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."

Douglas Indian Association catalogs marine debris at the bottom of Gastineau Channel | Though it sounds like the subtitle to a Pirates of the Caribbean movie, ghost fishing is a real phenomenon. It's going on right now in Gastineau Channel.

Sea otter population growth not seen in recent history and shellfish harvest have been dropping.

Sea star wasting disease, a type of densovirus, reduced the count of sea stars in Kachemak Bay from 180 last spring to a measly five this year.

No one really knows why algae put so much effort into making poisons. Alexandrium makes saxitoxin, and causes PSP. Another algae called Pseudo-nitzschia produces domoic acid, the source of amnesiac shellfish poisoning.

A limpet not seen in the area before.

The novelty of seeing a jumbo squid in Unalaska is not wearing off: a second one washed ashore Monday night.

The prevalence of "weak meats" syndrome in 2014, 2015 meant that somewhere on the order of half of all scallops shucked couldn’t be marketed. That was much higher than the fleet had ever seen before.

Coral degradation, fish species decline and an increase in jellyfish population.