FN Archimer Export Format
PT J
TI The duration of migration of Atlantic Anguilla larvae
BT 
AF BONHOMMEAU, Sylvain
   CASTONGUAY, Martin
   RIVOT, Etienne
   SABATIE, Richard
   LE PAPE, Olivier
AS 1:1;2:2;3:1;4:1;5:1;
FF 1:PDG-DOP-DCM-HMT-RHSETE;2:;3:PDG-DOP-DCM-HMT-RHGUYANE;4:;5:;
C1 AGROCAMPUS OUEST, INRA AGROCAMPUS OUEST Ecol & St Ecosyst, Lab Ecol Halieut, UMR 985, F-35042 Rennes, France.
   Fisheries & Oceans Canada, Inst Maurice Lamontagne, Mont Joli, PQ G5H 3Z4, Canada.
C2 AGROCAMPUS OUEST, FRANCE
   MPO, CANADA
   IFREMER, FRANCE
SI SETE
   GUYANE
SE PDG-DOP-DCM-HMT-RHSETE
   PDG-DOP-DCM-HMT-RHGUYANE
IN WOS Ifremer jusqu'en 2018
   copubli-france
   copubli-int-hors-europe
IF 6.434
TC 54
UR https://archimer.ifremer.fr/doc/00011/12208/9033.pdf
LA English
DT Article
DE ;Lagrangian modelling;leptocephali;North Atlantic;otoliths;Sargasso Sea
AB Oceanic larvae of the European (Anguilla anguilla) and American (A. rostrata) eels have to cross the Atlantic Ocean from the Sargasso Sea to European or North American coasts before entering continental habitats. In some European rivers, eel recruitment is now < 1% of levels in the 1980s. A better understanding of the effects of anthropogenic pressures and environmental fluctuations on eel larvae and subsequent recruitment is a prerequisite to build efficient management plans. The present paper provides insight into the critical oceanic phase of the eel life cycle with a focus on the duration of the larval migration whose estimates varies between 7 months and more than 2 years in both species. Does this range correspond to a natural variability in larval duration or does it stem from methodological artefacts? We first review the different methods used to estimate the duration of larval migration and critically describe their possible sources of misinterpretation. We then evaluate the consistency of these methods with the current knowledge about the ecology and physiology of eel larvae and the physical oceanography. While a moderate discrepancy in migration duration was found between methods for the American eel, the discrepancy was large in the European eel. In this species, otolith microstructure studies indicated migration durations between 7 and 9 months, while other methods pointed to durations of about 2 years. We show that estimates in favour of a long migration duration seem more robust to methodological caveats than methods estimating short durations of migration.
PY 2010
PD SEP
SO Fish And Fisheries
SN 1467-2960
PU Wiley-blackwell Publishing, Inc
VL 11
IS 3
UT 000280669800006
BP 289
EP 306
DI 10.1111/j.1467-2979.2010.00362.x
ID 12208
ER

EF