Although we rarely eat fish anymore since Indigo's severe allergic reaction, for me, nothing nourishes a protein craving more than seafood.
(H)appy Fish is the perfect iPhone App for Australians who want to support a more sustainable fish industry. This free App contains a detailed Sustainable Seafood Guide from the Australian Marine Conservation Society (AMCS). The App classifies your choice of seafood into three categories: better, think and no. It also includes a Canned Tuna Guide- which sheds light on which canned tuna to buy and which to avoid giving details on the species, catching method and amount of by-catch the company's product uses and produces.
I am not affiliated with the makers of the App or receiving anything in return for promoting it, but I have found it fascinating and highly useful when I am in the market for seafood.
If you have an iPhone the (H)apply Fish is totally free so give it a go. It's a real eye-opener.