FN Archimer Export Format
PT J
TI Spatio-Temporal Variability of the North Sea Cod Recruitment in Relation to Temperature and Zooplankton
BT 
AF NICOLAS, Delphine
   ROCHETTE, Sebastien
   LLOPE, Marcos
   LICANDRO, Priscilla
AS 1:1;2:2;3:3;4:1;
FF 1:;2:PDG-ODE-DYNECO-AG;3:;4:;
C1 Sir Alister Hardy Fdn Ocean Sci, Plymouth, Devon, England.
   IFREMER, Dept Coastal Environm Dynam, Plouzane, France.
   Ctr Oceanog Cadiz, Inst Espanol Oceanog, Cadiz, Andalucia, Spain.
C2 SIR ALISTER HARDY FDN OCEAN SCI, UK
   IFREMER, FRANCE
   IEO, SPAIN
SI BREST
SE PDG-ODE-DYNECO-AG
IN WOS Ifremer jusqu'en 2018
   DOAJ
   copubli-europe
IF 3.234
TC 23
UR https://archimer.ifremer.fr/doc/00181/29250/27654.pdf
LA English
DT Article
CR IBTS INTERNATIONAL BOTTOM TRAWL SURVEY (IBTS),
AB The North Sea cod (Gadus morhua, L.) stock has continuously declined over the past four decades linked with overfishing and climate change. Changes in stock structure due to overfishing have made the stock largely dependent on its recruitment success, which greatly relies on environmental conditions. Here we focus on the spatio-temporal variability of cod recruitment in an effort to detect changes during the critical early life stages. Using International Bottom Trawl Survey (IBTS) data from 1974 to 2011, a major spatio-temporal change in the distribution of cod recruits was identified in the late 1990s, characterized by a pronounced decrease in the central and southeastern North Sea stock. Other minor spatial changes were also recorded in the mid-1980s and early 1990s. We tested whether the observed changes in recruits distribution could be related with direct (i. e. temperature) and/or indirect (i. e. changes in the quantity and quality of zooplankton prey) effects of climate variability. The analyses were based on spatially-resolved time series, i. e. sea surface temperature (SST) from the Hadley Center and zooplankton records from the Continuous Plankton Recorder Survey. We showed that spring SST increase was the main driver for the most recent decrease in cod recruitment. The late 1990s were also characterized by relatively low total zooplankton biomass, particularly of energy-rich zooplankton such as the copepod Calanus finmarchicus, which have further contributed to the decline of North Sea cod recruitment. Long-term spatially-resolved observations were used to produce regional distribution models that could further be used to predict the abundance of North Sea cod recruits based on temperature and zooplankton food availability.
PY 2014
PD FEB
SO Plos One
SN 1932-6203
PU Public Library Science
VL 9
IS 2
UT 000331266000038
DI 10.1371/journal.pone.0088447
ID 29250
ER

EF