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Marine Wildlife
Sea trout
A “major fish kill” in a Co Derry river has tallied than 2,000 fish across a range of species, as BBC News reports. The incident was discovered last Friday morning (24 November) on the Muff River in Eglinton, near the…
Curlews - Nationally, there are just 100 breeding pairs remaining in Ireland
Curlews along the Irish coastline are showing a positive trend, with the highest number of young fledged into the wild since 2017, according to a State conservation programme. A total of 38 breeding pairs have been confirmed in the nine…
This whale tale sighting was no fluke for the RTÉ Nationwide team that went to sea with Cork Whale Watch in May 2018
A West Cork-based whale-watching tour business has ended its 2023 season early, blaming overfishing of sprat for the absence of the usual whale visitors to the South Coast. In a social media post on Monday (27 November), Cork Whale Watch…
Dr MaryAnn Bolger, TU Dublin presenting the Design For Good Award to Brian Byrne, Lead Designer at Lands for the Fair Seas Project
The Fair Seas Project was a winner at this year’s Institute of Designers in Ireland (IDI) Awards - the Design for Good Award, for their work on driving awareness about the need for greater marine biodiversity protection in Irish waters.…
A mother and baby Sperm whale. Sperm whales were a primary target of the commercial whaling industry from 1800 to 1987, and their population is still recovering and listed as an endangered species
Irish waters are home to almost 400 sperm whales, and now the Caribbean island of Dominica says it intends to create the world’s first dedicated reserve for this particular cetacean. Dominica has some 200 species named after the waxy substance,…
The Black-legged Kittiwake has declined by 42% since the last census, but the population in Northern Ireland “bucks this trend” and shows an increase of 33%, according to a published census
Over three-quarters of seabird species breeding in Ireland have increased, with only two species declining, according to a census just published. The “Seabirds Count” census shows that Ireland is particularly important for species such as Roseate Tern and European Storm-petrel…
Critically endangered Flapper Skate (Dipturus cf intermedius) measuring 188 cm total length and weighing c100 kg, captured, tagged and released by the MFV Eblana in the central Irish Sea on 12/10/2022
Sightings of rare marine species will increase Ireland’s “scientific and biological knowledge bank”, the Sea-Fisheries Protection Authority (SFPA) has said in an appeal during Science Week. The SFPA says it is encouraging the public - and particularly those in the…
The Irish Wildlife Trust (IWT) has welcomed the agreement on the text of the Nature Restoration Law, the first-ever binding EU law to restore 20% of European land and seas by 2030. The IWT’s marine advocacy officer Grace Carr had…
A reared 11 months old juvenile European spiny lobster
French and Corsican marine scientists have succeeded in rearing juveniles of the vulnerable European spiny lobster. A team from the University of Corsica and the French National Centre for Scientific Research (CNRS) has achieved what it terms a “scientific and…
North Atlantic invasive species - The Lionfish
Lionfish may be one of the most infamous invasive species in the western North Atlantic, but their spread is only the tip of the iceberg, according to an international research team. The new study involving Queen’s University Belfast (QUB) scientists…
Darwin Day can be watched live on YouTube on Sunday. Scroll down the story for the link
Leading ocean conservationists, including marine biologist Dr Sylvia Earle, will participate in a public online broadcast from Rio de Janeiro to mark Darwin Day this Sunday, November 12th 2023. Philippe Cousteau, founder of EarthEcho International and grandson of Jacques Cousteau,…
Irish underwater cameraman Ken O’Sullivan captured Ireland’s marine wildlife like never before in North Atlantic: The Dark Ocean
Maritime TV documentary North Atlantic: The Dark Ocean has been awarded the Grand Prix Best Film of Festival Award at the Wildlife Film Festival Rotterdam, besting the likes of BBC’s Our Frozen Planet. As previously reported on Afloat.ie, the natural…
Fin-Tastic Sharks at Galway Science and Technology Festival
The Marine Institute, alongside the Explorers Education Programme for primary schools, will be showcasing marine science at the 2023 Galway Science and Technology Festival this weekend. Families are invited to the Bailey Allen Hall on the University of Galway campus…
Dr Nick Payne and Dr Jenny Bortoluzzi from Trinity College Dublin’s School of Natural Sciences, with a sandtooth tiger shark, that descended from the megalodon, which died after stranding at Kilmore Quay, Co Wexford. Autopsies with three such confirmed strandings off Ireland and Britain show the species is warm-blooded
When the fearsome megalodon became extinct, it may have been because it didn’t have enough food. Unlike most sharks, the star of the 2018 film, “The Meg”, had a large appetite due to its warm-blooded nature - like its descendant,…
File image of a dunlin in shallow water
The Marine Institute recently hosted a Birdwatch Ireland training workshop for the winter Irish Wetland Bird Survey (I-WeBS). The event was attended by 65 people and was used as a mechanism to introduce attendees to I-WeBS with a view to…
Barrel jellyfish were the most common, according to the Marine Conservation Society's annual wildlife sightings report, with 467 sightings in total
There was a 32 per cent increase in sightings of jellyfish around Irish and British waters over the past year, the Marine Conservation Society (MCS) says. Barrel jellyfish were the most common, according to its annual wildlife sightings report, with…

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!