NOAA and NASA satellites measured an average sea-surface temperature of 68.93 degrees Fahrenheit in the Gulf of Maine on Aug. 8, only 0.05 degrees below the all-time record high of 68.98 set in 2012. It is the epicenter of the U.S. lobster fishing industry, an important feeding ground for rare North Atlantic right whales .

But the appearance of new chemicals is creating an uncertain future for polar bears, orcas and seabirds.

Hundreds of sea turtles have washed up dead along the southwest Florida coast as an ongoing red tide event persists in the waters. The Florida Fish and Wildlife Conservation Commission has logged 287 sea turtle deaths since the virulent algal bloom started in October, the Associated Press reported.

The report on Wood Buffalo National Park says industry, dams, climate change and natural cycles are sucking the lifeblood from the vast delta of northeastern Alberta's Peace and Athabasca rivers

Regional monitoring program notifies shellfish harvesters of an upward trend in concentrations of PSP.

Australia has seen an unprecedented number of widespread, catastrophic transformations in response to extreme weather events.

Rare observation of sea otter in Haro Strait, perhaps first since 2014.

Sea Star Wasting Disease has caused sea stars to die off since 2013. As of 2018, there are still no sea stars on Bishops Beach in Homer.

Shellfish in the Puget Sound tested positive for the prescription opioid oxycodone, and this was not the only drug found by the Washington Department of Fish and Wildlife.

Underwater camera captured ‘a wasteland, covered in brown sediment.’

Portions of Grays Harbor, Kitsap, Pierce and Thurston County currently have shellfish harvest restrictions due to pollution.

Lobster stocks around Iceland’s coast are so low a fishing ban is not out of the question.

For a few decades now, retired surgeon Jon Reiswig has lived with a perplexing oddity: the water in front of his North Douglas home constantly bubbles.

Previously, regulators monitored the presence of certain toxins and shut down fishing when they exceeded safe limits.

The herds are increasingly moving around in Bristol Bay, perhaps seeking new feeding grounds, a biologist said.

We discovered numerous large marine bivalve shells (and two chiton shells) that had been cracked recently by sea otters. Ocean View Beach is around the southern extent of Vancouver Island and back again north in the Strait of Georgia. The present observation is evidence of sea otters traveling into the Strait of Georgia.

Walrus in Bristol Bay and Port Heiden are not uncommon in summer. The fact they are present in April is unusual and residents believe factors such as the lack of sea ice, lack of food and warming ocean temperatures may be the reason.

Opalescents, also known as market squid, are showing up in waters previously considered too cold for them, and fishermen are paying attention.

In just a few short years, the Northern California waters stretching from Sonoma to Southern Humboldt have undergone a dramatic transformation, with stretches stripped bare of their once varied marine life in a phenomenon known as "urchin barren."