HJS,
This issue is a result of testing done on salmonoid species in Maine waters that contain both Bass and Trout/Salmon species. Results found undigested plastic baits in the stomaches of trout species that were swelling up and taking so much space as to prevent them from eating real food, and causing them to die of malnutrition for lack of a better word. They went as far as to deem one lake "no bass tournaments allowed", with talk of others to be named. They have since stopped it there, with the Dept of Fish and Wildlife urging fisherman to make the switch to bio plastics. How far this will go is anyones guess. A recent study has stated that as much as 25 million pounds of plastics are added to the bottom of the lakes in the U.S anually! That number is staggering.
I just returned from a week in Maine and have been in contact with the director of fisheries management quite a bit recently. He is receiving a lot of political pressure from "trouties" about this issue. I only know this stuff because he's been in contact about a product I produce that he thinks could be a step in the right direction. The fact of the matter is that even biodegradeable plastics take far too long to break down to prevent this from happening. This should be a wakeup call for any fisherman who throws used baits over the side of the boat to think twice about ever doing it again. We all need to do our part before we all suffer the consequences.