There is no way to eat fish sustainably; eating fish kills fish, sea lion pups and many more animals

Another of thousands of reasons to stop eating fish (and meat, dairy, and eggs as well because about half of all fish is used as fish meal in livestock feed) - these starving sea lion pups - http://animalconnectionac.wordpress.com/2013/04/09/unusual-mortality-event-is-declared-for-the-california-sea-lion/