Freshwater test 2

saturated zone

area of ground that is located below the water table

unsaturated zone

area above water table that water infiltrates through

water table

level betweeen saturated and unsaturated zone

percolation

water moving through soil, in a very slow process

hyporheic zone

area where ground water that is found directly below a stream or river, typically has high biodiversity of animals

watershed

terrestrial drainage area in which surface runoff flows into a stream at or above a given point

autochthonous production

energetic food web chain that rests in a foundation of photosynthesis within the ecosystem

allochthonous production

energetic food web chain that imports material to be the foundation of the food chain (leaves falling into headwater streams)

CaCO3, CO2

two forms of inorganic carbon

H2CO3

carbonic acid

HCO3

bicarbonate

CO3

carbonate

CO2

carbon type found in ph 0-8

bicarbonate

carbon type found in ph 4-12

carbonate

carbon type found in ph 8+

FeS2

pyrite

FeOH3

iron hydroxide

SO4+H

Sulfuric acid

oligotrophic 

lakes that have less than 10ppb phosphorus, medium production, clear water

mesotrophic 

lakes that have 10-50 ppb phosphorus, medium production

Eutrophic

lakes that have more than 50 ppb phosphorus, tend to be turbid and smelly

ecosystem subsides

one ecosystem giving energy to another, i.e., salmon move nutrients from downstream up upstream terrestrial systems

geological uplift

phase of phosphorus cycle where tectonic activity leads to phosphorus trapped under the ocean to become bedrock where it can be geologically weathered

67

number of mussel species in PA

mollusca

phylum that mussels are in