I think this is a reasonable position to take (although I think some possible lives must be bad enough to be worth preventing or ending early), but I don’t think it makes reducing paste shrimp capture look like a very promising intervention either. You’d decrease mortality rates and increase average life expectancies for the paste shrimp and do the opposite for copepods. That could still look morally ambiguous, depending on your beliefs about their moral weights and sentience and uncertainty about them, and so how you weigh paste shrimp vs copepod interests.
AFAIK, there’s no plausible deontological rule you violate by not specifically working to reduce paste shrimp fishing by other people, so it’s permissible to focus on something else.
And if you’re especially concerned with reducing total exploitation of animals by humans or moral/rational agents specifically for its own sake, this could increase catch and so backfire. (It may look good for reducing the share of animals exploited or maximizing the number of non-exploited animals.)
(Again, this applies pretty generally to fishing, not just for paste shrimp.)
I think this is a reasonable position to take (although I think some possible lives must be bad enough to be worth preventing or ending early), but I don’t think it makes reducing paste shrimp capture look like a very promising intervention either. You’d decrease mortality rates and increase average life expectancies for the paste shrimp and do the opposite for copepods. That could still look morally ambiguous, depending on your beliefs about their moral weights and sentience and uncertainty about them, and so how you weigh paste shrimp vs copepod interests.
AFAIK, there’s no plausible deontological rule you violate by not specifically working to reduce paste shrimp fishing by other people, so it’s permissible to focus on something else.
And if you’re especially concerned with reducing total exploitation of animals by humans or moral/rational agents specifically for its own sake, this could increase catch and so backfire. (It may look good for reducing the share of animals exploited or maximizing the number of non-exploited animals.)
(Again, this applies pretty generally to fishing, not just for paste shrimp.)