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Whales
and Dolphins
The Firth of Lorn, Special Area of Conservation (SAC), is one
Britain's hot-spots for sighting whales, dolphins and their close
relatives porpoise. We work closely with, and indeed report all our
sightings to the Hebridean Whale and Dolphin Trust.
You will often hear wildlife experts refer to
this family as Cetaceans (pronounced see-tay-shuns). They are in
fact not fish, but air breathing mammals, as you or I.
Separated into two main groups, one of which
filter their food through special plates in the mouth (referred to
as Baleen whales), and the second taking larger seafood through
their toothed-mouths (called toothed-whales).
All Whales and Dolphins give birth to their
youngsters tail first. This allows the new-born infant to swim
immediately to the surface to take its first breath. There are over
thirty species inhabiting British waters, and below you will find
more information on the most frequently encountered species.
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Common
(or Harbour) Porpoise
We encounter the cute, little, harbour
porpoise throughout the year and they are seen on most of our Summer
trips. In fact The Firth Of Lorn SAC is such a rich place for this
delightful species, that they are one of the reasons the area has
received its conservation status.
An adult porpoise is about the same height
and weight as ourselves, and can live for up to 20 years.
More than 10,000 Harbour Porpoise are
accidentally caught in fishing nets in British waters each year, a
trend that threatens the survival of the species. It is therefore
very encouraging that fishermen within this area now use special
creels (similar to lobster pots) instead of monofilament nets
('walls of death') in order to protect our local population of
porpoises.
It used to be believed that porpoise had
power over the winds, and would predict storms by gambolling about.
The old sailors expression used to be "When the Sea-Hog
(Porpoise) Jumps, man the pumps"!
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Common
Dolphin
Widely accepted as amongst the most
intelligent of all animals, dolphins are regularly spotted moving in
schools of 10 or more. In fact, schools of hundreds and even over a
thousand are sometimes reported.
These fish eating mammals dive to a depth of
300 metres, and will usually stay submerged for between 10 seconds
and two minutes, however they are capable of staying underwater for
anything up to eight minutes, before returning to the surface to
breath.
The two metre long common dolphin weighs
around 110 kilos, and has black sides and upper flanks, with broad
yellow and white on its lower sides, fading to grey towards the
tail.
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Bottlenose
Dolphin
At nearly twice the length of the common
dolphin and five times as heavy, the bottlenose dolphin has a short
beak and protruding lower jaw, giving the appearance of having a
cheeky grin. Its high dorsal fin is situated in the middle of its
back, which is a more subdued brownish-grey, with paler underparts.
These inquisitive dolphins are usually seen
in smaller groups of ten or so animals, swimming at around 2 miles
per hour, but can reach up to 20 mph if alarmed. The babies, called
calves, are born in the summer months, and stay with their mother
for up to six years.
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Risso's
Dolphin
The blunt, rounded and beak-less head are the
most distinguishing features of Risso's Dolphin. At nearly four
metres long, and with a long, sickle-shaped fin, these dolphin's are
a similar sized to Bottlenose Dolphins, however they can appear even
larger because of their shape. These slow, graceful swimmers are
usually seen near to the coastline.
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White-Beaked
Dolphin
A medium sized dolphin, with a black body and
white throat and belly. This dolphin has a short, white beak. We
have seen these dolphin's forming a mixed group (or pod) with
Bottlenose Dolphins.
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Orca
(or Killer Whale)
Despite its alternative name, the Orca, or
Killer Whale, is in fact a member of the Dolphin family. A small pod
of this rare and beautiful creature lives in the Hebrides, and a
chance encounter can never be ruled out. With its very large dorsal
fin, and white and black patterning, this is perhaps the most
distinctive cetacean encountered on our trips.
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Minke
Whale
The Latin name for this, the smallest of the
baleen whales, means 'sharp-snouted', and this is a very accurate
description.
Weighing in at eight tons, this gentle giant
of West Coast waters is very regularly seen during our summer and
autumn boat trips. They are often seen during our 2 hour trips, but
to ensure the best opportunity for thrilling encounters, we would
recommend a four, or six hour trip.
Our Skipper's 16 years experience of such
encounters and intimate knowledge of the best locations gives you
the greatest chance of seeing these impressive leviathons. The young
whales are especially inquisitive, and often come very close, and
indeed under the boat, as if to show they are as curious about us as
we are about them.
When the whales are feeding on bait balls
(shoals of small fish) we see accompanying rafts of frenzied
seabirds, wheeling and diving, as they feed on the fish forced to
the surface by the whale's feeding activity.
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Sealife Adventures Dunaverty, Easdale By Oban, Argyll PA34 4RF Scotland. United Kingdom
Tel: 01631 571010 (Daytime), 01852 300203 (Evenings and Weekends)
Email: info@sealife-adventures.com
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