WorksheetsCrabs & Oysters
Total questions: 20
Worksheet time: 10mins
Name
Class
Date
1.
What is a male blue crab called?
a)
Jimmy
b)
Johnny
c)
Bull
d)
Buck
2.
What is a female crab with a visible egg mass called?
a)
Suzie
b)
She Crab
c)
Sook
d)
Sponge
3.
What does the male crab's apron look like?
a)
Statue of Liberty
b)
Washington Monument
c)
Eiffel Tower
d)
Space Needle
4.
Out of 1-2 million eggs, how many will survive to maturity?
a)
1-2
b)
10-20
c)
100-200
d)
1000-2000
5.
How big does a male crab have to be in order to keep it?
a)
1 inch
b)
2 inches
c)
3 inches
d)
5 inches
6.
What does the mature female crab's apron look like?
a)
St. Louis Arch
b)
Capital Building
c)
Volcano
d)
Mt. Everest
7.
How many legs does a crab have?
a)
6
b)
8
c)
10
d)
12
8.
How many times will a female crab molt before she is sexually mature?
a)
2
b)
12
c)
21-22
d)
Forever
9.
How many times does the male blue crab molt?
a)
2
b)
12
c)
21-22
d)
Forever
10.
What does callinectus sapidus mean?
a)
Great Shellfish
b)
Beautiful Swimmer
c)
Chesapeake Gold
d)
Yummy
11.
What is a baby oyster called?
a)
calf
b)
spat
c)
fry
d)
pup
12.
Why did the oyster population, in the Chesapeake Bay, initially decline?
a)
diseases
b)
overfishing
c)
loss of habitat
d)
poaching
13.
How do waterman catch oysters in the Chesapeake Bay?
a)
pots
b)
nets
c)
dredge
d)
by hand
14.
More recently, what is leading to the decline and consistent low number of oysters in the Chesapeake Bay?
a)
disease
b)
overfishing
c)
poaching
d)
pollution
15.
How much water can an adult oyster filter per day?
a)
1 gallon
b)
25 gallons
c)
50 gallons
d)
100 gallons
16.
Why do oysters have to live on reefs?
a)
for mating
b)
for feeding
c)
for mobility
d)
for communicating
17.
Why do oysters have to live on reefs?
a)
for protection
b)
for feeding
c)
for mobility
d)
for communication
18.
What percentage of oyster are in the bay today as compared to John's Smith's time?
a)
1%
b)
25%
c)
50%
d)
99%
19.
What triggers oyster reproduction?
a)
position of the sun?
b)
water temperature
c)
time of day
d)
tides
20.
What is the MAIN ecological function of oysters?
a)
food
b)
economic value
c)
aesthetics
d)
filter
100 %
