Rare seahorses found in Thames

Oct 07, 2011
Evidence of a colony of rare seahorses has been discovered in the Thames, the Environment Agency said on Friday.

Evidence of a colony of rare seahorses has been discovered in the Thames, during a routine fisheries survey at Greenwich, the Environment Agency said on Friday.

This is the first time that these rare creatures have been found so far up the Thames and the first time in this part of London.

The short-snouted seahorse (Hippocampus hippocampus), which grows up to 15cm (6 inches) is more commonly found in the waters of the Mediterranean and Canary Islands.

Seahorses have often been a visitor to around Britain but the agency said recent sightings suggest that there may be more permanent populations around the UK.

Seahorses have elaborate and are one of the few animals that mate for life.

Emma Barton, Environment Agency fisheries officer, said: "The seahorse we found was only 5cm (2 inches) long, a juvenile, suggesting that they may be breeding nearby.

"This is a really good sign that seahorse populations are not only increasing but spreading to locations where they haven't been seen before.

"We routinely survey the Thames at this time of year and this is a really exciting discovery."

The last sighting of seahorses in the Thames was much further down the river in Dagenham in 2008. They have not seen since.

The Thames has been reformed from a "biologically dead" river in the 1950s, as a result of sewage and industrial pollution, to a much cleaner today.

Barton added: "We hope that further improvements to water quality and habitat in the Thames will encourage more of these to take up residence in the river."

The agency said the was released back into the river.

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