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Sightings of Common Dolphin Increase on UK-France Routes Based Out of Portsmouth & Poole

27th July 2024
Sightings of common dolphins increase on UK-France routes out of Portsmouth and Poole, according to cetacean charity ORCA, which for 15 years has partnered with Brittany Ferries. Research by scientists on board is also carried out on the company’s UK-Spain and France-Ireland routes.
Sightings of common dolphins increase on UK-France routes out of Portsmouth and Poole, according to cetacean charity ORCA, which for 15 years has partnered with Brittany Ferries. Research by scientists on board is also carried out on the company’s UK-Spain and France-Ireland routes. Credit: ORCA

Passengers on UK-France ferry services of Portsmouth-Caen and Poole-Cherbourg can expect to spot more marine wildlife, in this case common dolphins.

That's according to one of the findings in whale and dolphin charity ORCA’s The State of Cetacean Report 2024.

Scientists say reasons are not fully understood but that the rise could be linked to climate change and associated movement in marine ecosystems.

Brittany Ferries has partnered with ORCA for the last 15 years, where ocean conservationists and marine scientists have been travelling with the company also on UK-Spain, and France-Ireland routes.

Their work includes enthusing and educating passengers, and feeding data on whale and dolphin sightings to governments as part of the EU Habitats Directive.

Eight Ocean Conservationists worked on Brittany Ferries’ ships last year, the most ever. They travelled more than 106,000 km on board Pont-Aven, Galicia, Salamanca and Santoña and chalked-up 15,493 sightings of 24,926 animals (some in multiple pods). Thirteen separate cetacean species were observed throughout the year.

All these cruise-ferries, Afloat highlight, also operate on the company’s Ireland-France/Spain routes in addition to the Amorique.

Fin whale hotspot

Through repeated observations, ORCA has identified a hotspot in the southern Bay of Biscay for fin whale spotting. Canyons are thought to concentrate prey species such as northern krill and anchovy and it is estimated that more than 10,000 of the planet’s second largest creature aggregate over the Abyssal Plain during the summer.

It’s a fine dining spot for fin whales, but also a mouth-watering opportunity for cetacean spotters travelling from the UK to Spain by ferry. With a 360 degree view of the sea, and guided by ORCA spotters, they have the perfect opportunity to see this beautiful, endangered species.

“Our partnership with ORCA is something we value incredibly highly,” said Julian Patchett partnership manager Brittany Ferries. “On the one hand there is the wonderful experience passengers have seeing magnificent creatures at sea, and learning more about them on their voyage to France or Spain. On the other is the vital scientific work that underpins our partnership, helping protect whale and dolphin populations for future generations.

“It was through our partnership with Brittany Ferries that ORCA came into being and laid the foundations for us to become the global organisation that we are now,” added Lucy Babey, director of programmes ORCA. ”Being able to open up the oceans for ferry passengers, and show them the wonders of our marine wildlife remains a key part of what we do. For many people, spotting their first whale or dolphin in its natural environment is something that stays with them forever and this partnership makes that magic happen.”

Ship strike prevention

For passengers, spotting a whale or dolphin (or giant sunfish or beautiful basking shark) is always a joyful experience. But for ORCA, the opportunity to travel repeatedly on the same seaborne routes presents the perfect opportunity for serious scientific study.

ORCA’s ongoing work on preventing so-called ‘ship strike’ is one such example. Observation-based research on whale behaviour in proximity to large vessels took place on Brittany Ferries ship Galicia in 2023, with a dedicated scientist stationed on the bridge.

The research is far from complete. But already there is some evidence to suggest that different whale species behave differently when faced with a large vessel. Fin whales, for example, seem to be less attentive than other species. Around ten “near-miss” events occurred with fin whales during 2023 bridge observations and the animals did not react to the ship’s presence. This was in direct contrast with other species observed like Cuvier’s beaked whales.

It is hoped that following further research, findings could have a direct impact on reducing collisions between whale and ship on the global stage. For example, deck crews travelling through whale and dolphin hotspots could be advised of the most appropriate course of action to take if ship strike is likely or imminent, depending perhaps on the behaviour patterns of the species encountered.

Published in Marine Wildlife, Ferry
Jehan Ashmore

About The Author

Jehan Ashmore

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Jehan Ashmore is a marine correspondent, researcher and photographer, specialising in Irish ports, shipping and the ferry sector serving the UK and directly to mainland Europe. Jehan also occasionally writes a column, 'Maritime' Dalkey for the (Dalkey Community Council Newsletter) in addition to contributing to UK marine periodicals. 

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Marine Wildlife Around Ireland One of the greatest memories of any day spent boating around the Irish coast is an encounter with marine wildlife.  It's a thrill for young and old to witness seabirds, seals, dolphins and whales right there in their own habitat. As boaters fortunate enough to have experienced it will testify even spotting a distant dorsal fin can be the highlight of any day afloat.  Was that a porpoise? Was it a whale? No matter how brief the glimpse it's a privilege to share the seas with Irish marine wildlife.

Thanks to the location of our beautiful little island, perched in the North Atlantic Ocean there appears to be no shortage of marine life to observe.

From whales to dolphins, seals, sharks and other ocean animals this page documents the most interesting accounts of marine wildlife around our shores. We're keen to receive your observations, your photos, links and youtube clips.

Boaters have a unique perspective and all those who go afloat, from inshore kayaking to offshore yacht racing that what they encounter can be of real value to specialist organisations such as the Irish Whale and Dolphin Group (IWDG) who compile a list of sightings and strandings. The IWDG knowledge base has increased over the past 21 years thanks in part at least to the observations of sailors, anglers, kayakers and boaters.

Thanks to the IWDG work we now know we share the seas with dozens of species who also call Ireland home. Here's the current list: Atlantic white-sided dolphin, beluga whale, blue whale, bottlenose dolphin, common dolphin, Cuvier's beaked whale, false killer whale, fin whale, Gervais' beaked whale, harbour porpoise, humpback whale, killer whale, minke whale, northern bottlenose whale, northern right whale, pilot whale, pygmy sperm whale, Risso's dolphin, sei whale, Sowerby's beaked whale, sperm whale, striped dolphin, True's beaked whale and white-beaked dolphin.

But as impressive as the species list is the IWDG believe there are still gaps in our knowledge. Next time you are out on the ocean waves keep a sharp look out!