Does the settling column method underestimate phytoplankton sinking speeds?
Does the settling column method underestimate phytoplankton sinking speeds?
复制标题
沉降柱方法是否低估了浮游植物的下沉速度?
DOI:
10.1098/rsos.231455
复制
发表时间:
2024
影响因子:
3.5
通讯作者:
Gemmell, Brad J.
中科院分区:
文献类型:
--
作者:
Du Clos, Kevin T.;Gemmell, Brad J.
Phytoplankton sinking is a major component of vertical ocean carbon and nutrient fluxes, and sinking is an integral component of phytoplankton biology and ecology. Much of our understanding of phytoplankton sinking derives from the settling column method (SETCOL) in which sinking speeds are calculated from the proportion of cells reaching the bottom of a water-filled column after a set time. Video-based methods are a recent alternative to SETCOL in which sinking speeds are measured by tracking the movement of individual cells in a salinity-stratified water column. In this study, we present the results of a meta-analysis showing that SETCOL produces significantly and consistently lower sinking speeds than the video method. Next, we perform a particle image velocimetry analysis, which shows that the observed discrepancy in sinking speeds between the two methods can probably be explained by weak convection currents in the SETCOLs. Finally, we discuss the implications of these results for the interpretation of past and future phytoplankton sinking speed measurements and models that rely on those measurements.
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DOI:
--
发表时间:
--
期刊:
影响因子:
--
作者:
C. Apstein
通讯作者:
C. Apstein
影响因子:
4.5
作者:
Du Clos, Kevin T.;Karp-Boss, Lee;Gemmell, Brad J.
通讯作者:
Gemmell, Brad J.
DOI:
--
发表时间:
1988
期刊:
影响因子:
--
作者:
U. Geigenmüller;P. Mazur
通讯作者:
P. Mazur
DOI:
--
发表时间:
1995
期刊:
影响因子:
--
作者:
D. McGillicuddy
通讯作者:
D. McGillicuddy
DOI:
--
发表时间:
1998
期刊:
影响因子:
--
作者:
P. Pondaven;C. Fravalo;D. Ruiz;P. Tréguer;B. Quéguiner;C. Jeandel
通讯作者:
C. Jeandel