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Whale Watch Skipper Blames Overfishing of Sprat for Turning West Cork Waters Into ‘Marine Desert’ as He Closes Business

27th May 2025
This whale tail sighting was no fluke for the RTÉ Nationwide team that went to sea with Cork Whale Watch in May 2018
This whale tail sighting was no fluke for the RTÉ Nationwide team that went to sea with Cork Whale Watch in May 2018. But the waters off Union Hall are now a “marine desert”, according to skipper Colin Barnes Credit: IWDG

A West Cork whale watching skipper has blamed overfishing of sprat for driving whales away from the area, forcing him to close his business after nearly 25 years.

According to the Irish Examiner, Colin Barnes of Cork Whale Watch says the waters off Union Hall have become “a marine desert” due to overfishing “by just a handful of trawlers”.

Cork Whale Watch previously sounded the alarm in late 2023, when he ended his season early citing the absence of the usual whale visitors, as reported on Afloat.ie.

“There is a simple reason for this situation, there are no sprat shoals anywhere for whales to feed on in West Cork waters as there always was,” the company stated at the time.

Sprat are an important food source for marine wildlife such as whales as well as dolphins, seals, larger fish and seabirds.

But the tiny fish is also a lucrative catch for the Irish fishing industry, which largely sells it on to aquaculture producers as fishmeal.

The Irish Examiner has more on the story HERE.

MacDara Conroy

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MacDara Conroy

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MacDara Conroy is a contributor covering all things on the water, from boating and wildlife to science and business

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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!