general about 30 different marine mammals have been reported in virginias coastal areas
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General
About 30 different marine mammals
have been reported in
Virginia’s coastal areas.
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Atlantic Bottlenose Dolphin
The most common marine mammal along our coast is the bottlenose
dolphin.
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Atlantic Bottlenose Dolphin
They are found from late spring well into the late
fall. They can grow to 12 feet and weigh 1400
pounds.
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Other Dolphin
Less common in Virginia waters are the stripped and saddleback dolphin. These two tend to be
found more often in the offshore
waters.
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Pilot WhalesPilot whales are
over 17 feet in length as adults. They are usually
found on the continental shelf where they feed
on squid.
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Pilot Whales
Lacking the “beak” that is found with the true
dolphins, the head is large and blunt.
This species is often seen by offshore tuna
fishermen.
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Harbor Porpoise
This is only true porpoise found in the North Atlantic.
It is a cold water species that is only found here in the
early spring.
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Harbor Porpoise
This is a small cetacean which has a maximum
length of five feet.
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Harbor Porpoise
Although they are found inshore, they are timid creatures that are not easily
sighted.
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Harbor Porpoise
Of all of the cetaceans they
have the shortest lifespan. They are
capable of reaching 20 years,
but few do.
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Sperm Whales
Sperm whales are the largest of the toothed whales.Found in all the world’s oceans, they are found offshore of the Virginia coast.
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Sperm Whales
They have huge heads! And posses the largest brain of any creature that
ever lived!
Forty percent of their body weight is
from their head.
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Sperm Whales
Sperm whales can dive to 3000 feet
where they feed on large squid. They
can stay submerged for over an hour.
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Sperm Whales
Sperm whales have 18 to 25 teeth on each side of their lower jaw. These
teeth fit into sockets in the
upper jaw.
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Sperm Whales
Adult males reach lengths of 49-59
feet and weigh up to 45 tons! Adult
females are much smaller with a
weight of only 14 tons.
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Sperm Whales
Newborn calves weigh
approximately one ton and are 11-16
feet long.
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Fin Whales
Fin whales grow to a length of 79 feet and are second in
size only to the blue whale.
They can weigh 50-70 tons!
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Fin Whales
Like the blue whales, they have
an expandable throat grooves which are used when feeding.
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Fin Whales
They have a varied diet which includes
squid, capelin, lanternfish, herring
and krill.
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Fin Whales
Fin whales are also one of the fastest whales . They are called
“the greyhounds of the sea” as they
travel over 23 mph.
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Fin Whales
Fin whales have been found
stranded in Virginia waters on many
occasions.
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Fin Whales
Many believe they are the most
abundant large whale in our
waters.
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Fin Whales
Fin whales apparently sleep on the surface at
night, and thus are subject to
collisions with ships.
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Fin Whales
One fin whale was inadvertently brought into
Norfolk Harbor draped across the bow of a freighter.
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Humpback Whales
Humpback whales are known for their
long fins and complex “songs”.
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Humpback Whales
Humpback whales Grow to about 50
feet which is about the length of a
school bus.
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Humpback Whales
Humpback whales are easily
recognized by their long flippers and
white bellies.
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Humpback Whales
This whale is probably seen by
more “whale watchers” than any other of the large baleen whales.
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Humpback Whales
Humpbacks filter their food through
baleen plates.They consume krill,
anchovies, sardines, mackerel
and other schooling fish.
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Humpback Whales
Humpback whales can live up to 80
years!
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Northern Right Whales
Right whales are about the same
size as humpback whales and are
occasionally found off our coast.
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Northern Right Whales
Right whales were named by whalers
who considered them the “right” whales to hunt.
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Northern Right Whales
They were rich in blubber, easy to catch and they
floated after being killed.
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Northern Right Whales
Right whales can be easily
recognized by the large whitish bumps called
callosities which are found on their
heads
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Northern Right Whales
Right whales are filter feeders that feed on plankton.
They swim around slowly with their mouths open.
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Harbor Seals
This is the only seal species that
might be encountered in
Virginia.
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Harbor Seals
They have been encountered near the mouth of the bay and up the James River to
Hopewell.
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Harbor Seals
Seals can be distinguished by their lack of an
external ear and wide tail flippers that point back.
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Harbor Seals
Harbor seals feed on fish, sea birds
and shellfish.
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West Indian Manatee
There have been several sightings of
manatees in Virginia waters. This includes
sightings on the Hampton River and the James.
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West Indian Manatee
Manatees are slow moving herbivores
that feed on aquatic plants.
They can grow over 13 feet.