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chesapeke bay watershed 2
new stuff
42
Science
7th Grade
10/07/2013

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Cards

Term
what is an sav
Definition
submerged aquatic vegitation
Term
why are 4 reasons sav is important
Definition
ritch scorce of food....habitat....hiding place....stabilize the bay bottom...provide oxygin
Term
why are the savs dissapering
Definition
sediment washes into the bay and smoshes the savs polutants wash into the bay and kill them
Term
larva
Definition
tiny baby fish
Term
sooks
Definition
females
Term
jimmies
Definition
males
Term
molts
Definition
sheds its shell
Term
zoea
Definition
small larval crabs
Term
crabs lifespan?
Definition
3 years
Term
how many legs crabs have
Definition
10
Term
exoskeleton
Definition
shell, coat of armor
Term
3/4 crabs are caught every year
Definition
Term
megalops
Definition
second larval form
Term
juvinile oysters
Definition
spat
Term
how big are oysters
Definition
3 inches
Term
oysters can change gender
Definition
true
Term
oysters eat by filter feeding
Definition
true
Term
oysters once could filter the whole bay in few days
Definition
true
Term
now tnhe sucking of the whole bay takes
Definition
4 years
Term
msx and dermo
Definition
oyser desesies
Term
plankton
Definition
orginisims that passavely float with current
Term
photo plankton
Definition
microscopic plants
Term
zoo plankton
Definition
drift with current also known as copepods
Term
copepods
Definition
never grow bigger than a tip of a pensil
Term
food web
Definition
smaller fish get eatin by biger fish and then they get eaton by bigga fish that get eaton by bigger fish and the prosses goes on
Term
rockfish or striped bass
Definition
Term
fishing mortoriam
Definition
ban for fishn for rockfish
Term
what striped bass eat
Definition
fish, soft crabs, eel
Term
where do rockfish spend mot of there lives
Definition
saltwater
Term
where do juvinile rockfish live
Definition
high grass, shallow water
Term
countershading
Definition
type of camoflase except cant change color use there dark top and light bottom
Term
why have rockfish recovered
Definition
5 year mortoriom
resporation of spawning grounds
Term
what do menhaden eat
Definition
they filter-feed
Term
what do menhaidian eat
Definition
photoplankton, algie
Term
what r menhadians predators
Definition
bigger fish, crustations, human
Term
what is omega protine
Definition
only reduction company left to catch manhidian
Term
what do black terripans feed on
Definition
worms, fish, mussles, clams
Term
what is the only turdle that lives in brackish water
Definition
black terripan
Term
females are larger than males in what seiesies
Definition
blackdimond terripan
Term
u can tell age by rings on black terripans sahell
Definition
Term
warmer the temprature the more females hatch
Definition
black terripan
Term
endangered years ago because turdle soup
Definition
blackdimond terripan
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