I don't fish in saltwater much or better said rarely.
My understanding the case law is mostly the Ahoushat case which applies to the north western waters of Vancouver Island
Here are some summaries I collected on that case:
" ... a right to “a small-scale, artisanal, local, multi-species fishery, to be conducted in a nine-[nautical] mile strip from shore, using small, low-cost boats with limited technology and restricted catching power and aimed at wide community participation.” She also found that:
the right is multi-species; therefore it is the totality of the fishery that is relevant, not one particular allocation of a species;
the right is not unrestricted;
the right is not exclusive;
the right is not to an industrial fishery;
the right is not to accumulate wealth; and
the right does not provide a guaranteed level of income, prosperity, or economic viability"
these rights are part of their aboriginal rights and not an "economic opportunity" right
it was also found that reserving Chinook and Coho for the recreational fishery was not consistent with the existence of aboriginal right to fish.
a case summary is here:
https://www.mandellpinder.com/ahousaht-indian-band-and-nation-v-canada-attorney-general-2018-bcsc-633-case-summary/