Fishing for Complaints?

Its seems that what I predicted after the 'horse meat in burgers' fuss has come to be. A recent investigation has revealed that a  proportion of fish sold in supermarkets and restaurants are not the species described 'on the tin' (http://www.guardian.co.uk/lifeandstyle/2013/apr/02/fish-chips-cod-food-standards?INTCMP=SRCH). What is described as 'cod' (the only white fish known by many of the UK population?) is actually Pollack or Whiting. Of course, some of these species are actually more sustainable than the species they are replacing but one can argue that people ought to be told what they are actually buying.