two interesting stories about oceans

On the heels of our trip to the Vancouver Aquarium, these two stories caught my eye:

Oceans' decline outpaces predictions, report says
Overfishing and habitat loss are biggest threats, followed by climate change

The health of the world's oceans is declining much faster than originally thought — under siege from pollution, overfishing and other man-made problems all at once — scientists say in a new report.

The mix of interacting ingredients is in place for a mass extinction in the world's oceans, said a report by a top panel of scientists that will be presented to the United Nations on Tuesday.

and

Predators migrate en masse to Pacific hotspots

Huge numbers of sharks, seals, turtles, whales and other ocean predators converge on two regions touching on B.C.'s coast at certain times of year, an animal tracking study shows.

After analyzing data collected over a decade from 4,306 tracking tags placed on 23 species in the North Pacific Ocean, scientists likened the mass migrations to the seasonal journey of vast herds of zebras and antelopes across the African savannah. They published their results Wednesday in Nature.