Cecily Clare - ebook sea otter

Sea Otters

By Cecily Clare

Contents Page: …..p 1
….. p 2
All about Sea otters ….. p 3
The saltwater ecosystem ….. p 4
Energy transfer - Quad 2 ….. p 5
Balances and Imbalances - Quad 3 ….. p 6
Adaptations - Quad 4 ….. P 7
Glossary
Works Cited

Page 1

ALL ABOUT SEA OTTERS

Sea otters are covered with
fur that is brown, black or
grey. They grow up to 1.5 to
1.8 meters tall and they
normally weigh up to 14 to
33 kg. Unlike most marine mammals they don’t have a
blubber. They are the heaviest mammal of the weasel family
but one of the smallest marine creatures. Sea otters have the
densest fur out of any animal on Earth. A sea otter can live
its whole life without leaving the water. Sea otters can dive
up to 330 feet when foraging for food. Sea otters are
omnivores.

Page 2

Sea otters live in the The Saltwater
also known as the marine biome,
Sea otters are surrounded by sea
lions fish, plants and much more.
The water gets colder depending on
how far in, or how deep you go. It is
about -1 degrees celsius for the sea otters and their
surroundings. The saltwater ecosystem has a colder climate
than other marine ecosystems. The deepest part of their
marine biome goes to 36, 200 feet deep. Sea otters are eaten
by orcas, great white sharks and other large predators,
however lots of other animals kill sea otters but don’t eat
them.

Page 3

Energy Transfer

Sea otters eat fish, sea urchins, abalones and
crabs. Crabs eat smaller fish, plants and sea stars.
Sea urchins eat plants. Fish eat smaller fish.
Abalones eat algae or other plants.

The northern elephant seals eat horn sharks,
horn sharks eat sea otters, sea otters eat sea
urchins, sea urchins eat kelp.

Page 4

Balances and Imbalances

Some of the invasive species in this ecosystem are green
crabs they are a serious threat to the marine ecosystems and
they are voracious predators, feeding on a variety of
intertidal animals. There is also a killer algae which is
harmful to the sea otters and their surrounding in their
ecosystem. The effect global warming has had on their
ecosystem is most species have not learnt to adapt to rising
ocean temperature since sea otters and other species rely on
this it is bad.
Pollution and overfishing and lots more are human impact
on saltwater ecosystems.

Page 5

Adaptations

Sea otters need the water to survive, even though they can

breathe above water they have all their food and livings in
the water. They also need sea urchins, fish and everything

else they eat because they need food to survive. Sea otters

also need their sharp teeth to kill animals, because when
they kill they rely on their teeth the most.

GLOSSARY Page 6
Adaptations
What plants or animals or plants need to
A​ lgae survive
Biome
Densest A plant that animals eat, that can be good or
Imbalance harmful to the animals.
Intertidal The ecosystems
Shiny or greasy
Invasive​ s​ pecies Something harmful like invasive species or
Marine something.
Predators The area of a seashore which is covered by a
Voracious high tide

Animals or plants that are harmful to the
ecosystem, or other animals other plants
A marine animal is an animal in the ocean.
When an animal preys on another animal, so
hunts and then eats them
Eager to do something or to be uncontrolled

Page 7

Works Cited

education.seattlepi.com/top-10-salt-water-ecosystem-4480.html
howweseetheenvironment.wordpress.com/2015/05/10/sea-otters-global-warmi
ng-warriors/
justfunfacts.com/interesting-facts-about-otters/B
kids.nationalgeographic.com/animals/sea-otter/#sea-otter-closeup2.jpg
marinbiome.weebly.com/adaptations.html
ocean.si.edu/ocean-life/5-invasive-species-you-should-know
sciencing.com/adaptations-ocean-plants-6560351.html
www.ducksters.com/science/ecosystems/marine_biome.php
www.getepic.com/app/read/5246
www.nationalgeographic.com/environment/oceans/critical-issues-marine-inva
sive-species