ISCI 1001 Lecture Notes - Lecture 19: Halocline, Pycnocline, Bromine
19 Nov 2015
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Solar ponds (made by people): *diagram in lecture slide* Brine (h2o saturated w/ salt: more dense than freshwater. Saline (salty) salinity (33-37 parts per thousand) 2 factors that mainly affect vertical structure: temperature, salinity. Halo -> halogen (type of chemical) chlorine, fluorine, bromine, iodine. *diagram in lecture slide: surface layer (mixing) Warm, surface, wind currents: thermocline (t) Upwelling (upward flow of deep water toward surface) Global oceanic circulation system upwelling and downwelling. *diagram in lecture slide: north atlantic deep water nadw. Release of bits of plastic: maybe some chemical release, microorganisms take up chemicals (bioaccumulation, bigger organism (biomagnification) Organisms think small plastic bits are food: eat them, starve. 2048 population of all ocean species being fished today will collapse. Industrialized fishing: hugh fishing vessels, track fish, process fish on board, new fishing techniques. *diagram in lecture slide: driftnets, floats, weights. Bottom benthic fish/other organisms: can destroy sea bed. Other organism that are caught that you don"t want.
