Zoology

Citizen Scientists have Mapped the Whales, Porpoises, Dolphins, and Seals of the River Forth

Citizen Scientists have Mapped the Whales, Porpoises, Dolphins, and Seals of the River Forth

The River Forth, which is a major river in central Scotland, is home to a variety of marine mammals including whales, porpoises, dolphins, and seals. A 10,000-strong Facebook group has assisted Heriot-Watt researchers in documenting whales, porpoises, dolphins, and seals that visit the Firth of Forth.

Over the course of two years, over 450 people have reported sightings of various species in the Forth and posted them on the Forth Marine Mammals Facebook page.

Some of the most commonly sighted species in the River Forth include harbour porpoises, which are the smallest cetaceans found in Scottish waters, and common seals, which are often seen sunbathing on rocks and sandbanks along the river.

Humpback, minke and killer whales are among the marine animals that have been spotted, as are common and bottlenose dolphins and harbor porpoises. Bottlenose dolphins, which are known for their playful behavior, can also be seen in the river, particularly around the Firth of Forth area.

Emily Hague, a marine mammal researcher at Heriot-Watt University, has turned the data collected from April 2021 to April 2023 into an interactive map.

This project has raised awareness about the Forth’s marine life among the people who work, live and visit our shores, but it will also contribute to science and marine policy that in future might help better conserve and protect this magnificent location.

Emily Hague

Hague said, “Thanks to the hundreds of people who post on Forth Marine Mammals, we’re able to show the wealth and variety of marine life seen from our shores along the Forth.”

“Until quite recently the Forth was thought of as being pretty void of marine life, but this group of citizen scientists has helped prove that’s really not the case.”

“This project has raised awareness about the Forth’s marine life among the people who work, live and visit our shores, but it will also contribute to science and marine policy that in future might help better conserve and protect this magnificent location.”

One of the group’s most prolific members is Ronnie Mackie (69), who can see the Forth from his home in Kinghorn. As a recreational fisherman and local volunteer with Whale and Dolphin Conservation (WDC), Ronnie often posts sightings on the group.

Ronnie said, “I’ve always been a wildlife enthusiast and it’s still exciting to me when I spot a whale or dolphin in the Forth.”

“Facebook groups like these are great because when you can alert people that something’s on its way, and it gives them the opportunity to head to the shore or a good viewing point to spot something.”

“More people are becoming aware of all the animals that are swimming past us, and we set up a WDC Shorewatch site in Kinghorn where people can be trained in survey equipment. That’s also helped raise awareness.”

“I don’t have a favorite marine mammal, but I’m very interested in porpoises at the moment. I think they’re underreported because they’re small and hard to spot. But I’m keeping my eye out for them now!”

Emily Hague said, “We’re incredibly grateful to everyone who has reported a sighting over the past two years. We encourage anyone visiting the Forth to keep their eyes peeled for its wonderful wildlife and report back to the Forth Marine Mammals Facebook page.”