length and thickness in the coccolithophore species Emiliania huxleyi and Gephyrocapsa oceanica
T2  - PLoS one
N2  - Coccolith mass is an important parameter for estimating coccolithophore contribution to carbonate sedimentation, organic carbon ballasting and coccolithophore calcification. Single coccolith mass is often estimated based on the ks model, which assumes that length and thickness increase proportionally. To evaluate this assumption, this study compared coccolith length, thickness, and mass of seven Emiliania huxleyi strains and one Gephyrocapsa oceanica strain grown in 25, 34, and 44 salinity artificial seawater. While coccolith length increased with salinity in four E. huxleyi strains, thickness did not increase significantly with salinity in three of these strains. Only G. oceanica showed a consistent increase in length with salinity that was accompanied by an increase in thickness. Coccolith length and thickness was also not correlated in 14 of 24 individual experiments, and in the experiments in which there was a positive relationship r2 was low (<0.4). Because thickness did not increase with length in E. huxleyi, the increase in mass was less than expected from the ks model, and thus, mass can not be accurately estimated from coccolith length alone.
KW  - Salinity
KW  - Skewness
KW  - Calcification
KW  - Linear regression analysis
KW  - Statistical distributions
KW  - Oceans
KW  - Scanning electron microscopy
KW  - Carbon dioxide
Y1  - 2019
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/50661
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-506619
SN  - 1932-6203
N1  - Copyright: © 2019 Linge Johnsen et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
VL  - 14
IS  - (8): e0220725
SP  - 1
EP  - 23
PB  - PLoS
CY  - Lawrence, Kan.
ER  -