BIOL 360 Lecture Notes - Lecture 15: Biogeochemical Cycle, Limnology, Autotroph
Document Summary
Oceonograhy- study of marine systems and the biological, physical, geological, and chemical factors that impact biogeochemical cycling water circulation and climate. Limnology- investigation of aquatic systems within continental boundaries including glaciers . Water as microbial habitat- physical factors: do content, temp, ph light penetration. Two gases of major importance to microorganisms: oxygen and carbon dioxide. Co2 and ocean buffering system: use of co2 bu autotrophic microbes increases the ph of water. Oceans are buffered by the carbonate equilibrim system at about ph of 8 increasesd co2 and effect sof organisms: missing a few bullet ppints. Microbes in freshwater environents: vast majority of earth is marine environment, missing. Microorgnisms in streams and rivers: get, notes. Nutrient sources for microorganisms in streams and rivers: autochonos (in stream production based on photosynthetic organisms, allocthonous (source is outside stream)- runoff from urban industrial or agricultural sites.
