MSC 111 Lecture Notes - Lecture 10: Reynolds Number, Viscosity, Countercurrent Exchange

• School: University of Miami
• Department: Marine Science
• Course: MSC 111
• Professor: Peterson Larry

Document Summary

Photic zone: layer to which light penetrates (physics) Euphotic zone: where marine plants trap more energy than they use (biology) 40m in mid-latitude, few m in estuaries, 150m maximum in clearest ocean water (med. Ocean color: index of how many primary producers are present. When light comes into the ocean there are two primary fates: Becomes absorbed by plankton or other organisms. Small amount of scattered light goes back out of the ocean. Coastal waters appear green because plant pigments absorb the blue. Light falls off with depth; in an exponential matter and red wavelengths. Metabolic rate is rate at which energy-releasing reactions proceed within an organism. Ectotherms (cold-blooded) animals have internal temperature close to external temperature. Attain a larger size, and live longer. There is an optimal range for any particular environmental factor. Some species have broad tolerances and other have narrow. Endotherms (warm blooded) maintain almost constant internal temperature.