FN Archimer Export Format
PT J
TI Food availability modulates the combined effects of ocean acidification and warming on fish growth
BT 
AF Cominassi, Louise
   Moyano, Marta
   Claireaux, Guy
   Howald, Sarah
   Mark, Felix C.
   Zambonino-Infante, Jose-Luis
AS 1:1;2:1;3:2;4:1,3;5:1,3;6:4;
FF 1:;2:;3:;4:;5:;6:PDG-RBE-PFOM-LARN;
C1 Institute of Marine Ecosystem and Fisheries Science, Center for Earth System Research and Sustainability (CEN), University of Hamburg, 22767, Hamburg, Germany
   Université de Bretagne Occidentale, LEMAR (UMR 6539), Centre Ifremer de Bretagne, 29280, Plouzané, France
   Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, Integrative Ecophysiology, 27570, Bremerhaven, Germany
   Ifremer, LEMAR (UMR 6539), Laboratory of Adaptation, Reproduction and Nutrition of Fish, Centre Ifremer de Bretagne, 29280, Plouzané, France
C2 UNIV HAMBURG, GERMANY
   UBO, FRANCE
   INST A WEGENER, GERMANY
   IFREMER, FRANCE
SI BREST
SE PDG-RBE-PFOM-LARN
UM LEMAR
IN WOS Ifremer UMR
   WOS Cotutelle UMR
   DOAJ
   copubli-france
   copubli-europe
   copubli-univ-france
IF 4.379
TC 30
UR https://archimer.ifremer.fr/doc/00609/72074/70784.pdf
   https://archimer.ifremer.fr/doc/00609/72074/70785.pdf
LA English
DT Article
AB When organisms are unable to feed ad libitum they may be more susceptible to negative effects of environmental stressors such as ocean acidification and warming (OAW). We reared sea bass (Dicentrarchus labrax) at 15 or 20 °C and at ambient or high PCO2 (650 versus 1750 µatm PCO2; pH = 8.1 or 7.6) at ad libitum feeding and observed no discernible effect of PCO2 on the size-at-age of juveniles after 277 (20 °C) and 367 (15 °C) days. Feeding trials were then conducted including a restricted ration (25% ad libitum). At 15 °C, growth rate increased with ration but was unaffected by PCO2. At 20 °C, acidification and warming acted antagonistically and low feeding level enhanced PCO2 effects. Differences in growth were not merely a consequence of lower food intake but also linked to changes in digestive efficiency. The specific activity of digestive enzymes (amylase, trypsin, phosphatase alkaline and aminopeptidase N) at 20 °C was lower at the higher PCO2 level. Our study highlights the importance of incorporating restricted feeding into experimental designs examining OAW and suggests that ad libitum feeding used in the majority of the studies to date may not have been suitable to detect impacts of ecological significance. 
PY 2020
PD FEB
SO Scientific Reports
SN 2045-2322
PU Springer Science and Business Media LLC
VL 10
IS 1
UT 000562857800016
DI 10.1038/s41598-020-58846-2
ID 72074
ER

EF