MARS 1010 Notes Exam 4

MARS 1010 Notes Exam 4 - MARS 1010 Notes EUTROPH ICAT ION I...

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MARS 1010 Notes EUTROPHICATION I. Definition: the problem of over dose of nutrients to living organisms II. The Healthy Cycle of living organisms a. The Carbon Cycle i. Photosynthesis: CO2+H2O CH2O (sugar) + O2 ii. Respiration: CH2O + O2 CO2 + H2O iii. Surface production sinks below surface (where there is less light) iv. Respiration of sinking organic matter uses oxygen v. Biological Pump: the sum of a suit of biologically- mediated processes that transport carbon from the surface euphotic zone to the ocean’s interior III. Eutrophication a. Increased loading of nutrients will increase: i. Productivity ii. Sedimentation of organic matter iii. Bacterial respiration iv. Reduction of dissolved oxygen b. Overabundance of carbon and lock of oxygen c. Phytoplankton increase in number d. Zooplankton die and sink to the bottom e. Inorganic nutrients added to the system f. Bacteria decompose the zooplankton and use up oxygen g. Hypoxic or anoxic conditions are produced IV. The Eutrophication Process a. Fresh water comes into ocean from rivers causing freshwater to lay on top of saltwater
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MARS 1010 Notes Exam 4 - MARS 1010 Notes EUTROPH ICAT ION I...

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