A mass die off of fish and invertebrates has been reported in the Sea of Okhotsk, west of Kamchatka. Dozens of surfers reported symptoms including including poor eyesight, fever, diarrhea, nausea, vomiting, skin rashes and head and throat aches.

Khalaktyrsky Beach near Petropavlovsk is littered with hundreds of dead sea animals, from deep-sea Giant Pacific octopuses, to seals, sea urchins, stars, crabs and fish. Surfers were the first to raise alarm after problems with eyesight, fevers and throat aches.

In the pictures, Måøya looks like a pristine natural gem on the coast of Trøndelag. But when scientists and adolescents started digging into the soil, they got shock.

A blob menacing Hawaii is now visible from space. A massive heatwave in the Pacific Ocean is killing off coral. Satellites are capturing the destruction so that scientists can learn how to rebuild the reefs.

Bull trout, which are technically char, mostly inhabit cold and pristine snow-melt-fed waters. Changes in water quality and temperatures challenge the future for this species in Alberta.

A large group of dead northern sea nettles (Chrysaora melanaster) found near the shore in Kasitsna Bay.

Unidentified squid caught by rod and reel off the beach.

In a good season, Skinney’s langoustine catch can reach 250-300 tons. This summer, it was only 38.

The threshold for closure is set at 80 parts per million, but concentration in those areas were found to be as high as 1,300 parts per million.The warning applies to oysters, clams, scallops, mussels and geoduck.

Sea Nettle (Chrysaora melanaster) jellyfish washed up on the beach.

Squid are becoming more common on the shoreline over the past few years.

The Whatcom County Health Department is warning residents that PSP a common biotoxin is now at potentially lethal levels in mussels harvested in Bellingham Bay.

The results of the Plate Watch program only indicated one invasive species in the area, Caprella mutica, otherwise known as the Japanese skeleton shrimp.

Ice in the north Bering Sea is diminishing, researchers aboard a Coast Guard ship report.

While their main target appears to be the region's soft-shell clam population, they're also munching through acres of eelgrass, a native flowering plant that shelters and nourishes life under the sea.

The Division of Marine Fisheries is analyzing the clams and expects to have preliminary results in the coming days that might point to a cause.

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.

In dives to the seafloor, scientists have noticed big differences in only a few years.