The book is written by a journalist who writes predominantly for the New York Times and focuses on fish, aquaculture and the future of the oceans. The book seems to be a fairly balanced report that concentrates on the state and future of the four fish: salmon, sea bass, cod and tuna. Why these ones, and why four? Well, there are apparently four mammals that humanity chose to domesticate: cows, sheep, goats and pigs, and four birds: chickens, geese, ducks and turkeys, so following that pattern and Michael Pollan’s idea of ‘a natural history of four meals’, Greenberg is looking at four fish we eat most often. He looks at the state of their stocks around the world and their domestication and preservation efforts. His account seems to be well balanced- he is neither an activist preaching doom and gloom, nor is he a fishing industry enthusiast. The fact that he is a passionate, yet compassionate, fisherman himself, adds a nice personal touch to his narration. Which doesn't mean that he is optimistic about what he sees and investigates. He is rather pessimistic about the wild fish chances of survival unless we decide to see and treat them as wildlife and not as food. He advocates getting away from eating wild endangered species, developing sustainable fish farming practices and establishing global no-catch zones. Global being the operative word here.
It’s a very nicely written book, with quite a bit of history. Just a bit of criticism: Greenberg complains that people don’t even know what the fish they eat look like, and yes, this is mostly true in my case. I may know salmon, herring, carp, but do I know what pollock or tuna look like? Or, how the yellow fin is different from the blue fin tuna? No idea, so he is evidently right, yet he doesn’t include any pictures in his book.
I would also like to see fish farms work, yet so far have big reservations. I see multiple problems to what the things are like with the farmed fish right now. For one, salmon farms pollute the waters and spread sea lice. They give the sea lice to the wild fish, causing them to weaken and die. Farmed salmon suffer from a host of diseases- I am even wondering what's the condition of the fish we eat. Farmed salmon also escape and may breed with the wild salmon, and who knows to what detrimental effect. Besides, one of the ways to get rid of the high levels of PCB and mercury is to feed salmon a vegetarian feed. Some fish farmers have started doing that. The feed consists mainly of corn and flax seeds from what I understood. I am wondering how it's going to change the taste of the fish flesh, and the nutrients it offers, not to mention how it's going to affect people like me, those who have lots of allergies.
Then we have all the panga fish (catfish- a kind of sea bass?) bred in Vietnam. Yes, it's very cheap and tasty, but who knows what chemicals lurk in its flesh. Regulators say illegal antibiotics have been found in many of them. Not that pork or chicken are any better, though.
I was at Costco today, and I must say I was thoroughly disgusted to sea yellow fin tuna steaks to buy. I am pretty sure Costco wasn't doing anything illegal, but they shouldn't be promoting endangered species consumption in any way in my opinion.