FN Archimer Export Format
PT J
TI Copepod Feeding Responses to Changes in Coccolithophore Size and Carbon Content
BT 
AF Toullec, Jordan
   Delegrange, Alice
   Perruchon, Adélaïde
   Duong, Gwendoline
   Cornille, Vincent
   Brutier, Laurent
   Hermoso, Michaël
AS 1:1;2:1,2;3:1;4:3;5:1;6:1;7:1;
FF 1:;2:;3:;4:;5:;6:;7:;
C1 Laboratoire d’Océanologie et de Géosciences—UMR 8187 LOG, CNRS, Université Littoral Côte d’Opale, F-62930 Wimereux, France
   Institut national supérieur du professorat et de l’éducation, Académie de Lille—Hauts de France, F-59658 Villeneuve d’Ascq, France
   Laboratoire d’Océanologie et de Géosciences—UMR 8187 LOG, CNRS, Université de Lille, F-59000 Lille, France
C2 UNIV LITTORAL COTE D'OPALE, FRANCE
   INSPE, FRANCE
   UNIV LILLE, FRANCE
IN DOAJ
IF 2.9
TC 1
UR https://archimer.ifremer.fr/doc/00807/91913/97868.pdf
LA English
DT Article
BO Sepia II
DE ;coccolithophore;elemental stoichiometry;copepods;gut content;ingestion rate;fecal pellet egestion;functional response
AB Phytoplankton stoichiometry and cell size could result from both phenology and environmental change. Zooplankton graze on primary producers, and this drives both the balance of the ecosystem and the biogeochemical cycles. In this study, we performed incubations with copepods and coccolithophores including different prey sizes and particulate carbon contents by considering phytoplankton biovolume concentration instead of chlorophyll a level (Chl a) as is usually performed in such studies. The egestion of fecal pellet and ingestion rates were estimated based on a gut fluorescence method. The latter was calibrated through the relationship between prey Chl a level and the biovolume of the cell. Chl a/biovolume ratio in phytopkanton has to be considered in the copepod gut fluorescent content method. Both coccolithophore biovolume and particulate inorganic/organic carbon ratios affect the food foraging by copepods. Finally, we observed a non-linear relationship between ingestion rates and fecal pellet egestion, due to the presence of calcite inside the copepod’s gut. These results illustrate that both prey size and stoichiometry need to be considered in copepod feeding dynamics, specifically regarding the process leading to the formation of fecal pellets. 
PY 2022
PD DEC
SO Journal Of Marine Science And Engineering
SN 2077-1312
PU MDPI AG
VL 10
IS 12
UT 000901347300001
DI 10.3390/jmse10121807
ID 91913
ER

EF