Marine Ecology, June 6, 2007 Epipelagic/Antarctic 2.
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Transcript of Marine Ecology, June 6, 2007 Epipelagic/Antarctic 2.
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Marine Ecology, June 6, 2007
Epipelagic/Antarctic 2
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Focus: Antarctic penguins
Gentoo penguins (Photo: B. Grunewald)
Adelie penguins (Photo: K. Haberman)
Chinstrap penguin (Photo: Shir Goldberg
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Adaptations for swimming, diving, cold water & snow
Solid bones Hindlimb
Rearward rotationWebbed feetClaws
ForelimbsModified as paddles
Air sacs: reduced
Other…
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Shift in penguin species on the Antarctic Peninsula
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Black-browed albatross Feeds primarily on krill!
Black-browed albatrossPhoto: K. Haberman
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Feeds primarily on krill “Gack” defense by young
Southern giant petrel
Southern giant petrelPhoto: K. Haberman
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Wilson’s storm petrel “Jesus birds”: feed on near-surface
zooplankton (smaller krill species, copepods, amphipods)
Wilson’s storm petrelPhoto: K. Haberman
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Blue-eyed shag (cormorants)
Feed on fish and squid; deep divers Have heavy bones like penguins
Blue-eyed shagPhotos: K. Haberman
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Kelp gulls Limpet eaters!
Kelp gullsPhoto: K Haberman
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Order Pinnipedia, Family PhocidaeCrabeater seal
Photo: Karen Haberman
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Crabeater seal skull showing krill eater teeth!
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Elephant seals
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Order Pinnipedia, Family Phocidae Leopard seal
Photo: Karen Haberman
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Order Pinnipedia, Family Phocidae Weddell seal
Photo: Karen Haberman
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Order Pinnipedia, Family Otariidae Southern fur seal (related to sea lions)
Photo: Karen Haberman
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Order Cetacea; Suborder Mysticeti
Humpback WhalePhoto: K. Haberman
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Order Cetacea; Suborder Mysticeti
Minke WhalePhoto: Project Atlantis
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Order Cetacea; Suborder Mysticeti
Blue WhalePhoto: Project Atlantis
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Order Cetacea; Suborder OdontocetiFamily Delphinidae
OrcaPhoto: NOAA