Marine Ecology, June 6, 2007 Epipelagic/Antarctic 2.

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Presentation transcript:

Marine Ecology, June 6, 2007 Epipelagic/Antarctic 2

Focus: Antarctic penguins Gentoo penguins (Photo: B. Grunewald) Adelie penguins (Photo: K. Haberman) Chinstrap penguin (Photo: Shir Goldberg

Adaptations for swimming, diving, cold water & snow Solid bones Hindlimb  Rearward rotation  Webbed feet  Claws Forelimbs  Modified as paddles Air sacs: reduced Other…

Shift in penguin species on the Antarctic Peninsula

Black-browed albatross Feeds primarily on krill! Black-browed albatross Photo: K. Haberman

Feeds primarily on krill “Gack” defense by young Southern giant petrel Photo: K. Haberman

Wilson’s storm petrel “Jesus birds”: feed on near-surface zooplankton (smaller krill species, copepods, amphipods) Wilson’s storm petrel Photo: K. Haberman

Blue-eyed shag (cormorants) Feed on fish and squid; deep divers Have heavy bones like penguins Blue-eyed shag Photos: K. Haberman

Kelp gulls Limpet eaters! Kelp gulls Photo: K Haberman

Order Pinnipedia, Family Phocidae Crabeater seal Photo: Karen Haberman

Crabeater seal skull showing krill eater teeth!

Elephant seals

Order Pinnipedia, Family Phocidae Leopard seal Photo: Karen Haberman

Order Pinnipedia, Family Phocidae Weddell seal Photo: Karen Haberman

Order Pinnipedia, Family Otariidae Southern fur seal (related to sea lions) Photo: Karen Haberman

Order Cetacea; Suborder Mysticeti Humpback Whale Photo: K. Haberman

Order Cetacea; Suborder Mysticeti Minke Whale Photo: Project Atlantis

Order Cetacea; Suborder Mysticeti Blue Whale Photo: Project Atlantis

Order Cetacea; Suborder Odontoceti Family Delphinidae Orca Photo: NOAA