FN Archimer Export Format
PT J
TI Anchovy population expansion in the North Sea
BT 
AF PETITGAS, Pierre
   ALHEIT, Juergen
   PECK, Myron A.
   RAAB, Kristina
   IRIGOIEN, Xabier
   HURET, Martin
   VAN DER KOOIJ, Jeroen
   POHLMANN, Thomas
   WAGNER, Carola
   ZARRAONAINDIA, Iratxe
   DICKEY-COLLAS, Mark
AS 1:1;2:2;3:3;4:4;5:5;6:1;7:6;8:7;9:2;10:8;11:4;
FF 1:PDG-RBE-EMH;2:;3:;4:;5:;6:PDG-RBE-STH-LBH;7:;8:;9:;10:;11:;
C1 IFREMER, F-44300 Nantes, France.
   Leibniz Inst Balt Sea Res Warnemunde, D-18119 Rostock, Germany.
   Univ Hamburg, Inst Hydrobiol & Fisheries Sci, D-22767 Hamburg, Germany.
   IMARES, Inst Marine Resources & Ecosyst Studies, NL-1970 AB Muiden, Netherlands.
   AZTI Tecnalia, Pasaia 20110, Gipuzkoa, Spain.
   CEFAS, Lowestoft NR33 0HT, Suffolk, England.
   Univ Hamburg, IFM, Inst Oceanog, D-22457 Hamburg, Germany.
   Univ Basque Country, Bilbao 48940, Spain.
C2 IFREMER, FRANCE
   LEIBNIZ INST BALT SEA RES (IOW), GERMANY
   UNIV HAMBURG, GERMANY
   IMARES, NETHERLANDS
   AZTI, SPAIN
   CEFAS, UK
   UNIV HAMBURG, GERMANY
   UNIV PAIS VASCO, SPAIN
SI NANTES
   BREST
SE PDG-RBE-EMH
   PDG-RBE-STH-LBH
IN WOS Ifremer jusqu'en 2018
   copubli-europe
IF 2.55
TC 83
UR https://archimer.ifremer.fr/doc/00060/17140/14638.pdf
LA English
DT Article
CR PEL 2000
   PEL 2001
   PELGAS 2002
   PELGAS 2003
   PELGAS 2004
   PELGAS 2005
   PELGAS 2006
   PELGAS 2007
   PELGAS 2008
   PELGAS 2009
BO Thalassa
DE ;Climate variability;Small pelagic fish;Regime shift;Temperature;Anchovy;North Sea
AB The abundance and spatial occupation of European anchovy Engraulis encrasicolus have increased in the North Sea since the mid-1990s. We use a cross-disciplinary approach combining genetics, transport modelling, survey time series analyses and physical oceanographic modelling to investigate 3 hypotheses on the reasons for this change. Evidence from connectivity studies suggests that the population of North Sea anchovy is separate from that in the Bay of Biscay. The recruitment pulses observed in survey data fit a life cycle which includes spawning in early summer and larval development in late summer. This also supports the concept of population expansion originating from local remnant population(s). In terms of growth physiology, suitable thermal windows have expanded, making conditions more favourable for life cycle closure and population persistence/productivity. In addition to the increased frequency of warm summers, which favour larvae and juvenile growth, the decrease in the number of severe winters is also likely to improve overwinter survival. Overall, the evidence supports the hypothesis that the increase in anchovy abundance originated from the improved productivity of existing populations. This increase was associated with an expansion in thermal habitats and is probably not due to a northward shift in the distribution of southern conspecifics.
PY 2012
SO Marine Ecology-progress Series
SN 0171-8630
PU Inter-research
VL 444
UT 000298970900001
BP 1
EP 13
DI 10.3354/meps09451
ID 17140
ER

EF