Fishermen often throw half of their catch back into the sea -- because the fish are small and therefore not as profitable as their larger counterparts and because the fishermen want to keep within their EU fishing quotes. Slowly,it is now becoming accepted wisdom that this is also one reason for the dwindling fish stocks. At fish auctions in the Netherlands a seal of approval has been introduced to indicate the use of sustainable fishing practices. We visit a Dutch fisherman who is currently in the process of modifying his fishing equipment so that less small fry gets caught up in his nets.