2025 Declared 'The Octopus Year' Along England's Southern Shores.
Unprecedented sightings of a supremely intelligent sea creature over the summer months have prompted the designation of 2025 as the octopus's year in a yearly report of the nation's marine environment.
A Perfect Storm Driving a Surge
A gentle winter coupled with an exceptionally warm spring catalyzed unprecedented numbers of *Octopus vulgaris* to establish themselves along England’s south coast, spanning the Cornish and Devonian coasts.
“The volume of octopuses caught was of the order of about over a dozen times what we would usually anticipate in Cornish waters,” stated a marine life specialist. “Based on the totals, around 233 thousand octopuses were caught in these waters this year – that’s a huge increase from what is typical.”
*Octopus vulgaris* is found in these waters but ordinarily in such small numbers it is rarely seen. A sudden increase is the result of the dual effect of gentle winter conditions and favorable spring temperatures. These ideal conditions meant more larvae, maybe aided by significant populations of spider crabs noted in recent years.
An Uncommon Occurrence
Previously, an octopus bloom of this size was recorded in 1950, with past documentation indicating the one before that was in the turn of the 20th century.
The remarkable abundance of octopuses meant they could be easily spotted in coastal areas for the first time in recent history. Underwater recordings show octopuses gathering in groups – unlike their typical solitary behavior – and ambulating along the ocean floor on their arm ends. One individual was even seen investigating an underwater camera.
“On my initial dive off the Lizard peninsula this year I saw five of these creatures,” they noted. “They are large specimens. We have two species in UK waters. One species is smaller, the size of a ball, but the *Octopus vulgaris* can be with a span of 1.5 meters.”
Looking Ahead & Coastal Highlights
If conditions remain mild heading into next year could lead to another surge next year, because based on records, under these conditions, the blooms have repeated for two years in a row.
“However, it is unlikely, from previous blooms, that it will become a permanent fixture,” they stated. “The ocean is full of surprises currently so it’s quite an unpredictable situation.”
The report also celebrated additional positive marine news across British shores, including:
- A record number of grey seals seen in one northern region.
- Record numbers of puffins on Skomer.
- The first recording of an unusual mollusc in a northern county, normally residing farther south.
- A variable blenny discovered off the coast of Sussex for the first time.
A Note of Caution
The year had its low points, however. “The period was framed by ecological challenges,” noted a conservation leader. “A significant shipping incident in the North Sea and an accidental discharge of tonnes of plastic biobeads off the southern coast served as stark reminders. Dedicated individuals are putting in immense work to defend and heal our marine habitats.”