They can be seen interacting in the sheltered bays and
coves close inshore and near river mouths. The southern
right whale can be distinguished from other whales by its
V-shaped 'blow' and the callosities which appear on and
around its head. Although many people mistake these callosities
for barnacles and although barnacles and other sea life
live on these patches on the whale's head, the callosities
are actual outgrowths of tough skin which form different
patterns on each individual and which are a useful form
of identification. To hear a whale 'blow' is like hearing
the breath of life. The blow is a cloud of vapour produced
largely by condensation when warm breath comes into contact
with cooler air. It also contains oily mucus from the respiratory
tract of the whale. Whales are large brained and sensitive
creatures. Strong bonds exist between females and their
calves. In normal circumstances they are non-aggressive
and gentle towards man. As yet, knowledge about whales and
the role they play in the marine ecosystems is fragmentary.
However initial benign research indicates that whales are
of greater benefit alive than dead to man. For this reason,
if for no other, they need our protection.
Description
Colour black with occasional white markings along back
and underside; the body is stocky and fat, smoothly rotund
without a trace of dorsal fin or any ridge along the back.
Length
14 - 18 metres
Mass
40 to 80 tons, averages about 54
Cruising Speed
5 - 8 km/h or 2 - 3 knots
Gestation
About one year. Calves 5 - 6 metres at birth. Growth rate
about 3cm a day. August is the best calving month. Pregnancy
every 3 - 7 years. Lactation 4 - 8 months.
Longevity
Estimated to be 90 - 100 years.
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WHALE COMPARISON CHART
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