DOWN TO THE SEA
“Hark,
now hear the sailors cry,
smell the sea, and feel the sky,
smell the sea, and feel the sky,
let
your soul & spirit fly, into the mystic.”
Van Morrison
Van Morrison
This week we will go down to the sea. I don’t know about you,
but the strangest feelings come over me when I am near the ocean. The smell of
the salt air, the sound of the waves crashing on the shore, and the feel of
sand between my toes, brings a comfort that touches a deep inexplicable part within my soul.
One of my favorite creatures lives in the sea. So let’s learn a bit about the Sea Otter.
One of my favorite creatures lives in the sea. So let’s learn a bit about the Sea Otter.
There are thirteen different species of semiaquatic or totally
aquatic otters around the world. The Sea Otter is actually the largest member
of the weasel family, weighing between 31 to 99 pounds. However, it is the
smallest sea mammal. Most sea mammals have a thick layer of blubber or fat,
which helps to keep them warm. The Sea Otter is different. It has a dense waterproof
coat of fur, the thickest of all animals (100,000 hairs per cm). Since the Sea
Otter does not have a layer of blubber to keep it warm, it must eat a lot (up
to 30% of its body weight) every day. This helps to fuel the Sea Otter’s
internal furnace. He also has a strong tail that acts as a rudder, and his
large hind feet are webbed and act like flippers.
This is a Sea Otter floating with a stone on his stomach.
He uses the stone to help break open the shells of his food.
So what does the Sea Otter eat?
They love to eat clams, mussels, sea urchins, crabs, and abalone
(abuh-loh-nee). They use tools to obtain and eat their food. They will dive to
the sea bottom and use rocks to dislodge prey from the ocean floor. Then
when it brings its meal to the surface, it will float on its back to eat. In
the case of the abalone, the Sea Otter will use a rock to break open the shell
to get at the 'meat' within. They have also been known to eat fish and octopuses.
Photo
credit: Mike Baird from Morro
Bay, USA
The Sea Otter is considered a keystone species. That
means that although its population is small in comparison to its environment,
it plays a critical role in that environment. In the case of our friend the Sea
Otter, he controls the sea urchin population, which would otherwise cause
damage to the kelp forest ecosystem.
Photo credit:
Chuck Kopczak
From what I have read, the kelp forests are considered
one of the most important ecosystems on the planet. They help to maintain the
marine life that thrives within them and are also considered influential in
effecting ecosystems near the shore. Charles Darwin compared them to the
forests on land.
"I can only compare these
great aquatic forests...with the terrestrial ones in the intertropical regions.
Yet if in any country a forest was destroyed, I do not believe so nearly so
many species of animals would perish as would here, from the destruction of
kelp. Amdist the leaves of this plant numerous species of fish live, which
nowhere else could find food or shelter; with their destruction the many
cormorants and other fishing birds, the otters, seals and porpoise, would soon
perish also; and lastly, the Fuegian[s]...would...decrease in numbers and
perhaps cease to exist.”
– Charles Darwin,
1 June 1834, Tierra del Fuego, Chile
Unfortunately, Sea Otter populations have decreased, and
after reading what Darwin had to say about kelp forests, you can understand how
this is all connected and can create a major concern, and not just for the Sea
Otters.
Sea Otters are legally protected in the United States,
but in spite of this, their populations have been slow to recover and their
range has decreased.
I have found a video that shows a mother Sea Otter
caring for and perhaps even teaching, her pup a new skill. I think you’ll enjoy
it.
I hope you learned a little bit about this fascinating sea
mammal. As always, I have pointed out the importance of protecting the
animals on the planet, including the Sea Otter. The disappearance of any one
species will affect many others, as we have learned here as well as in past posts.
My sincere thanks to Arkive for some of the pictures
and information (http://arkive.org).
To learn more about the Sea Otter, visit the web sites
listed below in Citations and References.
Enjoy!
Jeanne E. Rogers, Author
The Sword of Demelza
Award Winning Middle Grade Fantasy, Where Endangered
Animals Roam the Pages!
Citations and References:
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