Nearly 30 transient orcas were spotted in the Salish Sea around British Columbia and Washington state over the Labor Day weekend, a positive sign for the species, according to local whale watchers and researchers.

Orthione griffenis, or O. griffenis, eventually kills its host shrimp, and soon the remaining shrimp can’t find each other to reproduce, rendering a blue mud shrimp population extinct.

Swarms of giant jellyfish are floating along the coastline of the Sea of Japan, and the damage they may cause to fisheries is feared to be the worst in more than a decade.

It is apparent that this area of coastline has experienced a sharp decline in its prawn populations. This may be due to increased fishing pressure from commercial prawn fishermen.

The sunken scallop boat, Saint Patrick, remains a pollution hazard off the coast of Kodiak, Alaska, decades after sinking in 1989, bringing up memories of a devastating fishing disaster in 1981 that claimed nine lives.

A self-cloning and invincible enemy invades coastal areas. The carpet sea squirt (Didemnum vexillum) or “marine vomit” have been observed nearby Stavanger and Bergen. Large yellow flakes has spread on the seabed and kills everything beneath. It may grow on boats and can spread along the coast.

A year ago Bergensarane was bathed in autumn sun. This autumn it was bathed in rain. In fact, it has come in eight times more rainfall in November this year than last year.

A belt of warm air is currently stretching from northern Greenland across the North Pole to the Laptev and East Siberian Seas north of the Russian mainland. Northeast of Svalbard from Franz Josef Land to Severnaya Zemlya see similar heat. On a recent November weekend the average temperature was 6.7°C above normal across the Arctic.

A massive ocean wave that was tracked off the west coast of Vancouver Island in 2020 is now considered the most extreme rogue wave ever recorded, according to scientists at the University of Victoria.

It was first reported, here, two months ago, that a pod of Killer Whales off the coasts of Spain and New Spain (i.e. Portugal) was exhibiting never-before-seen behavior in carrying out coordinated attacks on boats.

For the first time, cod and squid have been found deep in the water at the center of the ocean. The research by Pauline Snoeijs Leijonmalm, a professor at Stockholm University, was part of the Mosaic expedition, an icebreaker that spent a year trapped in the Arctic's ice.

“My boys told me my cabin went into the river,” said Rita Hulkill, who is 82. “My cabin had been there since the 70s. The water has never been that high ever.”

Starting on the night of Wednesday, November 4, and continuing through Friday, a major storm ripped through the Norton Sound region, causing widespread closures and some damaging flooding.

The species Japanese sea purse is found by divers in Stavanger harbour. "This is a plague we have been waiting for," says researcher Vivian Husa of the Institute of Marine Research. Now she particularly warns mussel breeders about the danger the species represents.

Late last week a strong Bering Sea storm hit the region, bringing winds up to 50mph, blowing snow, and high-water. Some communities saw significant erosion while others were mostly unscathed.

Pacific sand lance can be found along the Western and Southern coasts of Alaska, although their distribution is based on habitat availability. Computer models suggest that there is a low probability this habitat exists near Kivalina.

Coonstripe shrimp (Pandalus hypsinotis) can be found at a depth of 30-300 feet in Norton Sound. During a strong storm, some washed up on a beach north of their known range.

The Outer Hebrides are already suffering from the impacts of climate change including higher tides, longer storms and erosion.

On 2 November 2020, the Japanese invertebarate Didemnum vexillum was detected by diver and underwater photographer Erling Svensen at Engøyholmen in Stavanger harbor. The aim of a new monitoring project is to register occurrences of the presumed recently arrived D. vexillum in the delimited areas, and then to map how it spreads locally, and also what impact it has on the local fauna.

For the first time since records began, the Laptev Sea has not yet formed sea ice by the end of October. Scientists attribute the lack of ice to early summer warming and an extreme heatwave in Siberia, as well as warm Atlantic currents flowing into the Arctic.