FN Archimer Export Format
PT C
TI Feeding strategy of Downs herring larvae in the English Channel and North Sea
BT 
AF DENIS, Jeremy
   VALLET, Carole
   VINCENT, Dorothée
   COURCOT, Lucie
   MARCHAL, Paul
   LOOTS, Christophe
AS 1:1;2:2,3;3:2;4:2;5:1;6:1;
FF 1:PDG-RBE-HMMN-RHBL;2:;3:;4:;5:PDG-RBE-HMMN-RHBL;6:PDG-RBE-HMMN-RHBL;
C1 IFREMER, Laboratoire Ressources Halieutiques, F-62200 Boulogne-Sur-Mer, France.
   ULCO, LOG, UMR CNRS 8187, F-62930 Wimereux, France.
   Ecole Supérieure du Professorat et de l'Education, F-59100 Lille, France.
C2 IFREMER, FRANCE
   ULCO, FRANCE
   ESPE, FRANCE
SI BOULOGNE
   WIMEREUX
SE PDG-RBE-HMMN-RHBL
   AUTRE
UR https://archimer.ifremer.fr/doc/00255/36608/35174.pdf
LA English
DT Poster
CR IBTS 2008
   IBTS 2009
   IBTS 2010
   IBTS 2011
   IBTS 2012
   IBTS 2013
   IBTS 2014
BO Thalassa
AB The aim of this study was to characterize the feeding strategy of Downs herring larvae at "critical period" during winter in the English Channel and North Sea was defined to assess whether nutrition is responsible for low recruitment in stocks over the past years. Data collected during the French part of the International Bottom Trawl Survey from 2008 to 2014 were used to analyse fish larvae diet by direct observation using Scanning Electron Microscope (SEM). Gut content methods generally used for copepods was adapted to fish larvae to assess phytoplankton ingestion. The relative importance of small preys (0,5-375µm) observed in gut contents proved the essential role of SEM to better acknowledge Downs herring diet. We demonstrated that Downs herring larvae from 6 to 20 mm were omnivorous, specialized on invertebrate eggs and more rarely consumed a variety of phytoplankton and zooplankton prey. They also seemed to positively select rare phytoplankton prey whereas they negatively select several zooplankton prey.
PY 2014
PD OCT
ID 36608
ER

EF