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knipp - chesapeake bay #1
chesapeake bay - two weeks
53
Environmental Studies
7th Grade
03/31/2010

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Term
tributary
Definition
a stream or river that empties into a larger body of water
Term
estuary
Definition
a body of water where fresh and saltwater mix
Term
impervious surface
Definition
doesn't allow any water to pass through
Term
sidewalk, parking lot, street
Definition
examples of impervious surfaces
Term
New York, Maryland, Pennsylvania, Delaware, Virginia, West Virginia
Definition
states that contain Chesapeake Bay watershed
Term
64,000 square miles
Definition
size of Ch. Bay watershed
Term
(1) traps sediment and pollutants
(2) allows storm water to seep into the ground
Definition
purpose of retention or sediment pond
Term
SAV
Definition
submerged aquatic vegetation
Term
run-off
Definition
water that doesn't sink into the ground
Term
storm water
Definition
water captured by storm drains
Term
200 miles
Definition
length of Ch. Bay
Term
Patapsco River
Definition
Baltimore City is found on this river
Term
Potomac River
Definition
Washington, D.C. is found on this river
Term
Susquehanna River
Definition
main tributary of Ch.Bay
Term
21 feet
Definition
average depth of Ch. Bay
Term
oysters, mussels, clams
Definition
shellfish found in the Ch. Bay
Term
bluefish, striped bass, menhaden, perch (white and yellow), Amer.shad
Definition
fish found in the Ch. Bay
Term
sook
Definition
female crab
Term
jimmy
Definition
male crab
Term
spat
Definition
baby oyster
Term
striped bass
Definition
official name for rockfish
Term
plankton
Definition
small, aquatic life that floats with currrents
Term
phytoplankton
Definition
algae is an example
Term
zooplankton
Definition
eat phytoplankton
Term
nitrogen and phosphorus
Definition
main pollutants found in fertilizer
Term
sludge layer
Definition
bottom layer of septic system
Term
copepods
Definition
plankton found in our pond water
Term
algal blooms
Definition
large population explosions of phytoplankton
Term
contour line
Definition
line connecting points of equal elevation
Term
filter feeder
Definition
how oysters, clams and mussels feed
Term
drain field
Definition
where sewage water goes after it leaves a septic tank
Term
moratorium
Definition
a ban on hunting or fishing
Term
osprey & bald eagle
Definition
birds found at the top of the food chain on the Bay
Term
spawn
Definition
breeding of fish
Term
keystone species
Definition
a species that is critical to an ecosystem
Term
Connewingo Dam
Definition
dam found near the mouth of the Susquehanna River
Term
Susquehanna River
Definition
provides 40% of the freshwater of the Bay
Term
city found near the mouth of the Bay
Definition
Norfolk
Term
Delmarva peninsula
Definition
peninsula that includes the Eastern Shore
Term
James River
Definition
southern most river of the Bay
Term
C & D canal
Definition
connects the Bay with the Delaware River
Term
Severn River
Definition
river where you find Annapolis
Term
3 years
Definition
life span of a blue crab
Term
1%
Definition
current oyster population is this percent of historic
Term
salinity
Definition
the percent of salt in water
Term
ppt (parts per thousand)
Definition
units for salinity
Term
0 ppt - 30 ppt
Definition
range of salinity in the Bay
Term
DDT
Definition
banned pesticide that made bird egg shells weak
Term
bioaccumulation
Definition
where chemicals become more concentrated as they move along the food chain
Term
detritus
Definition
dead organic matter (i.e. - leaves, sticks, etc.)
Term
omnivore
Definition
eats plants and animals
Term
carnivore
Definition
eats animals
Term
herbivore
Definition
eats plants
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