Blue Whale

Endangered Animals of Antarctica

Physical Features

http://www.arkive.org/blue-whale/balaenoptera-musculus/video-00.html
  • Blue whale-mammal
  • Is 88 feet long, weighs 420,000 pounds
  • Because of its long flippers, it swims very fast
  • Their skin is made of blubber
  • Life span-110 years
  • Live in small groups or pairs
  • Speak to each other across the ocean
  • Breathes air every 20 minutes
(Nat Geo) (Enchtd Lrng) (BW book)

Save the blue whales!

Food Chain

  • Mainly eat krill, almost 8,000 pounds a day
  • Predators-Killer whales
  • They are carnivores
  • Prey-Krill (1 to 2 centimeters)
  • To eat, they filter feed-
  1. This is when they swim towards a group of their prey (krill) with mouth open eat the krill with water too
  2. Then they push water out of their mouths while keeping the krill inside the baleen bristles
  • Usually found where large groups of krill are
(Whl Wrld)

Habitat

  • In most oceans around the world
  • terrain-open ocean
  • Live in the water but breathe air every 20 minutes
  • Feeds at the surface or 100 meters deep
  • During the summer- near ice or the surface
  • Before winter begins- start migrating towards the equator
(Ark)

Adaptation

  • Teeth are baleen plates that filter krill
  • Eyesight is good in and out of water
  • Have great hearing
  • Communicate by vocolization- since water is denser than air, sound transfers longer and faster
  • Usually swims where krill are located (near the surface)
  • Often swim alone, if not then in pairs or small groups
(SC.org)

Reasons for endangerment and critical info.

  • Hunted for blubber and oil
  • 1900s/1960s- 360,000 whales were killed
  • 1966 International Whaling Commission(IWC) have protected the blue whales
  • IWC has banned the hunting of blue whales nationwide
  • There are currently 4,500 blue whales on the planet
  • They are hunted for their...
  1. Blubber, which is used for soap making and oil
  2. Keratin plates, which are used for umbrella ribs, carriage springs, and were used as plastic or steel before we had them
  • Pollution, oil spills, ship crashes, and noise pollution are all things that threatens blue whales
  • Noise pollution- when there is a lot of noise around blue whales and they can't hear the other blue whales trying to call them
  • The NOAA fishery is helping by...
  1. Protecting their habitat
  2. reducing ship collisions
  3. Keeping in mind that pollution is bad
  4. Making rules for whale watching boats
  5. Encouraging the ban on hunting the blue whales
(Nat Geo) (Si Agl) (Nmfs)

So help save the blue whales and become a part of the solution today!