EARTH 10 Lecture Notes - Lecture 3: Swim Bladder, Glycoprotein, Antifreeze
Document Summary
Abundant phytoplankton growth during extended summer daylight. Antarctic oceans are very productive because antarctic intermediate and bottom water sink, so nutrient-rich north atlantic deep water comes up to replace it. 500 mill tons of krill in southern ocean. One of the most abundant and successful species on earth. May be largest of any multicellular species. Rich in protein and fat important food source to many animals at top of food chain. Abundant amounts of phytoplankton during summer b/c sea ice melts feed krill; sea ice forms during winter no phytoplankton. Antifreeze glycoprotein in blood(enables them to live in cold water) and bodily fluids. Are larger in a cold climate b/c surface area to volume ratio is smaller, so less of skin is. Feed at sea using sonar and enhanced sight of their large eyes exposed.
