A harmful plankton bloom and poor water conditions caused large mortalities at three Cermaq salmon farms in northern Clayoquot Sound near Tofino, with up to 185,000 fish lost at one site. DFO says disease was ruled out; critics warn the die-off could affect wild salmon and the marine environment.

Large menger glass jellyfish in the Oslo fjord cause problems for both beachgoers and shrimp fishermen. The whole trawl was full before it reached the bottom where the shrimp are.

The number of moon jellyfish in Alaska waters has increased. Warm ocean temperatures and plentiful food in the form of zooplankton have contributed to the increased sightings

Purse seiner crew scrambles to shovel the huge bycatch of Northern sea nettle jelly fish (Chrysaora melanaster) overboard.