Turbo Evolution of Cod

http://www.newscientist.com/article/dn17198-turboevolution-shows-cod-speeding-to-extinction.html

Due to genetic selection by fisheries, cod have been evolving faster than expected. Fisheries catch cod near the surface making the cod which live in deeper waters have a much better chance of survival. PAN I is the gene which governs the depth in which the fish lives. As a result of this, cod with the A form of PAN I,living closer to the surface are caught, and this phenotype of PAN I seems to be dying out in the population.

Researchers have also found that cod are becoming mature more younger and this is seen as a result of selective pressure on the cod, by keeping more mature, ie bigger cod. In order to relieve such pressure on the cod, it is recommended to set aside arine reserves to increase the growth of the A form of PAN I, and place them back into the population again to slow down the evolution of cod.
by Chieh-yiu Cheng