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Chesepeake Watershed #2
Cupcake woodward
32
Science
7th Grade
10/07/2013

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Cards

Term
What does SAV stand for
Definition
Submerged aquatic Vegitation
Term
Why are Savs so important
Definition
food source
Term
Why are Savs so important
Definition
habitat
Term
Why are Savs so important
Definition
traps sediment, protects floor from erosion
Term
Why are Savs so important
Definition
provides oxygen or O2
Term
Why are SAV's disappearing
Definition
sediment smothers and blocks sunlight/ too many nutrients (fertilizers + sewage treatment plants) cause algae bloom which blocks sunlight/ Chemicals
Term
What are juvenile attached false: called
Definition
spat
Term
True or False: Once a oyster is 2 1/2 inches long it can be legally caught and eaten
Definition
false
Term
What is one unique characteristic that is common to all oysters
Definition
they can change gender
Term
How do oysters eat?
Definition
By sucking water into their shells and filtering out small plants called phytoplankton
Term
Back then how long did it take for oysters to filter the Ch. Bay
Definition
Only a few days
Term
What percent of the historic population is remaining
Definition
Less than one percent
Term
What are the factors that have led to oysters demise
Definition
Overharvesting, MSX, and dermo, and Sedimentation
Term
What is Plankton
Definition
organisms which passively drift with the current
Term
What is phytoplankton
Definition
Single celled plants that are so plentyfu;
Term
What are Zooplankton
Definition
are animals whose movments are controlled by tidal currents
Term
True or False: Many Zooplankton are called copepods
Definition
True
Term
Phytoplankton and Zooplankton are at the end of
Definition
the Food wed
Term
What is another name for Striped Bass
Definition
Rockfish
Term
What do Striped Bass like to eat
Definition
Fish soft crabs and eels
Term
Where do Striped Bass live most of their lives
Definition
Saltwater of the ocean
Term
Where do juvenile Striped Bass live
Definition
Shallow marshes and grass beds
Term
What is counter shading
Definition
A system of camouflage
Term
What is a fishing moratorium
Definition
To recover a fishes population
Term
How do Menhaden eat
Definition
Filter Feeders
Term
What do Menhaden eat
Definition
Phyto Plankton, Algea
Term
What are Menhadens predators
Definition
rockfish, blue fish
Term
What do Humans use menhadens for
Definition
Crabs + fish bait, food Food for dog, pig, turkey and lipstick
Term
What is Omega Protein
Definition
Companys that process Menhaden
Term
What do Diamondback terripan eat
Definition
mussels, snails, claims, fish
Term
True or False the diamondback terripan is the only turtle in the world that lives in brakish water
Definition
True
Term
Do the rings on their shell
Definition
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