🔗 Share this article 2025 Hailed as the 'Year of the Octopus' Along England's South Coast. Record-breaking encounters of a supremely intelligent sea creature this past summer have led to the designation of 2025 as the year for octopuses in an annual review of UK coastal waters. A Perfect Storm Driving a Surge An unusually warm winter followed by an exceptionally warm spring prompted unprecedented numbers of common octopuses (*Octopus vulgaris*) to settle along the shores from Cornwall to Devon, spanning the Cornish and Devonian coasts. “The reported landings was approximately over a dozen times what we would normally expect in this region,” stated an ocean conservation expert. “Based on the totals, around 233 thousand octopuses were caught in British seas this year – which is a significant rise from what is typical.” The Mediterranean octopus is native to UK waters but ordinarily in such small numbers it is seldom observed. A population bloom is caused by the dual effect of gentle winter conditions and favorable spring temperatures. This perfect scenario meant increased juvenile survival, possibly in part fuelled by abundant stocks of other marine life seen in the area. An Uncommon Occurrence Previously, a population surge of this scale this significant was documented in the mid-20th century, with historical records indicating the one before that occurred in 1900. The huge numbers 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 – contrary to their normally lone nature – and “walking” along the ocean floor on their arm ends. One individual was even recorded reaching for a diver's camera. “On my initial dive there this year I saw multiple octopuses,” the officer added. “They are sizeable. We have two species in the region. 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 going into 2026 meant it was possible another surge in 2026, because historically, with such patterns, events have occurred consecutively for two years in a row. “However, it is unlikely, based on past events, that it will become a permanent fixture,” they said. “The ocean is full of surprises at the moment so it’s quite an unpredictable situation.” The annual review also celebrated additional positive marine news along the coast, including: A record number of grey seals seen in one northern region. Exceptional populations of the iconic seabirds on Skomer. A first-ever sighting of an unusual mollusc in a northern county, normally residing farther south. A Mediterranean fish species discovered off the coast of a southern county for the inaugural time. Not All Positive News Not everything was good news, however. “The period was framed by ecological challenges,” noted a conservation leader. “A major tanker collision in March and a spill of industrial pellets off the southern coast served as stark reminders. Staff and volunteers are making huge efforts to protect and restore our marine habitats.”
Record-breaking encounters of a supremely intelligent sea creature this past summer have led to the designation of 2025 as the year for octopuses in an annual review of UK coastal waters. A Perfect Storm Driving a Surge An unusually warm winter followed by an exceptionally warm spring prompted unprecedented numbers of common octopuses (*Octopus vulgaris*) to settle along the shores from Cornwall to Devon, spanning the Cornish and Devonian coasts. “The reported landings was approximately over a dozen times what we would normally expect in this region,” stated an ocean conservation expert. “Based on the totals, around 233 thousand octopuses were caught in British seas this year – which is a significant rise from what is typical.” The Mediterranean octopus is native to UK waters but ordinarily in such small numbers it is seldom observed. A population bloom is caused by the dual effect of gentle winter conditions and favorable spring temperatures. This perfect scenario meant increased juvenile survival, possibly in part fuelled by abundant stocks of other marine life seen in the area. An Uncommon Occurrence Previously, a population surge of this scale this significant was documented in the mid-20th century, with historical records indicating the one before that occurred in 1900. The huge numbers 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 – contrary to their normally lone nature – and “walking” along the ocean floor on their arm ends. One individual was even recorded reaching for a diver's camera. “On my initial dive there this year I saw multiple octopuses,” the officer added. “They are sizeable. We have two species in the region. 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 going into 2026 meant it was possible another surge in 2026, because historically, with such patterns, events have occurred consecutively for two years in a row. “However, it is unlikely, based on past events, that it will become a permanent fixture,” they said. “The ocean is full of surprises at the moment so it’s quite an unpredictable situation.” The annual review also celebrated additional positive marine news along the coast, including: A record number of grey seals seen in one northern region. Exceptional populations of the iconic seabirds on Skomer. A first-ever sighting of an unusual mollusc in a northern county, normally residing farther south. A Mediterranean fish species discovered off the coast of a southern county for the inaugural time. Not All Positive News Not everything was good news, however. “The period was framed by ecological challenges,” noted a conservation leader. “A major tanker collision in March and a spill of industrial pellets off the southern coast served as stark reminders. Staff and volunteers are making huge efforts to protect and restore our marine habitats.”