This data set contains four spreadsheets of data on plankton distributions in lower Lake Michigan between 1998 and 2000. Data were collected by a plankton survey system and are organized by geographic area: Racine, Wisc.; Chicago, Ill.; Gary, Ind.; and St. Joseph, Mich.
Lake Michigan Plankton Data Set
View the Data: Where_LkMI_Plankton_Live
Suggestions: Comparisons can be made among geographic areas and among size classes of zooplankton (Bin 1, 2, or 3).
Sample Inquiry Questions:
- Do surface zooplankton concentrations change with location or season? If so, do these differences relate to temperature? Chlorophyll? What about the concentrations at other depths?
- Examine the vertical distributions of zooplankton of different size classes. Do these patterns vary by season? By location?
- Do different size classes of zooplankton exhibit different patterns in vertical distribution? How do the different size classes of zooplankton affect biomass?
- Is vertical distribution of zooplankton related to temperature? Light? Chlorophyll?
- Does the abundance of the different size classes vary from month-to-month, year-to-year or place-to-place?
- Is there a relationship between water temperature and chlorophyll?
Note: For a question to be testable, the locality, time and variables must be specific.
- Lake Ecosystem May Crash, Science Daily, Charles Kerfoot