🔗 Share this article 2025 Proclaimed the 'Year of the Octopus' Off England's Southern Shores. Exceptionally high encounters of one of the world's most intelligent invertebrates over the summer months have resulted in the naming of 2025 as the year for octopuses in a yearly report of Britain’s seas. Ideal Conditions Leading to an Explosion A gentle winter coupled with a very warm springtime catalyzed a huge population of *Octopus vulgaris* to take up residence along England’s south coast, spanning the Cornish and Devonian coasts. “The reported landings was approximately thirteen times what we would usually anticipate in this region,” commented an ocean conservation expert. “When we added up the numbers, approximately 233,000 octopuses were caught in these waters this year – representing a massive jump from what is typical.” *Octopus vulgaris* is native to these waters but ordinarily in such small numbers it is rarely seen. An explosive growth is the result of a combination of gentle winter conditions and favorable spring temperatures. These ideal conditions meant a higher survival rate for young, possibly in part fuelled by large numbers of spider crabs noted in recent years. A Historic Event Previously, a population surge of this scale comparable was documented in the 1950s, with archival data indicating the one before that happened in 1900. The huge numbers of octopuses meant they could be readily observed in shallow waters for the first time in living memory. Diver videos show octopuses being sociable – they are usually solitary – and “walking” along the ocean floor on their tentacle tips. One creature was even filmed grabbing a diver's camera. “On my initial dive in that area this year I saw multiple octopuses,” the officer added. “They are sizeable. Two kinds exist in UK waters. The curled octopus is quite small, about the size of a football, but these common octopuses can be up to a metre and a half wide.” Predictions and Marine Joy A second gentle winter this coming winter could lead to a second bloom next year, because historically, under these conditions, events have occurred consecutively for two years running. “But, it's improbable, based on past events, that it will persist indefinitely,” they stated. “But the sea keeps giving us surprises at the moment so it’s quite an unpredictable situation.” The annual review also noted additional positive marine news across British shores, including: Highest-ever counts of gray seals seen in Cumbria. Peak numbers of the iconic seabirds on an island off Wales. A first-ever sighting of the *Capellinia fustifera* nudibranch in Yorkshire, normally residing farther south. A Mediterranean fish species found off the coast of a southern county for the inaugural time. Not All Positive News The year had its low points, however. “The calendar year was marked by marine incidents,” said a head of marine conservation. “A significant shipping incident in March and an accidental discharge of tonnes of plastic biobeads off the Sussex coast served as stark reminders. Staff and volunteers are making huge efforts to protect and restore our marine habitats.”
Exceptionally high encounters of one of the world's most intelligent invertebrates over the summer months have resulted in the naming of 2025 as the year for octopuses in a yearly report of Britain’s seas. Ideal Conditions Leading to an Explosion A gentle winter coupled with a very warm springtime catalyzed a huge population of *Octopus vulgaris* to take up residence along England’s south coast, spanning the Cornish and Devonian coasts. “The reported landings was approximately thirteen times what we would usually anticipate in this region,” commented an ocean conservation expert. “When we added up the numbers, approximately 233,000 octopuses were caught in these waters this year – representing a massive jump from what is typical.” *Octopus vulgaris* is native to these waters but ordinarily in such small numbers it is rarely seen. An explosive growth is the result of a combination of gentle winter conditions and favorable spring temperatures. These ideal conditions meant a higher survival rate for young, possibly in part fuelled by large numbers of spider crabs noted in recent years. A Historic Event Previously, a population surge of this scale comparable was documented in the 1950s, with archival data indicating the one before that happened in 1900. The huge numbers of octopuses meant they could be readily observed in shallow waters for the first time in living memory. Diver videos show octopuses being sociable – they are usually solitary – and “walking” along the ocean floor on their tentacle tips. One creature was even filmed grabbing a diver's camera. “On my initial dive in that area this year I saw multiple octopuses,” the officer added. “They are sizeable. Two kinds exist in UK waters. The curled octopus is quite small, about the size of a football, but these common octopuses can be up to a metre and a half wide.” Predictions and Marine Joy A second gentle winter this coming winter could lead to a second bloom next year, because historically, under these conditions, events have occurred consecutively for two years running. “But, it's improbable, based on past events, that it will persist indefinitely,” they stated. “But the sea keeps giving us surprises at the moment so it’s quite an unpredictable situation.” The annual review also noted additional positive marine news across British shores, including: Highest-ever counts of gray seals seen in Cumbria. Peak numbers of the iconic seabirds on an island off Wales. A first-ever sighting of the *Capellinia fustifera* nudibranch in Yorkshire, normally residing farther south. A Mediterranean fish species found off the coast of a southern county for the inaugural time. Not All Positive News The year had its low points, however. “The calendar year was marked by marine incidents,” said a head of marine conservation. “A significant shipping incident in March and an accidental discharge of tonnes of plastic biobeads off the Sussex coast served as stark reminders. Staff and volunteers are making huge efforts to protect and restore our marine habitats.”