A. List the stations where the mean number of first and second stage zoeae collected during each time period was: (list the stations next to the amount - it is not multiple choice)
0:
5 - 500:
>500:

B. What information from the data charts might help account for the differences in the abundance of zoeae among the stations you listed above?

C. List the stations where the mean number of megalopae collected during each time periods was:
0:
10 - 250:
>350:

D. What other data from the charts might help you account for the differences in the location of
megalopae?

E. What is notable about the data on zoeae from stages 3 - 7?

F. The data show that Stage 1 - 2 zoeae are present, as well as the more mature young crabs, the
megalopae. What explanations might there be for the absence of later stage zoeae in the Chesapeake Bay?

Analysis:
1. State where in the Chesapeake Bay each of the three stages of larval crabs are most likely to be found during different seasons.

2. Construct hypotheses which explain the location of larval crabs based on factors such as water chemistry, currents, season, etc.

Juvenile Stage:
Open the juvenile data page. Use the data from the 13 stations and the information page to answer the questions. Juvenile Data

A. List the stations where the mean number of juveniles (of both sexes) collected during each time period was:
<10 crabs
10 - 20 crabs
>20 crabs

B. What information from the data charts might help account for the differences in the abundance of juveniles among the stations you listed above?

Analysis:
By analyzing data collected from the thirteen field stations throughout the year, you should be able to:
1. State where in the Chesapeake Bay juvenile crabs are most likely to be found.

2. Construct a hypothesis which relates the location of juvenile crabs to a specific variable, such as sex, salinity, season, etc.

3. Construct a hypothesis which relates location of juvenile crabs to grassbed abundance.

Adult Stage:
Open the adult data page. Use the data from the 13 stations and the information page to answer the questions. Adult Female Data

A. List the stations where the mean number of mature females (disregarding sponge) collected during each time period was:
<10 crabs
10 - 20 crabs
>20 crabs

B. What other information from the data charts might help account for the differences in the abundance of mature females among the stations you listed above?

C. Group the stations according to sponge crab data: (list the stations next to group)
No sponge crabs
Orange sponge crabs
Black sponge crabs

D. What other data from the charts might help you account for the differences in the location of female crabs in various stages of egg development?

Analysis
By analyzing data collected from the thirteen field stations throughout the year, you should be able to:
1. State where in the Chesapeake Bay mature female crabs are most likely to be found during different seasons.

2. Construct a hypothesis which relates the location of mature female crabs to other factors, such as water chemistry, season, etc.

3. Construct a hypothesis which relates egg production to salinity.

Application:
If you were a crab fisherman in the Chesapeake bay area who wanted to both be successful and wanted to allow the crab population to continue to be healthy, explain how you would use this information to determine which seasons you would catch crabs, which seasons you would avoid, and which areas you would focus on.