PA Water Basins
Our water basin
What is the Ohio River Basin?
What is turbidity?
turbidity
Biological means this
What is living?
Why is Oil Creek named as such?
Oil was present in the water
A water basin is made of many of these
What are watersheds?
A high amount of this causes an overgrowth of algae and plants
What are nitrates?
When water temperature goes up
DO goes down
Name of the method we use to collect organisms in the stream
What is kick-netting?
Water Flow Chart for Oil Creek
What is Oil Creek --> Allegheny River --> Ohio River --> Mississippi River --> Gulf of Mexico
5 water basins in PA
What are the Delaware River, Ohio River, Great Lakes, Susquehanna River, Potomac River?
3 Ways that DO enters the stream
What are riffles, diffusion, photosynthesis
1 reasons why the knowledge of volume of flow may be useful
Answers may include: Can the stream be used for a hydroelectric dam; is the stream navigable; what species might live there?
Name of the group of organisms that we collect in the stream
What are macroinvertebrates?
3 things that stream order would indicate
What are volume of flow; position in the landscape; life forms; pollution levels; depth; width, velocity? (Other answers work)
Largest (land area) water basin in PA
What is the Susquehanna River Basin?
2 sources of high nitrates in a stream
What are chemical fertilizer and manure? (Leaky septic systems/malfunctioning sewage treatment plant work also)
Type of benthic zone where we do the biological sampling
What is rubble?
These organisms are flat and cling to the bottom of the rocks in riffle areas
What are water pennies?
1 cause of turbidity
erosion of soil from farming, construction, dirt roads, logging
This water basin provides drinking water to NYC
What is the Delaware River Basin?
A good level of this will help the stream recover from a spill of hydrochloric acid
What is alkalinity?
Describe the procedure to determine velocity of the stream
What is: measure a given distance (usually 5 m); drop a tennis ball and record the time it takes to travel that distance; repeat at specific intervals across the stream; calculate average?
These organisms build cases out of sticks or stones
What are caddisfly larvae?
3 parameters used to assess stream health
What are chemical, physical, and biological?