Scientists are puzzled over what is causing hundreds of fish to wash up dead in South Florida, including an endangered species native to the region.

Kuskokwim River chum salmon numbers remain off-the-charts low. However, sockeyes are still coming in strong. Meanwhile, the summer rain has not been

Within the last few weeks, several lancetfish have appeared on the coast from Nehalem, in northern Oregon, to Bandon, which is about 100 miles from the California border, Oregon State Parks said on Facebook.

This summer, the number of humpback salmon in the River Teno, the border river between Norway and Finland, has increased enormously from last year. These salmon have been swimming near the shores, with masses of them dying in the river from exhaustion. Local people are extremely worried.

The fish measured 56 inches in circumference and weighed 800 lbs. Its age is not known, but it could be more than 100 years old, given its size. The monster sturgeon had never been tagged before, so this may have been the first time it was caught.

'Unprecedented numbers' of pink salmon were seen in 2017 and the fish have been spotted again this year.

B.C. drought exacerbating forestry damage to Bedwell River near Tofino as Ahousaht First Nation works to protect salmon, restore watershed.

Conservation and tribal groups in 2018 removed a downstream dam in the river northeast of Anchorage. But an upriver dam provides the cheapest energy in Southcentral Alaska. For people from the Native Village of Eklutna the river’s rebirth was an important moment. They want the 12-mile-long waterway permanently restored, along with the salmon their late elders once described as abundant.

Scientists participating in the international MOSAiC expedition with research icebreaker Polarstern have found fish including Atlantic cod and squid in deep water in the middle of the Arctic Ocean.

The southern resident killer whales who returned to their traditional summer feeding grounds in the Salish Sea on Tuesday and Wednesday after a long absence have apparently left again, and although most of the members of J-, K- and L-Pods appeared to be healthy, at least one may be close to starvation.

Researchers from the Coral Reef Ecology Lab at the Hawai'i Institute of Marine Biology documented the third global bleaching event as it occurred from 2014 to 2016 at the Hanauma Bay Nature Preserve (HBNP) on the island of O'ahu, Hawai'i. Their findings, published in the international journal PeerJ, show that temperature is by far the most influential factor in coral bleaching at this well-managed location where corals, fish, and all other organisms are protected.

Local fisherman Darren Porter saw this coming. "It's just common sense. I mean, you can’t take your fishbowl and put it on your stove.”

This season is shaping up to be the worst fall for salmon fishing on the Yukon River in recorded history. It follows the worst recorded summer salmon season ever.

On the Yukon River, subsistence salmon fishing is being closed to protect king salmon as they migrate upriver.

Since the initial June to July heatwave shocked the Pacific Northwest, Heim says the Tsolum River Restoration Society has observed significantly fewer fish in the river, especially in its lower portions. Many of the remaining coho, which survived the heat wave, are suffering from diseases and fin rot as a result of heat stress.

They are brightly coloured, beautiful and hungry — tropical fish and sea urchins are thriving in southern waters warmed by climate change. But now they are devastating kelp forests already knocked around by marine heatwaves.