Up to 10 basking sharks were filmed close to shore off Nairn in the Moray Firth, offering rare, close-up views to tour passengers and beachgoers. The late-summer sightings featured large sharks circling near idle boats in calm water.

Icelandic authorities report that 7 of 22 salmon submitted for testing were confirmed as farmed escapees, caught in several North/West Iceland rivers. Tracing suggests six fish share a common origin in Dýrafjörður; investigations continue and anglers are asked to turn in suspect fish whole for analysis.

Police and fire crews responded Thursday night to a large jet fuel spill at Polar Oil near Nuuk’s harbor. About 7,069 liters leaked but were contained in a spill basin and mostly pumped back; police are investigating the cause.

A huge iceberg—about 300 m long, 300 m wide and 75 m high—was spotted in a key shipping route north of Iceland, prompting a warning to mariners. The Icelandic Coast Guard located it roughly 42 nautical miles north of Hornbjarg during an aerial patrol.

A passenger, Emma, says a routine fast-ferry trip near Hammerfest turned dramatic when the vessel struck a whale; the whale was visibly injured with blood in the water.

Barnacle larvae are proliferating in the Baltic Sea, prompting the Swedish Boat Union to warn owners to wash hulls in time to prevent hard barnacle mats and reduce environmental and fuel impacts.

Sea surface temperatures around the UK have been the warmest start to the year on record, driving unusual species like bluefin tuna, octopus and mauve stinger jellyfish into British and Irish waters. Irish waters have cooled since a May marine heatwave but remain above average in the east and south.

A polar bear was spotted traveling on an ice floe near the Hornstrandir peninsula in the Westfjords of Iceland.

On July 26, storm‐force southeast winds gusting up to 19 m/s and light rain forced a temporary shutdown of seaport operations in Anadyr, delaying cargo unloading and canceling passenger ferry crossings.

A young male humpback whale calf was discovered dead drifting near Sandy Beach in Gastineau Channel and towed by U.S. Coast Guard and NOAA officials to undergo a necropsy.

Water levels in the Caspian Sea have fallen to more than 29 meters below the Baltic Sea reference point, a historic low, exposing large areas of seabed in the northern region and threatening its ecosystems.

A venomous lion’s mane jellyfish has been sighted on several west Swedish beaches between Strömstad and Malmö, delivering powerful stings that can cause breathing problems.

Sustained high temperatures have led to algal blooms at several sites in the Haparanda Archipelago, and local authorities are advising people to avoid bathing.

A rare basking shark was spotted during an Elding whale watching tour in Faxaflói Bay, marking its first appearance in the bay in five years according to the company.

A tsunami alert issued after a 7.4-magnitude earthquake off Kamchatka was lifted when no hazardous waves arrived, though aftershocks remain possible.

A minke whale stranded on MacDonald Spit near Seldovia for six hours on July 17 but refloated with the rising tide and swam back into Kachemak Bay; the Seldovia Village Tribe suspects a toxic algal bloom disoriented the whale.

A damaged oil pipeline in Nuussuaq near Upernavik spilled around 8,000 liters of diesel into the sea, forcing halibut processing and fish production to pause for two days and severely disrupting local fisheries.

A leatherback sea turtle was filmed near Haida Gwaii on July 14, marking the first verified sighting in B.C. waters in 2025.

Avannaata emergency services warn residents in Innaarsuit to avoid gathering near the harbour shop due to risk of iceberg calving triggering large waves.

Sea surface temperatures off Norway have reached 22–23 °C, at least five degrees above normal, marking a marine heatwave that risks stressing marine life and intensifying extreme weather.