FN Archimer Export Format
PT J
TI Gut fluorescence technique to quantify pigment feeding in Downs herring larvae
BT 
AF DENIS, Jeremy
   VINCENT, Dorothee
   ANTAJAN, Elvire
   VALLET, Carole
   MESTRE, Julie
   LEFEBVRE, Valerie
   CABOCHE, Josselin
   CORDIER, Remy
   MARCHAL, Paul
   LOOTS, Christophe
AS 1:1;2:2;3:1;4:2,3;5:2;6:1;7:1;8:1;9:1;10:1;
FF 1:PDG-RBE-HMMN-RHBL;2:;3:PDG-ODE-LITTORAL-LERBL;4:;5:;6:PDG-RBE-HMMN-LRHBL;7:PDG-RBE-HMMN-LRHBL;8:PDG-ODE-LITTORAL-LERBL;9:PDG-RBE-HMMN;10:PDG-RBE-HMMN-LRHBL;
C1 IFREMER, French Res Inst Sea, English Channel & North Sea Fisheries Res Unit, 150 Quai Gambetta, F-62321 Boulogne Sur Mer, France.
   Univ Lille, Univ Littoral Cote Opale, CNRS, LOG,UMR 8187,Lab Oceanol & Geosci, 32 Ave Foch, F-62930 Wimereux, France.
   Communaute Univ & Etab, Lille Nord France, Ecole Super Professorat & Educ, F-59658 Villeneuve Dascq, France.
C2 IFREMER, FRANCE
   UNIV LILLE, FRANCE
   ESPE, FRANCE
SI BOULOGNE
SE PDG-RBE-HMMN-RHBL
   PDG-ODE-LITTORAL-LERBL
   PDG-RBE-HMMN-LRHBL
   PDG-RBE-HMMN
IN WOS Ifremer jusqu'en 2018
   copubli-france
   copubli-univ-france
IF 2.359
TC 3
UR https://archimer.ifremer.fr/doc/00471/58223/60727.pdf
LA English
DT Article
CR IBTS INTERNATIONAL BOTTOM TRAWL SURVEY (IBTS),
DE ;Clupea harengus;Gut content analyses;Fish larval feeding;Chlorophyll pigment ingestion;Copepod;Daily metabolic needs
AB The ingestion of chlorophyll pigments (chlorophyll a and phaeopigments) by Downs herring Clupea harengus larvae (8-13 mm) collected in the English Channel and the North Sea during winter 2014 (International Bottom Trawl Survey) was quantitatively estimated via gut fluorescence analysis, a method classically used for copepods. Our results confirmed the consumption of chlorophyll pigments either directly, or indirectly through the consumption of herbivorous copepods. Higher mean pigment ingestion rates were observed for small larvae (8-11 mm, 52 ± 51 [SD] ng chl a eq. ind.-1 d-1), whereas lower mean rates (43 ± 48 ng chl a eq. ind.-1 d-1) were measured in larger larvae (12-13 mm). This decrease in the rate of pigment ingestion coincided with an ontogenetic shift in prey preference that occurred at 12-13 mm. Chlorophyll pigment ingestion covered on average up to 18% of the daily metabolic needs of 8-13 mm herring larvae and thus constitutes a non-negligible part of the larval diet mainly during the first feeding stages. Direct ingestion of autotrophic protist prey primarily involved small larvae (8-11 mm, 73 ± 38 to 84 ± 34%), as it can synergistically increase digestion efficiency of other prey items (e.g. copepods). The gut fluorescence method applied to fish larvae provides a global estimate of total ingested pigments and a snapshot of their diets. As a fast and easy method, it should be deployed in future surveys to compare food intake (ingestion) in different areas, and to quantitatively assess the nutritional status of fish larvae in the field. 
PY 2018
PD DEC
SO Marine Ecology Progress Series
SN 0171-8630
PU Inter-research
VL 607
UT 000452891600009
BP 129
EP 142
DI 10.3354/meps12775
ID 58223
ER

EF