Oh man, this book is densely packed with juicy history that had previously been completely unknown to me.
First off, a pre-existing knowledge of the geography and natural environment of the Salish Sea/Puget Sound is extremely useful when reading this. I would have been pretty lost without it and, frankly, if I hadn't grown up in the area I might not have found this book as interesting as I did.
As it is, though, both the crucial importance of salmon and the arbitrary and permeable nature of the sea border between the US and Canada were impressed upon me from early on in life and as such reading about the tenuous and largely failed efforts to institute and subsequently police that border and manage salmon fisheries over the last 200 some years was a delightful experience. I often found myself thinking, 'oh that makes sense' when learning new facets of that history, a wonderful indication that a historical work has succeeded in helping me understand why things are the way they are now.
This paints a vibrant picture of life in the area oriented to salmon and the management thereof, from pre-contact indigenous practices and inter-group agreements to the massive influx of immigrants (both Asian and northern European) to the area and the complex impacts of (sometimes surprising in comparison to today) alliances and arguments along racial lines. I loved in particular the section on fish piracy and the discussion of how the philosophy of common resources and socialist movements fueled social acceptance of the practice. Technology, environmental conservation, food security, international relations, race and gender analyses, it's all here.
This is an academic work, and if you're looking for an academic resource I can't recommend it enough. I read it as a casual reader and still got quite a lot out of it but it was a little heavy on detail and repetitive in ways that occasionally tired me: these would have been features, not flaws, if I were using the book in an academic context, but as it was this pushes me to admit that while I heartily recommend this to those interested in the history of the pacific northwest or fisheries, I can't really recommend it full-stop as a casual read to someone without those interests. This is why I'm giving it 4 stars instead of 5: the author does a completely wonderful job at reaching a specific audience and her work is well-constructed to do so, but she doesn't quite manage that rare feat of spectacular writing that makes me read an academic work and think, 'dang, I'd recommend this to anyone'.