Family: Otariidae
"Seals
are one of the most playful creatures in the ocean and the Australian Sea Lion
loves to interact and play with divers"
The Australian Sealion (Neophoca cinerea) is a large marine mammal that is a member of the furseal and sealion family Otariidae. Seals and Sealions are also referred to as Pinnipeds as they are part of the order Pinnipedia.
This
species can be found in the cool temperate waters of southern Australia and
can colonies can be from the Houtmans Abrolhos Islands near Geraldton in Western
Australia around to Kangaroo Island in South Australia. There are approximately
12,000 Australian Sealions found in Australia and these low numbers make it
one of the rarest seal species in the world. Its rare status let to it being
listed in February 2005 as a 'threatened' species under the Commonwealth Environment
Protection and Biodiversity Conservation Act.
The
Australian Sealion is unique in that it is an 'eared' seal. They differ from
other seals found in the northern Hemisphere by having external ears and they
also use their front flippers to propel themselves through the water. They are
more agile on land than other seal species as they are capable of walking on
all four flippers. The body is torpedo in shape making it very streamlined in
the water giving it good speed to chase prey and escape from predators such
as the great white shark. It is an opportunistic feeder and it is known to feed
on crustaceans, octopus, squid and it loves to catch fish.
The
males are commonly referred to as 'bulls' and they have a very thick neck and
powerful shoulders. The males are brown in colour whilst the females have silver
colouration on their backs with cream down their sides. The breeding cycle for
the Australian Sealion is considered to be from October to January and the breeding
cycle is approximately every 18 months.
The
Australian Sealion is a very inquisitive animal and when a boat pulls up to
a seal colony they dart into the water to investigate and play with the approaching
divers. They're speed and movements underwater make us look like mere mortals,
they have been recorded diving to depths of 270 metres and they can hold their
breath for at least 7 metres! Diving with the sealions provides one of the most
memorable experiences a diver can have.