PCBs were banned in 1977, but scientists predict they will not be cleared from the bodies of the southern resident whales until 2089. Two types of PBDE have been withdrawn from North American and European markets, but a third variety, deca-PBDE, is still used.  

USA
Shark tries to eat another 
A nine foot, 300-pound sand tiger shark Jessie, the largest shark in the Underwater Adventures Aquarium at the Mall of America, started eating a four and a half foot, 50-pound white tip reef shark. Fortunately staff were able to use a pair of feeding tongs to grab the tail of the reef shark, pull and eventually free the smaller shark and remove it from the tank. 

Leatherback turtle migrates 12,774 miles 
Scientists at the National Marine Fisheries Service (NMFS) used satellites to track one female leatherback, who was tagged on Jamursba-Medi beach in Papua, Indonesia, on her journey back to her foraging grounds off the coast of Oregon. She was tracked for 647-days covering a distance about equal to two round trips between New York and Los Angeles.  The turtle's trip set a new record for marine turtles, and is among the longest documented migrations for any marine vertebrate.  

This leatherback belonged to one of two distinct breeding populations in the Pacific, the western group. Other research has shown that females from this population migrate through areas in the Philippines, South China Sea, Japan, and the waters around many other countries, spurring conservationists to call for an international effort to protect the species, which is listed as Critically Endangered on the World Conservation Union's Red List.  

Australia
First whale shark since the 1960s. 
A whale shark seen off the Queensland coast is believed to be the first sighting of the giant creature in the area, 1000km from its usual feeding grounds, in more than 30 years. Divers saw the 5.5m juvenile while they were diving in a protected area off Stradbroke Island, 30km from Brisbane.  

Costa Rica
Illegal tuna boat busted in Cocos Island National Park 
Costa Rican fishermen have reported a purse seine vessel that was illegally fishing inside the marine area of Cocos Island National Park, Costa Rica, by reporting the incident to officers of the Ministry of Environment (MINAE) and the local coastguard.  The Panama Flagged ship "Tiuna", was caught 9.5 miles away of the island, which is supposed to enjoy a 12 mile no take zone, at the time of its capture. Officers reported the release of 12 tons of live tuna from the purse seine nets, and confiscated the 280 tons of tuna in its hold. 

UK
Fish scuppers bad memory theory   
Researchers at the National Marine Aquarium in Devon think they have disproved the age-old theory that fish have poor memories.  A giant (humphead) wrasse named Bentley has been obediently coming to food when a dinner gong is sounded, even remembering the sound after a four-month break.