🔗 Share this article 2025 Declared The Year for Octopuses Off England's Southern Shores. Record-breaking encounters of a supremely intelligent sea creature during the summer season have led to the declaration of 2025 as the year for octopuses in a yearly report of UK coastal waters. A Confluence of Factors Driving a Surge An unusually warm winter coupled with a remarkably hot spring triggered a huge population of *Octopus vulgaris* to settle along the shores from Cornwall to Devon, from Penzance in Cornwall to south Devon. “The scale of the catch was roughly thirteen times what we would normally expect in this region,” explained a marine conservation officer. “Calculating the figures, approximately 233,000 octopuses were found in UK waters this year – which is a significant rise from what is typical.” The Mediterranean octopus is found in UK waters but typically so rare it is infrequently encountered. A sudden increase is the result of the dual effect of gentle winter conditions and favorable spring temperatures. These ideal conditions meant a higher survival rate for young, maybe aided by abundant stocks of a favored prey species seen in the area. An Uncommon Occurrence Previously, an octopus bloom this significant was recorded in 1950, with historical records indicating the previous major event was in 1900. The huge numbers of octopuses meant they could be frequently seen in nearshore environments for the first time in recent history. Underwater recordings show octopuses gathering in groups – they are usually solitary – and “walking” along the seabed on their tentacle tips. One creature was even seen investigating a diver's camera. “During a first dive there this year I saw five octopuses,” the officer added. “They are large specimens. There are two types in these waters. The curled octopus is rather small, the size of a ball, but the *Octopus vulgaris* can be with a span of 1.5 meters.” Future Prospects and Other Surprises If conditions remain mild going into 2026 could lead to a repeat event in 2026, because based on records, under these conditions, the blooms have repeated for two consecutive years. “But, it's improbable, based on past events, that it will become a permanent fixture,” they cautioned. “Marine life is unpredictable currently so it’s a very uncertain scenario.” The report also noted other “surprises, successes and joyful moments” around the UK coastline, including: A record number of gray seals observed in one northern region. Record numbers of puffins on an island off Wales. The first recording of an unusual mollusc in Yorkshire, normally residing farther south. A variable blenny discovered off the coast of a southern county for the inaugural time. Not All Positive News Not everything was good news, however. “The year was bookended by marine incidents,” stated an expert. “A major tanker collision in the North Sea and the release of tonnes of plastic biobeads off the southern coast were serious issues. Staff and volunteers are making huge efforts to protect and restore our marine habitats.”
Record-breaking encounters of a supremely intelligent sea creature during the summer season have led to the declaration of 2025 as the year for octopuses in a yearly report of UK coastal waters. A Confluence of Factors Driving a Surge An unusually warm winter coupled with a remarkably hot spring triggered a huge population of *Octopus vulgaris* to settle along the shores from Cornwall to Devon, from Penzance in Cornwall to south Devon. “The scale of the catch was roughly thirteen times what we would normally expect in this region,” explained a marine conservation officer. “Calculating the figures, approximately 233,000 octopuses were found in UK waters this year – which is a significant rise from what is typical.” The Mediterranean octopus is found in UK waters but typically so rare it is infrequently encountered. A sudden increase is the result of the dual effect of gentle winter conditions and favorable spring temperatures. These ideal conditions meant a higher survival rate for young, maybe aided by abundant stocks of a favored prey species seen in the area. An Uncommon Occurrence Previously, an octopus bloom this significant was recorded in 1950, with historical records indicating the previous major event was in 1900. The huge numbers of octopuses meant they could be frequently seen in nearshore environments for the first time in recent history. Underwater recordings show octopuses gathering in groups – they are usually solitary – and “walking” along the seabed on their tentacle tips. One creature was even seen investigating a diver's camera. “During a first dive there this year I saw five octopuses,” the officer added. “They are large specimens. There are two types in these waters. The curled octopus is rather small, the size of a ball, but the *Octopus vulgaris* can be with a span of 1.5 meters.” Future Prospects and Other Surprises If conditions remain mild going into 2026 could lead to a repeat event in 2026, because based on records, under these conditions, the blooms have repeated for two consecutive years. “But, it's improbable, based on past events, that it will become a permanent fixture,” they cautioned. “Marine life is unpredictable currently so it’s a very uncertain scenario.” The report also noted other “surprises, successes and joyful moments” around the UK coastline, including: A record number of gray seals observed in one northern region. Record numbers of puffins on an island off Wales. The first recording of an unusual mollusc in Yorkshire, normally residing farther south. A variable blenny discovered off the coast of a southern county for the inaugural time. Not All Positive News Not everything was good news, however. “The year was bookended by marine incidents,” stated an expert. “A major tanker collision in the North Sea and the release of tonnes of plastic biobeads off the southern coast were serious issues. Staff and volunteers are making huge efforts to protect and restore our marine habitats.”