2025 Declared the 'Year of the Octopus' Along England's South Coast.

Unprecedented encounters of a remarkably clever cephalopod during the summer season have resulted in the naming of 2025 as “the year of the octopus” in an annual review of UK coastal waters.

A Perfect Storm Driving a Surge

A gentle winter coupled with a very warm springtime triggered a massive influx of *Octopus vulgaris* to take up residence along the southern coastline of England, from Penzance in Cornwall to south Devon.

“The volume of octopuses caught was roughly over a dozen times what we would normally expect in this region,” stated a marine conservation officer. “When we added up the numbers, approximately 233,000 octopuses were found in these waters this year – which is a significant rise from what is typical.”

*Octopus vulgaris* is found in British seas but usually so scarce it is seldom observed. An explosive growth is the result of a combination of a mild winter and favorable spring temperatures. This perfect scenario meant a higher survival rate for young, maybe aided by abundant stocks of spider crabs noted in recent years.

A Rare Phenomenon

The last time, an octopus bloom comparable was recorded in 1950, with archival data indicating the last bloom prior to that occurred in 1900.

The remarkable abundance of octopuses meant they could be frequently seen in coastal areas for the first time in recent history. Video footage show octopuses gathering in groups – they are usually solitary – and moving along the bottom on the tips of their limbs. A curious octopus was even recorded reaching for an underwater camera.

“The first time I dived off the Lizard peninsula this year I saw five of these creatures,” they noted. “And these are big. There are two types in these waters. The curled octopus is smaller, about the size of a football, but these common octopuses can be reaching impressive sizes.”

Future Prospects and Other Surprises

A second gentle winter this coming winter could lead to a repeat event the following year, because based on records, in similar situations, events have occurred consecutively for two years in a row.

“But, it's improbable, from previous blooms, that it will go on for a long time,” they stated. “Marine life is unpredictable these days so it’s quite an unpredictable situation.”

The report also highlighted other “surprises, successes and joyful moments” along the coast, including:

• Highest-ever counts of grey seals recorded in one northern region.
• Peak numbers of the iconic seabirds on a Welsh island.
• A first-ever sighting of the *Capellinia fustifera* nudibranch in a northern county, typically a southwestern species.
• A type of blenny found off the coast of Sussex for the inaugural time.

Environmental Concerns

Not everything was good news, however. “The period was framed by environmental disasters,” stated an expert. “A significant shipping incident in the North Sea and an accidental discharge of tonnes of plastic biobeads off the Sussex coast were serious issues. Staff and volunteers are making huge efforts to defend and heal our shorelines.”