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Alaska has more coastline than any other state. It is also the
only state that borders three seas, the Arctic Ocean, Pacific
Ocean and Bering Sea. Coastal Waters around Alaska offer
excellent opportunities to see marine life including whales,
dolphins, porpoise, seals, sea lions, fur seals, walrus, sea
otters, and more.
The sea otter has the thickest fur in the animal kingdom and
depends on air trapped in the fur to help them maintain their
body temperature. A member of the weasel family, the sea otter
is one of the only mammals to use tools, often relying on small
rocks or other shellfish to pry prey from rocks, and hammer or
pry open their food. You're sure to see sea otters on a trip
into Prince William Sound. They're bigger than their freshwater
counterparts and eat huge amounts of seafood. They divide their
days between grooming their fur and eating. They live from 10 to
20 years.
Harbor seals eat fish, and you'll see them swimming gracefully
in the water. On land, it's a different story. They're really
too fish-like to be able to maneuver around like most other
mammals. So when they're out of the water, they tend to stay in
groups for their protection. Harbor seals are found on icebergs
in June when they give birth, and in August when they molt.
Stellar Sea Lions are the "Lion of the Sea" . They earned ithe
name because of their distinctive bellowing roar. As the largest
sea lions, males can reach eleven feet in length and weigh up to
2,200 pounds. The Steller Sea Lion uses its flippers as rudders
for steering, and travels up to 250 miles from home in search
for food. Out of the water, Sea Lions look like couch potatoes.
Or even like couches. In the water, they're graceful and
beautiful. They tend to be big and brown, whereas seals are
black or gray. Sea lions' long flippers give them some mobility
on land.
You may well see black-and-white dall porpoises running
alongside your boat out in Prince William Sound. They kick up a
rooster tail of spray when they surface and are enthusiastic bow
riders on boats. They're very fast -- and black, with a white
belly. The coloring is similar to an orca, but they're smaller -
and don't have the very large dorsal fin of an orca whale. They
can travel up to 50 mph. This porpoise has a stocky, black body
with large white sections on the flanks and belly. The head is
small and beakless. They are 6 to 8 feet long, weighing up to
400 pounds. They are commonly seen offshore and inshore from
southern California to Alaska. Being a deepwater animal it comes
close to shore where their are canyons or deep channels.
Sightings are common in Hecate Strait, Queen Charlotte Strait,
Juan de Fuca Strait, and exposed seaways like Queen Charlotte
Sound, Dixon Entrance and Fitzhugh Sound.
The genus name for the walrus, Odobenus (meaning tooth-walker),
refers to one of their most prominent characteristics, their
tusks. These tusks, which are elongated upper canine teeth, are
present in both males and females. The body form is basically
like a sea lion, and they have flexible hind flippers that can
be rotated forward, a thick, heavy neck, and a broad muzzle that
bears a heavy, bristly moustache. They are huge animals. Adult
bulls often approach 2 tons in weight, and the females may
exceed 1 ton. The tusks are used for fighting, for climbing on
both land and ice, and for emergencies of various kinds. A
female walrus was observed literally demolishing a heavy piece
of ice to free her calf, which had fallen into a crevasse. The
tusks were as effective as a pick-axe.
The giant Pacific octopus is an intelligent creature. In
laboratory tests and aquariums, it has been able to solve mazes
very quickly, unscrew jar lids to retrieve food inside the jar,
and even mimic another octopus in a different tank. The giant
Pacific octopus is one of the largest species of octopods. Its
reddish-brown body, called the mantle, plus four pairs of arms,
measure on average about 16 feet long from arm tip to arm tip.
The record weight for a Pacific giant is 600 pounds, but most
weigh about 50 to 90 pounds. Newly hatched young are the size of
a grain of rice.
Salmon sharks take a bite out of Alaska's salmon runs, but
they're not at the top of the food chain when fishing charter
boats are in the area. Gulf of Alaska anglers have caught salmon
sharks averaging from 250 to 400 pounds and sometimes weighing
over 700 pounds. Heavy tackle is needed for these edible sharks,
which resemble great white sharks and leap like marlin when
hooked.
In the North Pacific waters of Alaska there are five types of
shrimp; Northern Pink, Humpy, Coonstripe, Sidestripe, and Spot
shrimp. Alaska's shrimp, the Palandid family, is an odd bunch,
being one of the few animals on the earth that change sex during
their lifetime. They spend their early lives as males then
transform into females for the remaining part of their lives.
Females can carry from a few hundred eggs up to 4000 eggs. They
spawn in the spring and fall. |