FN Archimer Export Format
PT J
TI Extensive larval dispersal and restricted movement of juveniles on the nursery grounds of sole in the Southern North Sea
BT 
AF Delerue-Ricard, Sophie
   Darnaude, Audrey M.
   Raeymaekers, Joost A.M.
   Dundas, Siv Hjorth
   Skadal, Julie
   Volckaert, Filip A.M.
   Geffen, Audrey J.
AS 1:1,2;2:3;3:4;4:5;5:5;6:1;7:5,6;
FF 1:;2:;3:;4:;5:;6:;7:;
C1 Laboratory of Biodiversity and Evolutionary Genomics, KU Leuven, Charles Deberiotstraat 32, B-3000 Leuven, Belgium
   Institute for Agricultural and Fisheries Research, Ankerstraat 1, B-8400 Oostende, Belgium
   Center for Marine Biodiversity, Exploitation & Conservation, CNRS, University of Montpellier, Ifremer, IRD, F-34095 Montpellier, France
   Faculty of Biosciences and Aquaculture, Nord University, N-8049 Bodø, Norway
   Department of Biological Sciences, University of Bergen, PO Box 7803, N-5020 Bergen, Norway
   Demersal Fish Group, Institute of Marine Research, PO Box 1870, Nordnes, N-5817 Bergen, Norway
C2 UNIV LEUVEN, BELGIUM
   ILVO, BELGIUM
   CNRS, FRANCE
   UNIV NORD, NORWAY
   UNIV BERGEN, NORWAY
   IMR (BERGEN), NORWAY
UM MARBEC
IN WOS Cotutelle UMR
   copubli-europe
IF 1.725
TC 4
UR https://archimer.ifremer.fr/doc/00594/70601/68794.pdf
LA English
DT Article
DE ;Connectivity;Early-life history;North Sea;Otolith elemental composition;Trace elements;Solea solea
AB Connectivity between spawning and nursery grounds influences the colonization, replenishment and resilience of populations of marine organisms. Connectivity rate, measured as the exchange of individuals between spawning and nursery grounds, is therefore a crucial determinant of stock size. However, connectivity of early-life stages is hard to explore due to sampling limitations and insufficient knowledge on potential larval sources. Here we present new insights into pre- and post-settlement dispersal of the common sole (Solea solea L.) at a spatial scale of 5–500 km in the Southern North Sea. Patterns at a scale of <100 km were considered local, whereas patterns further than 100 km were considered regional. Multi-elemental signatures of the otolith edge of 213 juvenile sole were used to discriminate at 79% of overall accuracy three main nursery grounds in the Southern North Sea, namely UK coast, Belgian coast and Dutch Wadden Sea. Interregional differences in otolith composition (especially for Mg, Mn and Ba) suggest that sole migration following settlement is limited in the Southern North Sea. Elemental signatures of the same fish indicated mixing during larval dispersal. Each nursery ground recruited an important mix of juveniles from three of the four chemically distinct natal sources identified from the larval otolith signatures. However the percentage of correct regional re-assignment varied from 67 to 80% with a maximum in the Wadden Sea. The results contributed to the validation of biophysical models of larval drift. Our findings support decision making for both fisheries management and marine spatial planning at the national and European level. 
PY 2019
PD DEC
SO Journal Of Sea Research
SN 1385-1101
PU Elsevier BV
VL 155
UT 000514229300006
DI 10.1016/j.seares.2019.101822
ID 70601
ER

EF