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Definition
Submerged Aquatic Vegetation |
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Term
Why are SAV's important? (4 reasons) |
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Definition
1)food source (geese, ducks, crabs) 2)provides habitat 3)protects bottom from erosion 4)provides O2 |
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Why are SAV's disapearing? |
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Definition
1)buried by sediment (construction, farming) 2)algae blocks sunlight (too much ferdilizer) 3)toxic chemicals |
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Definition
the young of any invertebrate animal |
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Definition
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Definition
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to cast or shed the feathers, skin, or the like, that will be replaced by a new growth. |
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Definition
any of the free-swimming larva of certain crustaceans, as the crab, having rudimentary legs and a spiny carapace. |
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What are zoea considered as? |
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Definition
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Definition
the larval stage of marine crabs immediately prior to and resembling the adult stage. |
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How many years do crabs live for? |
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Definition
crabs live for about three years. |
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Term
How many legs do crabs have? |
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Definition
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Term
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Definition
an external covering or integument, especially when hard, as the shells of crustaceans |
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Term
how many crabs are caught and eaten out of 4 leagle crabs each year? |
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Definition
3 out of 4 crab are caught and eaten each year. |
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Term
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Definition
juvenile attached oysters |
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Term
What is the legal size of oysters to eat? |
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Definition
three inchs is the legal size of oysters to eat . |
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Term
What is the one unique characteristic that oysters have? |
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Definition
they can change from female to male or male to female. |
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Term
How do oysters eat their food? |
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Definition
they suck water into their shell and filter out small plants called phytoplankton. |
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Term
A long time ago how long did it take for oysters to filter the bay? |
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Definition
it only took a few day for oysters to filter the bay. |
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Term
how long does it take for oysters to filter the bay today? |
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Definition
it takes three to four years for oysters to filter the bay. |
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Term
what are the two diseases that are killing oysters? |
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Definition
the two diseases that are killing oysters are dermo and MSX. |
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Term
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Definition
taking to many of one thing |
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Term
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Definition
it is depositing or covering oysters prime habitat. |
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Term
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Definition
organisms which passively drift with the current. |
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Term
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Definition
they are microscoic plants and are the most numerous plankton in the bay. |
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Term
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Definition
animals whose movement are controlled by tidal current. |
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Term
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Definition
any of a large group of usually tiny freshwater and saltwater crustaceans |
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Definition
the totality of interacting food chains in an ecological community |
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Definition
to suspend fishing for rockfish |
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Term
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Definition
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what is the rockfish's diet? |
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Definition
fish, soft crabs, and eel. |
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Term
Where do most juvenile fish live and why? |
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Definition
they live in shallow marshes and grass beds they live in them to hide from larger perdators and to feed on abundant foods supply. |
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Term
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Definition
the development of dark colors on parts usually exposed to the sun and of light colors on parts usually shaded, especially as serving for protection or concealment. |
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Term
why has rockfish pop. recovered? |
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Definition
the 5 year moratorium and repatation of spawning grounds. |
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Definition
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Term
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Definition
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Term
what are their predators? |
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Definition
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Term
what do humans use them for? |
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Definition
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Term
what is Omega Protein and what do they do? |
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Definition
company (Virginia) that catch and process menhaden. they catch 80% of them. |
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Term
What do diamondback terrepin eat? |
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Definition
Feed on clams, mussles, and fish. |
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Term
Where do diamondback terrepin live? |
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Definition
Only turtle that live in brackish water. |
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Term
True or False
Females are bigger than the male |
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Definition
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Term
How do you tell how old a turtle is? |
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Definition
Count the rings on the shell of the turtle. |
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Term
True or False
The colder the temp. the more felmales hatch. |
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Definition
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Why is the pop. of diamondback terrepin low? |
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Definition
Pop. is low because of turtle soup. |
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