Are these being overfished?

This cool ad by Klas Ernflo was commissioned by the Government of Catalunya to raise environmental awareness and help keep the Mediterranean sea clean.  The lists off the most dangerous species (of pollution), their origin and their destructive behavior.  Each offending piece of litter is shaped like a sea creature.  It features such monsters as the well known plastic ring which traps sea creatures, and the devious plastic bag which fools its victims into thinking it's a scrumptious jelly fish and eating it where it poisons it's prey from the inside.

"All around the world 8 million tons of waste reach the sea every day.  All this refuse is generated by human activity.  This non-recyclable rubbish is thrown into the toilet, onto the streets, into gullies, onto the sand and into the sea, turning it into a tangible destroyer of marine life.  But you can stop this from happening."

Click to enlarge

Source