One regular contributor to the Citizen Fins project is Stuart Baines.
Mr Baines, 66, from Scarborough, is the local Sea Watch Foundation representative – a charity that monitors whales, dolphins, and porpoises – and set up the Scarborough Porpoise Facebook page.
“I have been recording them in the Yorkshire area for about 15 years and then about 10 years ago I thought I’ll set up this Facebook page and see if anyone might be interested in seeing what’s in the area,” he said.
“And that’s blossomed considerably and got to more than 120,000 followers.”
Mr Baines said he started noticing regular dolphin activity on his morning commute to work as a solicitor.
“At the time I worked for a firm of solicitors in Scarborough and every morning on my way to work I would drive around Marine Drive and then come back that way in the evening and jot down what I saw.
“And then I retired four years ago and since then, I’m becoming more involved. And I’m down down there far too much.”