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23 Cards in this Set
- Front
- Back
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Alkalinity
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a measure of the amount of anions of weak acid in water and of the cations balanced against them.
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macroinvertebrates
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small, spineless creatures that are visible with the unaided eye; they include organisms such as crustaceans, mollusks, worms, and insects.
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pH
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a logarithmic scale ranging from 1 to 14 that identifies the acidity of a solution as the negative logarithm of the concentration of hydrogen ions in solution: pH = - log [H+]. Because the pH scale is logarithmic, each unit change represents a ten- fold change in the concentration of hydrogen ions.
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Sediment
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small pieces of organic or inorganic material that are deposited on Earth's surface by wind, water, or ice.
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Water Quality
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Determines the assessing three classes of attributes biological, physical, and chemical
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Biological Attributes
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refers to the number and types of organism that inhabit a waterway.
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Example of a macro-invertbrates
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worms
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Chemical attributes
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of water can affect aesthetic qualities such as how water looks, smells, and tastes.
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buffer
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something that chemically or physically dampens changes in a system; a protective barrier.
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buffering capacity
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the ability of a solution to resist or dampen changes in pH upon the addition of acids or bases.
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Nitrogen
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an essential nutrient that is required by all plants and animals for the formation of amino acids.
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Methemoglobinemia baby blue syndrome
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is a condition in which red blood cells are prevented from transporting oxygen throughout the body
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Phosphorus
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is a nutrient essential for the metabolic reactions of plants and animals.
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biochemical oxygen demand (BOD).
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The measure of the amount of oxygen used by aerobic bacteria during decomposition is called
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Fecal Coliform
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a bacteria that occurs in the digestive tracks of warm-blooded animals.
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What is the most basic physical attribute of a stream?
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the path along the stream in which it flows
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Where can you read elevation and catchment of an area?
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Planimeter
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Stream Order
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a measure of the relative size of streams
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What is the order of the Amazon River?
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twelfth Order water way
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Canopy Cover
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is the percentage of a sample area shaded by vegetation.
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Two things canopy cover provides?
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The canopy provides nutrient inputs through litter fall. It also provides shade that keeps the stream water cool. A large canopy cover may indicate a large amount of vegetation along the stream.
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Turbidity
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measures of water clarity.
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What does temperature affect?
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it affects the dissolved oxygen level in the water
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