Widespread mortality events that include more than one fish species are indicators that something is wrong in the environment.

Southwest Florida is reeling from a toxic algae bloom called red tide. Hundreds of tons of dead fish are washing up on beaches.

California State Parks scientists are running tests this week to determine what caused about 1,500 fish to die in Malibu Lagoon last week, but officials suspect higher-than-normal water temperatures may have played a role.

Plans are underway for raising the weir: a reflection of widespread concern, says Ken Traynor

We have visited this creek every summer for 10 years, since 2008, including every August, and we have never seen the water this low.

Sockeye salmon are migrating up B.C.'s Fraser River right now, but the water is so warm the fish may die before they have the chance to spawn.

Swimmers have reported feeling nausea, itchy skin and irritated eyes after vising the popular lake.

Nearly 4,000 dead fish were counted on Sanibel area beaches and parks.

DFO science recommends closing salmon rivers to retention angling for remainder of season.

Slow sockeye salmon (Oncorhynchus nerka) runs in the Aleutians potentially linked to warming ocean temperatures.

As the fish disappear, native peoples are looking for solutions lest they lose a way of life too.

Billie Shraffenberger is a longtime resident of Port Heiden. This is the first time she has caught a fish like the one she found in her subsistence salmon net this summer.

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

As of Friday afternoon, the sockeye escapement in the Chignik salmon fishery was less than half of what it usually is this time of the year.

After a very slow beginning to their season, fishermen in Ugashik Bay saw millions of sockeye salmon return in a little over a week in mid-July.

As fishing restrictions push salmon harvests on the Kuskokwim River later into the wet part of summer, families are seeking new ways to dry their fish and keep bugs away.

The Florida Keys is experiencing higher than usual fish kills this summer, but wildlife officials don't think it's part of a red tide or other type of algae bloom affecting other parts of South Florida.

Black Rockfish (Sebastes melonops) caught with X-Cell tumor.

Fishery scientists suspect the downturns are due to the warmest sea-surface temperatures ever recorded running from 2014-2016.

There’s only one historical record of a great white shark in the Bering Sea: fishermen caught one nearly 40 years ago. But scientists have reason to believe that in recent years there might be more of the predators around.