To mitigate that, you can put in a biodegradable panel. You can work in some twine that will actually degrade when it's been in the water for too long. If you do lose the pot, it actually opens up and the fish can swim out over time. That isn't to say that there's no impact of having garbage on the bottom of the ocean, because there certainly is, but it's one impact you can do something to mitigate.
On October 3rd, 2016. See this statement in context.