OK so I'm a day or two off the pace with this story (courtesy of a long weekend - well even we need a day or two off once in a while), and didn't find out about Monday's tuna direct action in Paris until I showed up at the office again today. So what did I miss? Well, our French colleagues took the opportunity to protest against France's leading role in decimating Mediterranean bluefin tuna stocks by dumping five tonnes of tuna fish heads outside the door of the French Fisheries Ministry.

Timed to coincide with coincide with the opening of the annual meeting of the International Commission for the Conservation of Atlantic Tunas (ICCAT), in Marrakech, the action targetted France (as opposed to Italy or Spain, the two other worst offenders) in this instance because French Premier Nicholas Sarkozy currently holds the EU presidency. He has been using it to shape the EU position in favour of the short-term interests of his fishing industry above the need to save the Mediterranean bluefin tuna stock from collapse.

Greenpeace Canada exposed the country's largest grocery store chain's claims to be a 'green' grocer as false this week, after an investigation into how they source their seafood. Loblaws, whose stores account for nearly a third of all groceries sold in Canada, were found to be selling 14 of the 15 species on Greenpeace's 'Redlist' - made up of those species that are most destructively fished or farmed.

To get 'redlisted' a species must be in serious trouble, usually defined as facing a 90% reduction in numbers. Currently top of the Canadian list are Atlantic bluefin tuna, Atlantic cod, sharks, skate, shrimp and orange roughy - all of which are sold by Loblaws.

Catch them while you can - endangered bluefin tuna © Greenpeace/Gavin Newman

When we said a few weeks ago that customers of the Nobu chain of high-class sushi restaurants wouldn't be aware that the bluefin tuna being served there was endangered, we never thought they would respond to our complaint in quite such a literal manner. But now diners can clearly see which dishes include tuna from endangered stocks because it's written on the menu. As reported in the Sunday Telegraph and as a result of Greenpeace's investigative work and subsequent discussions with Nobu, customers at the up-market eatery will now be able to clearly identify the endangered species on the menu.