A salmon farm manager in Finnmark urges fishermen to report pearl necklace siphonophore (jellyfish) sightings after blooms caused skin and eye injuries and breathing problems in farmed salmon near Øksfjord/Hammerfest.

The invasive carpet sea squirt (filtsjöpung), known as “sea vomit,” is rapidly spreading across the seafloor in Kosterhavet National Park, smothering organisms beneath it. Authorities say budget cuts have hampered monitoring and control, but they are now examining ways to slow the outbreak.

Border and fisheries officers detained Khatanga residents who illegally caught 2,400 muksun and 35 broad whitefish, causing an estimated 168 million rubles in damage. Authorities are considering a criminal case under Russia’s Article 256 on illegal extraction of aquatic biological resources.

A rare Haliphron atlanticus (seven-arm octopus) was caught by shrimp fishers in western Skagerrak at about 200 m depth and sent to the Tjärnö Marine Laboratory for study.

Exceptionally large cod catches off Loppa and Hasvik, Finnmark, are allowing many small and mid-size boats to fill their quotas within days, and a record year in turnover is expected. Local leaders say boats from across Norway have flocked to the area, with landings markedly higher than last year.

Hundreds of Atlantic salmon and sea trout have died in the Gaula River in Midtre Gauldal, Trøndelag. Researchers suspect a severe outbreak of egg-spore water mold (Saprolegnia) and are investigating the scale and causes.

The vessel Beitir NK landed 700 tons of herring in Neskaupstaður, as skippers report many whales—especially orcas—converging on herring grounds and following the net to the ship. Recent catches suggest the herring has shifted north toward Bakkaflói.

A fisherman from Qasigiannguit, Greenland, unexpectedly found a rare porbeagle shark entangled in his salmon net near the abandoned settlement Akulliit. The shark measured about 2.35 meters and was estimated over 200 kg—an unusual catch in Greenlandic waters.

Low river levels on Vancouver Island are delaying pink salmon migration in the Tsolum River and Millard Creek, leading to stranded fish and an estimated 4,000 mortalities. Salmon groups say sustained fall rains are needed; limited Wolf Lake releases are temporarily boosting Tsolum flows.

Waters off Sitka were warm enough to lure fish from the south, and local anglers took advantage of conditions to harvest species that make rare appearances in Alaska.

An angler caught a farmed Atlantic salmon in the Blanda River, North Iceland, renewing concerns about escapes and hybridization with wild stocks. Local monitors report over 7% hybrids among juveniles in a key fishing zone following earlier sea-pen damage.

A fishing vessel that ran aground near Afognak Island on Monday has leaked an estimated 3,000 to 3,500 gallons into Izhut Bay, according to state officials.

An Icelandic deckhand was surprised to find a cod whose stomach was completely filled with small stones. The rare find occurred aboard the trawler Skinney SF 20 while fishing off East Iceland.

A provincewide drought in Nova Scotia has dried up brooks and streams, stranding trout and white suckers and stressing native fish, while a woods ban limits access to assess impacts. Warmer water favors invasive chain pickerel, and restoration work is paused; Atlantic salmon migration is also being blocked by low flows.

Alaska health officials issued an alert after wild shellfish from Kachemak Bay’s inner bay tested above regulatory limits for paralytic shellfish poisoning toxins. Residents are warned not to harvest or eat untested wild shellfish; monitoring and test results are being posted by the Alaska Harmful Algal Bloom Network.

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.

A record 3,000–4,000 European eels have been counted this year in the eel ladder at Älvkarleby on the lower Dalälven— the highest level in 50 years. Researchers at SLU call the surge remarkable but say it’s too early to know if the rebound will last.

The Chinook salmon run in the Napanee River is being impacted by unusually low water levels.

Fisheries and Oceans Canada authorized a rare recreational sockeye opening in the non-tidal Fraser River from Mission to Hope (Aug. 22–Sept. 1, 2025) after unexpectedly large sockeye returns; retention is two sockeye per day and four pinks per day, with restrictions to avoid impacts on non-target stocks.

Unusually low waters in the Mackenzie River during late summer 2025, disrupting traditional and commercial river transport and indicating a shift from riverbed to riparian areas.