Ecosystem overviews

Bay of Biscay and the Iberian Coast key signals

Ecosystem and environmental trends
​​​​​​​This ecoregion is characterized by marked seasonal wind-driven upwellings (see above) that strongly affect the productivity of the system. ​
  • Th​​​​e seasonal pattern can be disrupted by (i) the Mediterranean water, which spills over into the Atlantic through the Strait of Gibraltar in the Gulf of Cadiz subregion, and by (ii) freshwater discharges from main rivers.
  • Large-scale meteorological pressure differences over the North Atlantic can cause speed and direction anomalies of the wind during winter that have been linked with other parameters, with the recruitment of commercially important species such as anchovy (Engraulis encrasicolus), sardine (Sardina pilchardus), and horse mackerel​ (Trachurus trachurus). 
  • The production of species such as sardine, southern hake (Merluccius merluccius), and Norway lobster (Nephrops norvegicus) varies with the North Atlantic Oscillation meteorological pressure differences, with a time lag of circa three years.
  • Fishing effort has been reduced in the Bay of Biscay and Iberian coast since the 2002 CFP reforms. Some stocks (i.e. anglerfish Lophius spp. and anchovy) are now fished at or below maximum sustainable yield (MSY) fishing mortality targets (FMSY) or with spawning-stock biomass (SSB) above reference points; some others are still above target (i.e. hake and megrim), but for most stocks there is insufficient information to define reference points.

Print this pagePrint it Request newsletterSend to Post to Facebook Post to Twitter Post to LinkedIn Share it
c FollowFollow Focus on ContentFocus on Content
HelpGive Feedback
SharePoint

Bay of Biscay and the Iberian Coast key signals

International Council for the Exploration of the Sea (ICES) · Conseil International pour l'Exploration de la Mer (CIEM)
ICES Secretariat · H. C. Andersens Boulevard 44-46, DK 1553 Copenhagen V, Denmark · Tel: +45 3338 6700 · Fax: +45 3393 4215 · info@ices.dk
Disclaimer · © ICES - All Rights Reserved
top