dissolved organic matter
minute organic matter

Dictionary of ichthyology. 2009.

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  • Colored dissolved organic matter — (CDOM) is the optically measurable component of the dissolved organic matter in water. Also known as chromophoric dissolved organic matter, yellow substance, and gelbstoff, CDOM occurs naturally in aquatic environments primarily as a result of… …   Wikipedia

  • Dissolved organic carbon — (DOC) is a broad classification for organic molecules of varied origin and composition within aquatic systems. The dissolved fraction of organic carbon is an operational classification. Many researchers use the term dissolved for compounds below… …   Wikipedia

  • Organic light-emitting diode — Demonstration of a flexible OLED device A green emitting OLED device An …   Wikipedia

  • Total organic carbon — (TOC) is the amount of carbon bound in an organic compound and is often used as a non specific indicator of water quality or cleanliness of pharmaceutical manufacturing equipment. A typical analysis for TOC measures both the total carbon present… …   Wikipedia

  • total dissolved solids — a measure of water quality, the total residue remaining after evaporation of a water sample filtered to remove suspended matter larger than 1.0 mm; inorganic salts (principally calcium, magnesium, potassium, sodium, bicarbonates, chlorides and… …   Dictionary of ichthyology

  • Total dissolved solids — (often abbreviated TDS) is an expression for the combined content of all inorganic and organic substances contained in a liquid which are present in a molecular, ionized or micro granular (colloidal sol) suspended form. Generally the operational… …   Wikipedia

  • Winkler test for dissolved oxygen — The Winkler test is used to determine the level of dissolved oxygen in water samples. This metric is then used to estimate the biological activity in the water sample. An excess of Manganese(II) salt, iodide (I ) and hydroxide (OH ) ions are… …   Wikipedia

  • Microbial loop — The microbial loop describes a trophic pathway in the marine microbial food web where dissolved organic carbon (DOC) is returned to higher trophic levels via the incorporation into bacterial biomass, and coupled with the classic food chain formed …   Wikipedia

  • Constructed wetland — Vertical Flow type of Constructed Wetlands A constructed wetland or wetpark is an artificial wetland, marsh or swamp created as a new or restored habitat for native and migratory wildlife, for anthropogenic discharge such as wastewater,… …   Wikipedia

  • Nutrient cycle — …   Wikipedia

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