ENVS 3150 Final: ENVS 3150 Final study notes (aquatic systems)
23 Oct 2016
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Ocean acidification (chemistry, biology (particularly corals, molluscs, algae, plankton), climate change implications (higher. The ocean is the main sink for atmospheric co2. Move of the atmosphere is from west to east (carries industrially made co2) to the atlantic. Co2 is more soluble in cold water. Organic carbon is incorporated into organic structures, while inorganic carbon is not part of organic structures but is often associated with them (carbonate shells) Two forms; doc (dom) and poc (pom) Doc is a critical component of most food webs, used by microbes (species: natural (humic acids) and synthetic (pesticides) Poc is in leaf fragments, fecal pellets, dead organisms. Oc is overly abundant, aquatic ecosystems can become enriched (such systems may or may not be eutrophic); in natural systems this occurs in bogs and depositional areas. In extreme cases, organic material can cause problems such as hypoxia/anoxia as organic material decomposes. Key forms of reactive ic include; co2, hco3 (bicarbonate), co3 (carbonate)
