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Cheseapeke bay water shed 2
Archer
44
Science
7th Grade
10/07/2013

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Cards

Term
What does SAV stand for?
Definition
Submerged aquatic vegetation.
Term
Why are SAV important?
Definition
food sources
habitat
traps sediment, protects floor from erosion
Provides o2
Term
why are SAV disappearing?
Definition
sediment smothus + blocks sunlight
Nutrients algea bloom-> blocks sunlight
chemicals kills it
Term
larvae
Definition
beginning of a crabs life
Term
sook
Definition
another name for a female
Term
jimmies
Definition
another name for males
Term
molts
Definition
losing their shell in order to grow
Term
zoea
Definition
first stage of their life
Term
megalops
Definition
second stage of their life
Term
Zooplankton
Definition
another name for zoea
Term
how long do crabs live?
Definition
12 to 16 mounths
Term
how many legs do crabs have?
Definition
10
Term
Define exoskeleton
Definition
hard cover with pointy ends
Term
True or false Three out of four legal sized blue crabs from the Chesaepeke bay are eaten each year
Definition
True
Term
what are juvenile oysters called?
Definition
Spat
Term
how long does a oyster have to be able to be caught?
Definition
three inches long
Term
what gender is an oyster?
Definition
both
Term
how does an oyster eat?
Definition
it eats by filtering the water throw their shell
Term
true or false? an oyster can filter an entire water volume of the chesapeke bay in a few days.
Definition
true
Term
how has the population effected this process?
Definition
there are less oysters causing a slower process
Term
what have led to oysters Demise?
Definition
Overharvesting, msx and Dermo, sediment build up
Term
what are plankton?
Definition
organisms that drift with the current.
Term
what are Phytoplankton?
Definition
microscopic organisms that are by far the numerios in the bay
Term
what are zooplankton?
Definition
they are animals that drift with the current and many are Copepods
Term
What are Copepods?
Definition
They are a type of Zooplankton that never grows bigger then a pencil tip
Term
what is a food web?
Definition
it is an Interconnected system of what animals eat
Term
what is another name for rockfish
Definition
striped bass
Term
what is Moratorium
Definition
ban on something
Term
what do mature striped bass eat?
Definition
fish, soft crabs, and eels
Term
where do mature rockfish hang out
Definition
salt water oceans
Term
where do juvenile rock fish live?
Definition
in shallow marshes
Term
what is countershading
Definition
camouflage
Term
why have rockfish made a great recovery
Definition
15y moratorium restored spawning grounds
Term
how do menhaden eat?
Definition
filter feeders
Term
what do Menhaden eat?
Definition
Phytoplankton
Term
what are their predators?
Definition
rockfish, blue fish
Term
what do humans use menhaden for?
Definition
crab + fish bait, oil, fertilizers, animal food
Term
what is Omega Protein and what do they do?
Definition
company of that processes Menhaden
Term
What do diamond back terripan eat
Definition
Mussels, snails, fish
Term
True or false it is the only turtle in the world to live in brackish water,
Definition
True
Term
What defines a diamond back terripans age?
Definition
The rings on the shell
Term
What gender is bigger
Definition
Female
Term
True or false they used to be used in soup
Definition
True
Term
What determines the turtles gender
Definition
Temperature
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