Threats to Aquatic Ecosystems
Aquatic Wetlands
Properties of Water
Lentic/Lotic Ecosystems
Aquatic Ecology
100

This is the accumulation of toxins higher up in the food chain

Biomagnification

100

Soils that are saturated with water at least on a periodic basis

Hydric Soils

100

Water boils at this temperature

212 F/100 C

100

Lentic refers to what kind of water

Standing or still waters

100

This is the process of snow evaporating directly into water vapor

Sublimation

200

The Endangered Species Act was established this year

1973

200

These wetlands are characterized by spongy peat deposits and acidic waters

Bogs

200

Because water can dissolve many other substances, it is commonly reffered to as this

The Universal Solvent

200

This occurs when water stored in the soil during past rain events starts to seep downslope into streams

Baseflow

200

The aquatic equivalent of biomes are referred to as

Aquatic Life Zones

300

This poses the greatest threat to upland streams

Developement

300

All wetlands that are contained within a channel are classified as these

Riverine Wetlands

300

Water contains this many times less oxygen than air

30

300

The upper layer of warm water in a lake

Epilimnion

300

A rapid change in temperature cannot be tolerated by some organisms, this causes

Thermal Shock

400

This happens when there is a very high level of nutrients in rivers and streams as a result of human activity

Cultural Eutrophication

400

These are intertidal zones where the land meets the sea

Salt Marshes

400

A water molecule equally shares electrons, meaning that is

A Polar Molecule

400

A stream that doesn't have a channel at its upper reaches and near its soure

A First Order Stream

400

Generally, this is most limiting nutrient in freshwater ecosystems

Phosphorus

500

The assumption that everyone owns the ocean to use, but no one owns it by agreed boundaries 

Tragedy of the commons

500
These are depressions that are filled with rainwater for a part of the year

Vernal Pools

500

This starts to happen when water reaches 39 F/4 C

It starts to form crystals

500
These lakes were formed when ancient waterfalls scoured out deep pools

Plunge Pools

500
Carbon enters aquatic ecosystems from the atmosphere as a byproduct of what

Respiration