Spiny seahorse 'under threat of extinction' in Dorset

Spiny seahorses may soon be locally extinct at Studland Bay in Dorset, according to the Seahorse Trust.

In 2008, about 40 were recorded on the seahorse study site at South Beach in the bay, but none have been spotted there since early 2015.

Miranda Krestovnikoff has been investigating for Inside Out and speaking to Neil Garrick-Maidment, from the Seahorse Trust, and the Royal Yachting Association's Emma Barton.