Taiwanese longline fishing vessels Her Hae (left) and Jia Yu Fa (right) illegally transferring fish at sea. The transfer of fish at sea is one of the methods used around the world to cover up illegal, unreported and unregulated (IUU or pirate) fishing activities.
The Greenpeace ship MY Esperanza is monitoring the pockets of international waters that Pacific countries want closed from all fishing activities in order to protect the declining tuna stocks.