Warm-water commercial species such as sea bass, red mullet and tuna are becoming more commonplace in our seas.

Cold-water species, such as cod, have declined, with a possible link suggested between warmer sea temperatures and reduced populations of fish at the southern limit of their distribution range. (Fishing remains the main pressure on commercial fish stocks.)

Continued decline in abundance and northward retreat in distribution of commercial cold-water species.

Changes to ocean circulation might affect movement of young fish from spawning grounds to nursery areas.

New species might become available for commercial exploitation.

Climate change impacts on primary productivity will affect fisheries, but they are not yet well understood.

MEDIUM