2025 Declared 'The Octopus Year' Off England's Southern Shores.
Record-breaking encounters of a supremely intelligent sea creature during the summer season have prompted the declaration of 2025 as the year for octopuses in an annual review of Britain’s seas.
A Perfect Storm Driving a Surge
A gentle winter and then an exceptionally warm spring triggered a huge population of *Octopus vulgaris* to settle along the shores from Cornwall to Devon, spanning the Cornish and Devonian coasts.
“The volume of octopuses caught was approximately 13 times what we would typically see in Cornish waters,” commented a marine life specialist. “Calculating the figures, nearly a quarter of a million octopuses were found in British seas this year – representing a massive jump from the norm.”
The Mediterranean octopus is indigenous to these waters but usually so scarce it is infrequently encountered. An explosive growth is attributed to a combination of a mild winter and favorable spring temperatures. Such favorable circumstances meant more larvae, potentially supported by large numbers of spider crabs noted in recent years.
A Rare Phenomenon
The most recent occasion, such an octopus proliferation this significant was documented in the 1950s, with historical records indicating the last bloom prior to that happened in 1900.
The sheer quantity of octopuses meant they could be frequently seen in shallow waters for the first time in recent history. Video footage show octopuses gathering in groups – they are usually solitary – and ambulating along the ocean floor on their arm ends. One creature was even filmed grabbing submarine recording equipment.
“The first time I dived off the Lizard peninsula this year I saw five octopuses,” the officer added. “They are sizeable. Two kinds exist in these waters. One species is quite small, about the size of a football, but these newcomers can be with a span of 1.5 meters.”
Future Prospects and Other Surprises
If conditions remain mild this coming winter could lead to another surge next year, because based on records, with such patterns, populations have surged again for two years in a row.
“But, it's improbable, based on past events, that it will become a permanent fixture,” they stated. “Marine life is unpredictable these days so it’s quite an unpredictable situation.”
The annual review also highlighted further encouraging coastal sightings around the UK coastline, including:
- A record number of gray seals recorded in Cumbria.
- Record numbers of puffins on Skomer.
- A first-ever sighting of a rare sea slug in Yorkshire, usually found in the south-west.
- A type of blenny spotted off the coast of a southern county for the inaugural time.
Not All Positive News
Challenges were also present, however. “The period was framed by marine incidents,” noted a conservation leader. “A significant shipping incident in the North Sea and a spill of tonnes of plastic biobeads off the southern coast were serious issues. Staff and volunteers are making huge efforts to defend and heal our shorelines.”
