Busy. Please wait.
Log in with Clever
or

show password
Forgot Password?

Don't have an account?  Sign up 
Sign up using Clever
or

Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.


Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.

water quality notes for regionals

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
        Help!  

Term
Definition
Edgewater   habitats may have emergent plants, sheltered overhangs with suspended root mats and leaf packs in quiet back eddies. The composition of macro-invertebrates will tend to differ from that in riffles  
🗑
Riffles   are shallow rocky sections of streams with fast flowing turbulent water. The rocks provide a variety of living places and a large surface area onto which macro-invertebrates can attach.  
🗑
acid   A solution that is a proton (H+) donor and has a pH less than 7 on a scale of 0-14.  
🗑
acidity   a measure of how acid a solution is- the lower the pH, the greater this is  
🗑
acid rain   Precipitation having a ph lower than the natural range of ~5.2 - 5.6; caused by sulfur and nitrogen derived from anthropogenic emissions.  
🗑
acidification   The process by which acids are added to a water body, causing a decrease in its buffering capacity (also referred to as alkalinity or acid neutralizing capacity), and ultimately a significant decrease in pH that may lead to the water body becoming acidic  
🗑
adhesion   The molecular force of attraction between unlike bodies that that acts to hold them together.  
🗑
algae   Simple single-celled, colonial, or multi-celled aquatic plants. They are mostly microscopic plants that contain chlorophyll and grow by photosynthesis, and lack roots and stems.They absorb nutrients  
🗑
alkalinity   Acid neutralizing or buffering capacity of water; a measure of the ability of water to resist changes in pH caused by the addition of acids or bases and therefore, the main indicator of susceptibility.  
🗑
anaerobic   Technically this means "without air" but in limnology it is used synonymously with "anoxic."  
🗑
angle of incidence   Angle between direction of motion of waves and a line perpendicular to surface the waves are striking.  
🗑
angle of reflection   Angle between direction of motion of waves and a line perpendicular to surface the waves are reflected from.  
🗑
anions   Negatively charged ions.  
🗑
anoxia   Condition of being without dissolved oxygen (O2).  
🗑
anoxic   Completely lacking in oxygen.  
🗑
anthropogenic   Human caused.  
🗑
aquatic respiration   Refers to the use of oxygen in an aquatic system including the decomposition of organic matter and the use of oxygen by fish, algae, zooplankton, aquatic macrophytes, and microorganisms for metabolism.  
🗑
atmospheric pressure   Measure of the pressure of the earth's atmosphere per unit area. It is 760 mm Hg at sea level and decreases with increasing elevation.  
🗑
attenuation   Decrease  
🗑
aufwuchs   The community of algae and other microorganisms that attach to surfaces such as rocks, twigs, and aquatic plants; essentially the same as "periphyton" that means "attached algae."  
🗑
base   A substance which accepts protons (H+) and has a pH greater than 7 on a scale of 0-14; also referred to as an alkaline substance.  
🗑
basin   Geographic land area draining into a lake or river; also referred to as drainage basin or watershed.  
🗑
benthic   Refers to being on the bottom of a lake.  
🗑
benthic zone   Lake bottom sediment.  
🗑
biocarbonate   The anion HCO3-.  
🗑
bioavailable   Able to be assimilated (absorbed) by organisms.  
🗑
biochemical oxygen demand   Sometimes referred to as Biological Oxygen Demand (BOD). A measure of the amount of oxygen removed (respired) from aquatic environments by aerobic microorganisms either in the water column or in the sediments.  
🗑
biomanipulation   Reducing algal blooms by altering the fish community to reduce predation on certain zooplankton (cladocerans such as daphnia) that can most efficiently graze on algae.  
🗑
biomass   The weight of a living organism or assemblage of organisms.  
🗑
biotic   Referring to a live organism  
🗑
buffer   A substance which tends to keep pH levels fairly constant when acids or bases are added.  
🗑
buffering capacity   Ability of a solution to resist changes in ph when acids or bases are added mostly due to dissolved carbonate rocks in the basin; equivalent to acid neutralizing capacity (anc).  
🗑


   

Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
 
To hide a column, click on the column name.
 
To hide the entire table, click on the "Hide All" button.
 
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
 
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.

 
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how
Created by: Xox142
Popular Science sets