Juvenile great white shark caught off Spain revives 160 year Mediterranean ghost population puzzle
The Mediterranean's great white sharks were long thought all but gone. A juvenile about two meters long, caught off eastern Spain, says otherwise. A review of 160 years of records, 62 sightings since 1862, finds the young animal hints at active breeding. Per Acta Ichthyologica.
For decades the great white shark has been little more than a rumor in the Mediterranean, sighted so seldom that researchers describe the population as a ghost. A recent find off the eastern coast of Spain has put it back in focus. Local fishermen accidentally caught a juvenile great white measuring roughly two meters and weighing between 80 and 90 kilograms, an unusual record for a species many assumed had all but vanished from these waters. The encounter prompted a team led by Jose Carlos Baez to compile every documented Mediterranean sighting they could find, stretching back to 1862. Published in the journal Acta Ichthyologica et Piscatoria, the 160-year review counted 62 records in total and concluded that the great white has maintained a continuous, if elusive, presence throughout that period rather than disappearing and returning. The detail that drew the most attention from the authors was the animal's age. Adult sightings tell you sharks pass through. A juvenile raises a different and more consequential question: whether the Mediterranean still hosts active reproduction. For a top predator whose health reflects the state of the wider ecosystem, evidence of breeding carries weight well beyond a single catch. Per Acta Ichthyologica et Piscatoria.