FN Archimer Export Format
PT J
TI Nonlinear effects of body size and optical attenuation on Diel Vertical Migration by zooplankton
BT 
AF Ohman, Mark D.
   ROMAGNAN, Jean-Baptiste
AS 1:1;2:2;
FF 1:;2:;
C1 California Current Ecosystem LTER SiteScripps Institution of Oceanography, University of CaliforniaSan Diego La Jolla California
   Sorbonne Universités, UPMC Université Paris 06, UMR 7093, and CNRS, Observatoire océanologiqueF‐06230Villefranche‐sur‐mer France
C2 UNIV CALIF SAN DIEGO, USA
   UNIV SORB, FRANCE
IF 3.383
TC 71
UR https://archimer.ifremer.fr/doc/00827/93926/100508.pdf
LA English
DT Article
AB We adopt a trait-based approach to explain Diel Vertical Migration (DVM) across a diverse assemblage of planktonic copepods, utilizing body size as a master trait. We find a reproducible pattern of body size-dependence of day and night depths occupied, and of DVM. Both the smallest surface-dwelling and the largest deeper-dwelling copepods refrain from migrations, while intermediate-sized individuals show pronounced DVM. This pattern apparently arises as a consequence of size-dependent predation risk. In the size classes of migratory copepods the amplitude of DVM is further modulated by optical attenuation in the ocean water column because increased turbidity decreases encounter rates with visually hunting predators. Long-term changes in the ocean optical environment are expected to alter the vertical distributions of many copepods and thus to affect predator-prey encounters as well as oceanic carbon export. 
PY 2016
PD MAR
SO Limnology and Oceanography
SN 0024-3590
PU Wiley
VL 61
IS 2
UT 000372166500020
BP 765
EP 770
DI 10.1002/lno.10251
ID 93926
ER

EF