Orion the humpback whale ‘a dream sighting’ for marine observers

27 Jul 2021

Orion the humpback whale. Image: Dr Justin Long.

A member of the Irish Whale and Dolphin Group spotted the humpback whale while out conducting a survey on marine life off the Donegal coast.

Marine mammal observer Dr Justin Judge described the moment he spotted a lone humpback whale off the coast of Donegal as “a dream sighting.”

Judge spotted the whale at 9.30am on 9 July while representing the Irish Whale and Dolphin Group (IWDG) on board the Marine Institute’s RV Celtic Explorer.

The group of researchers and observers was out on the waters around 60km north-northwest of Malin Head when they saw the whale. They were carrying out the annual Western European Shelf Pelagic Acoustic Survey (WESPAS).

“This is a dream sighting for a marine mammal observer,” Judge said. He explained that the creature would be nicknamed Orion – which had a personal meaning for Judge and his family.

“The individual humpback whale ‘Orion’ has been named after the Greek mythological hunter, since the whale was moving with the fish stocks for food. It is also my son’s middle name so fitting on both fronts,” Judge said.

He added that the team had also observed “a lot of feeding action from a multitude of cetacean species that day, including bottlenose, common, Risso’s and white-sided dolphins, grey seals and minke whales.”

To date, the IWDG has documented 112 individual humpback whales in Irish waters since 1999, many of which are recorded year after year. Humpback whales are frequent visitors to Irish waters as they are an ideal feeding area for humpback whales stopping off in the area on their migration across the Atlantic.

The beasts are identifiable thanks to the distinctive pattern on the underside, which is unique to each individual whale.

“Observing any apex predator in its natural environment is exciting but a new humpback whale for Irish waters, this is special,” said Ciaran O’Donnell, WESPAS survey scientist at the Marine Institute.

The Marine Institute’s WESPAS is carried out annually and surveys shelf seas from France, northwards to Scotland and west of Ireland. WESPAS is the largest single-vessel survey of its kind in the northeast Atlantic, covering upwards of 60,000 nautical miles every summer. The survey is funded through the European Maritime Fisheries and Aquaculture Fund under the Data Collection Programme, which is run by the Marine Institute.

Blathnaid O’Dea is Careers reporter at Silicon Republic

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