FN Archimer Export Format
PT J
TI Migration and Fisheries of North East Atlantic Mackerel (Scomber scombrus) in Autumn and Winter
BT 
AF JANSEN, Teunis
   CAMPBELL, Andrew
   KELLY, Ciaran
   HATUN, Hjalmar
   PAYNE, Mark R.
AS 1:1;2:2;3:2;4:;5:1,3;
FF 1:;2:;3:;4:;5:;
C1 Tech Univ Denmark, DTU AQUA Natl Inst Aquat Resources, Charlottenlund, Denmark.
   Inst Marine, Fisheries Ecosyst Advisory Serv, Galway, Ireland.
   ETHZ Swiss Fed Inst Technol, Zurich, Switzerland.
C2 UNIV TECH DENMARK (DTU AQUA), DENMARK
   MARINE INST, IRELAND
   ETHZ SWISS FED INST TECHNOL, SWITZERLAND
IN DOAJ
IF 3.73
TC 31
UR https://archimer.ifremer.fr/doc/00125/23614/21460.pdf
LA English
DT Article
CR IBTS INTERNATIONAL BOTTOM TRAWL SURVEY (IBTS),
AB It has been suggested that observed spatial variation in mackerel fisheries, extending over several hundreds of kilometers, is reflective of climate-driven changes in mackerel migration patterns. Previous studies have been unable to clearly demonstrate this link. In this paper we demonstrate correlation between temperature and mackerel migration/distribution as proxied by mackerel catch data from both scientific bottom trawl surveys and commercial fisheries. We show that mackerel aggregate and migrate distances of up to 500 km along the continental shelf edge from mid-November to early March. The path of this migration coincides with the location of the relatively warm shelf edge current and, as a consequence of this affinity, mackerel are guided towards the main spawning area in the south. Using a simulated time series of temperature of the shelf edge current we show that variations in the timing of the migration are significantly correlated to temperature fluctuations within the current. The proposed proxies for mackerel distribution were found to be significantly correlated. However, the correlations were weak and only significant during periods without substantial legislative or technical developments. Substantial caution should therefore be exercised when using such data as proxies for mackerel distribution. Our results include a new temperature record for the shelf edge current obtained by embedding the available hydrographic observations within a statistical model needed to understand the migration through large parts of the life of adult mackerel and for the management of this major international fishery.
PY 2012
PD DEC
SO Plos One
SN 1932-6203
PU Public Library Science
VL 7
IS 12
UT 000312201900100
DI 10.1371/journal.pone.0051541
ID 23614
ER

EF