Comet 02.09.2007 Copyright HWDT Genevieve Leaper |
The
true identity of a famous killer whale known as ‘Dopey Dick’ –
who sparked widespread attention when he swam into Derry-Londonderry
almost 40 years ago – has at last been identified, thanks to
photographs published on social media.
The
orca attracted headlines in November 1977, when
he made his way up the River Foyle and into the
city,
apparently in pursuit of salmon, before remaining five kilometres
upriver of Loch Foyle for two days. Incredulous at the sight and
confused about the whale’s behaviour, locals dubbed him
‘Dopey
Dick’ –
presumably
after Herman Melville’s fictitious Moby Dick.
Nearly
four decades later, it has been revealed that Dopey Dick is in fact
the killer whale known more affectionately as Comet –
a
member of the highly vulnerable West Coast Community of killer
whales, the United Kingdom’s only known resident population of
killer whales which
is
at risk of imminent extinction.
Dopey
Dick’s true identity was discovered when old photographs were
uploaded onto a Facebook page. Killer whale expert Andy Foote and
Hebridean
Whale & Dolphin Trust Science
Officer Dr Conor Ryan recognised the whale in the images as Comet,
last recorded by the Trust off Dunvegan, Isle of Skye in September
2014.
Comet 14.09.2009 Copyright HWDT Nienke van Geel |
Comet
has been photographed many times in both Scotland and Ireland by
researchers and members of the public, enabling scientists to track
his movements.
Dr
Andy Foote said: “When I saw the photos on Facebook, I noticed that
the white eye patch of Dopey Dick sloped backwards in a really
distinctive fashion. This is a trait we see in all the West Coast
Community whales, but it’s not that common in other killer whale
populations. The photographs were all quite grainy, but it was still
possible to see some of the distinctive features unique to Comet. I
couldn’t believe it –
he
was already a full grown male back in 1977, when I was just
five-years old!”
Hebridean
Whale & Dolphin Trust Science
Officer, Dr Conor Ryan said: “Most of what we know about this
precariously small and isolated population of killer whales comes
from photographs submitted to us by members of the public. The
population is too small to study in a targeted way, so the public has
a big role to play.”
Hebridean
Whale & Dolphin Trust has been documenting the West Coast
Community’s behaviour since 1994. The four males and four females
are not known to interact with other orca populations in the
north-east Atlantic, and since studies began, have never successfully
reproduced. Sadly in January this year, one of the females –
Lulu
–
perished
after being stranded on the Isle of Tiree.
Comet 03.09.2014 Copyright HWDT Kerry Froud |
The
discovery that Dopey Dick was in fact Comet is significant because it
confirms suspicions that some of the whales in the endangered West
Coast Community are very old. They have not produced any calves since
records began. Fears for their survival are heightened following
recent discoveries that other killer whales in the region have very
high pollutant burdens that can cause toxic effects, including
infertility.
Photographs
are extremely valuable when researching whales and dolphins as they
allow scientists to identify individuals through unique markings.
Hebridean
Whale & Dolphin Trust encourages
people to report their sightings using an online form available at
www.hwdt.org.
Comet
has a distinctive dorsal fin about 1.8 m in height, which leans to
the right and has a notch near the top. Photographs confirm that he
was an adult male, at least 19 years old, in 1977 –
making
him at least 58 years old today. The latest match was made possible
thanks to the Scottish Orca Facebook page, which shares excellent
images of killer whales in Scottish waters.
Sightings
Officer of the Irish Whale and Dolphin Group Pádraig Whooley said:
“This match places Comet very much at the upper limits of the
typical life expectancy of male killer whales. Adult males generally
live to around 30 years, but with an upper range of 50-60 years. So
clearly time is not only running out for this individual whale –
it
is equally running out for whale biologists, who may not have much
time left to gather information on this unique local population of
killer whales that have made the waters of the British Isles their
home.”
Hebridean
Whale and Dolphin Trust and the Irish Whale and Dolphin Group are
charities in the west of Scotland and Ireland respectively. Both seek
reports from the general public of whale, dolphin and porpoise
sightings via their websites: www.hwdt.org
(west of Scotland) and www.iwdg.ie
(Ireland).