The survey started in 1971 as a review of commercially important fish like cod and halibut, but has grown into an annual scientific assessment of all sea life hauled up from the deep.

The Gulf of St. Lawrence has warmed and lost oxygen more rapidly than almost anywhere else in the Earth's oceanic waters due in part to climate change, raising the possibility that it could soon be unable to fully support marine life, according to a new study.

Waters off the coast of Maine are warming faster than 99 percent of the world's oceans. That's forcing whales northward in pursuit of prey, threatening some of their already dwindling populations.