I do. In fact, I litigated a case on this a couple of years ago and spent the better part of a morning taking the trial judge through both Marshall I and II, stopping at every point where the court said that it is a treaty right to fish and hunt for a moderate livelihood.
In Marshall II it's actually really helpful if you read it all the way through. There is a reference to species specificity, but it is in relation to the justification of the right. The process that I had explained earlier—the process of justification—may change depending on whether you're talking about lobster or eel or shrimp or what have you, but the main Marshall I decision itself is about a right to fish for a moderate livelihood, as well as to hunt.
There is a 2005 Marshall case where the court said that it doesn't include the right to harvest logs, for example, so it's very clear, when you look at all three, that species specificity is in relation to justification and not to the right itself.
However, there is huge miscommunication and misunderstanding around that too, and I think that is part of my recommendation for why there needs to be greater education around what the decision means, what it says and what it means for governments to respect and honour treaty rights, as well as respect by citizens more generally.