I was open to expanding the study to include the west coast. I wasn't aware of the situation regarding sea lions. That's not a west coast topic I'm knowledgeable about. However, I see that the harbour seal is the dominant species and that there are sometimes Steller's sea lions and sea otters.
I therefore have no objection to simply writing, “a study on the development of the sea industry and other species also found in British Columbia, namely Steller's sea lions and sea otters”, so that it covers species similar to the harbour seal that may be hunted on the west coast.