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15 Cards in this Set
- Front
- Back
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Scientific name for the Sea Otter
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Enhydra lutris
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Estimated Sea Otter population in....
Aleutian Islands Prince William Sound AK Bering Island Russia California |
AI: 6000
PWS:6500 BI:3400 Cal: 2000 |
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What are Keystone Species
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species which have a large impact on other organisms within an ecosystem
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Are sea otters a keystone species?
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Yes in the North Pacific Ocean Ecosystem
Sea Otters-> sea urchins-> kelp |
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What is the sexual dimorphism of sea otters?
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males are 35% larger than females
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What is the source of thermal isolation for Sea Otters?
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Fur
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How many strands of hair do sea otters have in a square centimeter?
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150000
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What is the function of grooming for Sea Otters?
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grooming felts the fur which retains and air layer trapped within the fur
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How many times higher is the metabolic resting rate of a sea otter compared to other terrestrial mammals of equivalent size
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2-3 times
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How much % of their body weight do Sea Otters each per a day to keep up their metabolic rate?
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25%
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What is the maximum recorded dive depth for Sea Otters
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100m for males and 76m for females
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What is the maximum recorded dive duration for Sea Otters
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4.5 min
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Name the 9 prey items of Sea Otters
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clams, mussels, crabs, echinoderm, scallops, jingles, octopus, scate egg case, fat innkeeper
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What prey item makes up the highest % of a Sea Otters diet
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Clams
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The time budget of Sea otters is made up of which behaviors?
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resting, feeding, grooming, travelling, and interacting
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