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Chesapeke bay watershed 2
Jeremiah Williams
52
Science
7th Grade
10/07/2013

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Cards

Term
what does sav stand for
Definition
Suberged Aquatic vegition
Term
why are sav so important
Definition
1. food source geese, ducks, crabs 2. habitat small fish, molting crabs 3. stabalize bay bottom/ filters traps sediment 4. provide o2
Term
why are sav disappering
Definition
1. sediment erosion clouds water no light 2 to much algae from fertilerzer cloudy water 3. toxic chemicials acid rain roundup kill
Term
How do crabs begin their lives
Definition
as larvae
Term
sook
Definition
female crab
Term
jimmies
Definition
male crab
Term
What is it called when a crab sheds its shell
Definition
molting
Term
Stage 1 of blue crab
Definition
zoea
Term
Stage 2 of crab
Definition
megalopa
Term
when the eggs hatch small larval crabs called
Definition
zoea are released
Term
Atlantic blue crabs have
Definition
ten legs
Term
The second and third and fourth pairs of legs behind the front claws are used
Definition
for walking along the bottom of the bay
Term
It is estimated that three out of every four legal sized blue carb
Definition
in ch peake bay are caught and eaten each year.
Term
Juvenile attached oysters are called
Definition
spat
Term
oysters species is their ability to change
Definition
gender
Term
oysters eat
Definition
by sucking water into their shells and filtering out small plants called phytoplankton.
Term
oysters were once abudant
Definition
that they filtered the entire water volume.
Term
on percent of the historic population remaining
Definition
that the same takes 3 to four years
Term
plankton are defined
Definition
as organisms which passively drift with the current
Term
microscopic plants called
Definition
phytoplankton are by far the most numerous plankton in the bay
Term
many zooplankton are
Definition
copepods which never grow to be bigger than the tip of a pencil
Term
crabs begin their lives as
Definition
zooplankton
Term
interconnected system is known as the
Definition
food web
Term
another name for rockfish is
Definition
striped bass
Term
rockfish live much of their lives in the
Definition
saltwater of the ocean
Term
juvenile fish
Definition
begin their lives in shallow marshes and grass beds
Term
How do menhaden eat?
Definition
they filter feed
Term
What do they eat?
Definition
phytoplankton
Term
WHAT are their predators
Definition
striped bass
Term
Wat do humans us them for
Definition
dog food
Term
What is Omega protein and what do they do?
Definition
they are a company and they make all different types of products
Term
feed
Definition
clams mussels fish mollusks
Term
females
Definition
bigger than males
Term
can tell age by rings
Definition
on shell
Term
temprature
Definition
affects gender of off spring
Term
only turtles live on
Definition
brackish water
Term
define exosskeloton
Definition
hard cover with pointy ends
Term
true or false an oyster can filter and entire water volume of the cheaspeake bay in few days
Definition
true
Term
what do mature striped bass eat
Definition
fish, soft crabs and eels
Term
true or false they used to be used in soup
Definition
true
Term
what is omega protein and what do they do
Definition
company that process mehaden
Term
true or false an oyster can filter and entire water volume of the cheaspeake bay in few days
Definition
true
Term
what do mature striped bass eat
Definition
fish soft crabs and eels
Term
true or false they used to be used in soup
Definition
true
Term
what is omega protein and what do they do
Definition
company that process mehaden
Term
True or false The legal size for oysters is 5 inches
Definition
False
Term
SAV provide carbon dioxide to the water
Definition
False
Term
The life span of a crab is 5 years
Definition
False
Term
What percent of the earth's water is freshwater
Definition
3 percent
Term
Plankton are important because
Definition
they produce food to large animals and produces most of the earth's oxygen
Term
Seaweed is example of
Definition
Sav
Term
baby oyster
Definition
spat
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