🔗 Share this article 2025 Declared The Year for Octopuses Off England's Southern Shores. Exceptionally high encounters of a remarkably clever cephalopod during the summer season have led to the declaration of 2025 as the year for octopuses in a seasonal assessment of UK coastal waters. Ideal Conditions Leading to an Explosion A gentle winter coupled with a remarkably hot spring prompted unprecedented numbers of common octopuses (*Octopus vulgaris*) to settle along the southern coastline of England, across the southwestern peninsula. “The scale of the catch was of the order of about thirteen times what we would normally expect in the waters around Cornwall,” stated an ocean conservation expert. “When we added up the numbers, around 233 thousand octopuses were found in British seas this year – which is a significant rise from the norm.” The common octopus is indigenous to British seas but ordinarily in such small numbers it is seldom observed. A population bloom is attributed to the dual effect of gentle winter conditions and a warm breeding season. This perfect scenario meant more larvae, potentially supported by significant populations of a favored prey species noted in recent years. A Historic Event The last time, a population surge of this scale of this size was documented in the 1950s, with historical records indicating the previous major event was in 1900. The huge numbers of octopuses meant they could be frequently seen in coastal areas for the first time in recent history. Video footage show octopuses being sociable – they are usually solitary – and moving along the bottom on their tentacle tips. One individual was even seen investigating a diver's camera. “The first time I dived in that area this year I saw five of these creatures,” the specialist continued. “They are sizeable. There are two types in these waters. The curled octopus is rather small, about the size of a football, but the *Octopus vulgaris* can be with a span of 1.5 meters.” Future Prospects and Other Surprises Another mild winter this coming winter could lead to another surge in 2026, because based on records, in similar situations, events have occurred consecutively for two years in a row. “But, it's improbable, based on past events, that it will persist indefinitely,” they said. “But the sea keeps giving us surprises these days so it’s hard to forecast.” The assessment also noted further encouraging coastal sightings across British shores, including: Highest-ever counts of grey seals recorded in Cumbria. Peak numbers of the iconic seabirds on a Welsh island. The initial discovery of an unusual mollusc in a northern county, usually found in the south-west. A Mediterranean fish species discovered off the coast of a southern county for the first occasion. Not All Positive News The year had its low points, however. “The year was bookended by environmental disasters,” stated an expert. “A significant shipping incident in March and a spill of industrial pellets off the Sussex coast were serious issues. Conservation teams are making huge efforts to protect and restore our shorelines.”
Exceptionally high encounters of a remarkably clever cephalopod during the summer season have led to the declaration of 2025 as the year for octopuses in a seasonal assessment of UK coastal waters. Ideal Conditions Leading to an Explosion A gentle winter coupled with a remarkably hot spring prompted unprecedented numbers of common octopuses (*Octopus vulgaris*) to settle along the southern coastline of England, across the southwestern peninsula. “The scale of the catch was of the order of about thirteen times what we would normally expect in the waters around Cornwall,” stated an ocean conservation expert. “When we added up the numbers, around 233 thousand octopuses were found in British seas this year – which is a significant rise from the norm.” The common octopus is indigenous to British seas but ordinarily in such small numbers it is seldom observed. A population bloom is attributed to the dual effect of gentle winter conditions and a warm breeding season. This perfect scenario meant more larvae, potentially supported by significant populations of a favored prey species noted in recent years. A Historic Event The last time, a population surge of this scale of this size was documented in the 1950s, with historical records indicating the previous major event was in 1900. The huge numbers of octopuses meant they could be frequently seen in coastal areas for the first time in recent history. Video footage show octopuses being sociable – they are usually solitary – and moving along the bottom on their tentacle tips. One individual was even seen investigating a diver's camera. “The first time I dived in that area this year I saw five of these creatures,” the specialist continued. “They are sizeable. There are two types in these waters. The curled octopus is rather small, about the size of a football, but the *Octopus vulgaris* can be with a span of 1.5 meters.” Future Prospects and Other Surprises Another mild winter this coming winter could lead to another surge in 2026, because based on records, in similar situations, events have occurred consecutively for two years in a row. “But, it's improbable, based on past events, that it will persist indefinitely,” they said. “But the sea keeps giving us surprises these days so it’s hard to forecast.” The assessment also noted further encouraging coastal sightings across British shores, including: Highest-ever counts of grey seals recorded in Cumbria. Peak numbers of the iconic seabirds on a Welsh island. The initial discovery of an unusual mollusc in a northern county, usually found in the south-west. A Mediterranean fish species discovered off the coast of a southern county for the first occasion. Not All Positive News The year had its low points, however. “The year was bookended by environmental disasters,” stated an expert. “A significant shipping incident in March and a spill of industrial pellets off the Sussex coast were serious issues. Conservation teams are making huge efforts to protect and restore our shorelines.”