This new law is irrelevant to these points. Vertebrate animals were already considered sentient in UK law. So sharks, dolphins, turtles, fish etc were already covered.
The new recognition of cephalopods and decapods are is relevant to these points because they can be and are killed by these human-driven factors, and experience pain and distress.
The UK's recognition that fish can suffer doesn't seem to have forced the elimination of the UK's fishing industry. That industry intentionally catches and kills large numbers of fish but incidentally kills plenty of other kinds of animals, including cephalopods and decapods, through the extremely untargeted practices.
My understanding is that bottom-trawling is still a permitted in UK waters, and as of a couple years ago, was even still allowed in most marine protected areas.
The UK's recognition that fish can suffer doesn't seem to have forced the elimination of the UK's fishing industry. That industry intentionally catches and kills large numbers of fish but incidentally kills plenty of other kinds of animals, including cephalopods and decapods, through the extremely untargeted practices.
My understanding is that bottom-trawling is still a permitted in UK waters, and as of a couple years ago, was even still allowed in most marine protected areas.
https://www.theguardian.com/environment/2021/dec/17/uk-fishi...