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HUMPBACK WHALE

Published on Nov 19, 2015

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PRESENTATION OUTLINE

HUMPBACK WHALE

(Megaptera novaeangliae)

Size

  • Length 36-49 ft. (11-15 m)
  • Weight 25-44 tons (25,000-45,000 kg).

Habitat

  • In winter and summer found in coastal areas or near islands; migrates through open oceans

Diet

  • Feeds on schooling fish or krill.

Reproductive

  • In fall moves south to tropical waters to mate or give birth.
  • Single young are born every 2 years.

Behavior

  • Blows 2-8 times before raising flukes high into the air and diving for up to 20 minutes.
  • Acrobatic; can leap clear of the water when breaching, also frequently slaps water with long flippers or tail.
Photo by Pat Hawks

Behavior

  • Groups may cooperate to produce a curtain or cloud or bubbles to trap and concentrate prey.
  • Also lunge feeds.
Photo by wjklos

Nesting

  • Most commonly seen alone or in small groups but may congregate in feeding and wintering grounds.
  • W. Alaska and Aluetian Is. to Baja California in pacific, Baffin I. to N.Y. in Atlantic.
  • Occurs worldwide

Call or Noise

  • Long complex songs (audible to humans) given by males during the winter breeding season.
  • Grunts and and whoops or song fragments may be given in summer.

Physical Characteristics

  • Head broad and rounded, snout and lips marked with fleshy knobs.
  • Baleen black with coarse fringes.
  • Flippers very long, bumpy on leading edge, white above and below(in North Atlantic) or black above , white below (in North Pacific).

Physical Characteristics

  • Dorsal fin humped or stepped,followed by a series of bumps on the tail stock.
  • Tail flukes broad, deeply notched, white below.
  • Blow: Short (10 ft./3 m), broad, and bushy.
Photo by Michael Dawes