Invader Species of the Great Lakes
Students do a card-matching activity to learn about aquatic invasive species (AIS). In groups students select an aquatic invasive species, create a poster or factsheet and develop a charade-like game to demonstrate ways to prevent invasive species from spreading.
Objectives:
- name and visually recognize some invader (nonindigenous/ exotic) species of the Great Lakes
- understand and analyze the positive and negative impacts of invader species on the Great Lakes ecosystem
- explain the ways in which invader species are introduced into the Great Lakes
- describe and act out ways to avoid the spread of exotic species
Pour a Pond
Students pour pond water into hula hoops on shower curtains to create their own “pond.” They then work together using dichotomous keys to identify organisms.
Hydropoly: A Decision Making Game
Students play a board game to hone their decision-making skills. Through the various choices posed in the game, they are asked to consider both economic and environmental well being in making decisions.
Objectives:
- Discuss land-use practices that affect Great Lakes wetlands
- Make decisions and recognize personal priorities with regard to wetlands
- Describe some of the economic factors that often drive land use
Indoor Dunes
Students study Creature Cards at sand dune ecosystem stations and determine what adaptations help the organisms to live in their environments.
Objectives:
- List organisms that live in the dunes.
- Describe the specialized adaptations of sand dune organisms.
- Explain the different habitats in sand dunes.
Don’t Stop for Hitchhikers!
Students role-play the part of lake inhabitants and the aquatic exotics who displace the native species. Props are used to help demonstrate how aquatic exotic species enter a lake or river system, the negative effect they have on the native species, and things people can do to stop the spread of exotic species.
Students will be able to:
- Identify exotic species and ways they are transported.
- Learn about several exotics that affect water habitat.
- Identify the negative or positive effects of exotic species on native animals.
- Know how these exotics are transported and ways people can help to stop further spread.
Estuary Values and Changes
Activity A: What is the ecological role of an estuary?
In this investigation, students use various sets of data to examine some of the characteristics of the estuary at Old Woman Creek,near Huron, Ohio. Students learn about the methods used by ecologists to sample populations of plant and animal life in aquatic ecosystems, the living communities that are found in different depths of water in an estuary, and how plant communities are important to animal life in an estuary.
Activity B: How do estuaries impact nutrients entering a lake?
Students analyze a map and data to learn how estuaries affect nutrient levels as water enters a lake.
They make predictions about how the effects of climate change might affect an estuary’s ability to improve water quality and function properly.
External Curriculum Materials
Where Do All the Toxins Go? (Internal View)
When students have completed this activity, they will be able to demonstrate how chemicals accumulate in fish fat, the biopathways of the toxins in the fish’s body, and ways to prepare fish to avoid consuming the toxins.
External Curriculum Materials
What is the Ecological Role of an Estuary?
To most people, an estuary (es-chew-airy) is a place where fresh water meets the sea. In its broader meaning, an estuary is that part of the mouth of a stream in which the water level is influenced by the lake or sea into which the stream flows. The Great Lakes have some estuaries.
Old Woman Creek on Lake Erie has an estuary that has been set aside by the state and federal governments as a “state nature preserve” and “national estuarine research reserve.” The St. Louis River Estuary on Lake Superior is currently listed as an “Area of Concern”by the EPA and is undergoing remediation for pollution. Why should the government bother to preserve an estuary such as Old Woman Creek or the St. Louis River Estuary?
External Curriculum Materials
What Are the Characteristics of the Great Lakes Exotic Species?
This puzzle activity is designed to help students review facts and information about the characteristics of the Great Lakes exotic species. They also learn about origin and introduction methods.
Students will be able to match an exotic species with its characteristics, classification, origin, and introduction to the Great Lakes.
External Curriculum Materials
What are the Characteristics of Some Great Lakes Fish?
If you know how to construct a dichotomous key, you can make one that classifies real organisms, some fish in the Great Lakes. For this activity you will work in groups of 3 or 4. Your group will construct a key to identify some fish families and learn something about them.
Lake Erie has a larger variety of fish life than any other Great Lake. Scientists believer this is because of the southern position of the lake and because it is shallow. Lake Erie has 138 species of fish. These species can be grouped into 27 families. All of the fish in a given family share certain characteristics.In this exercise you will learn how to use these characteristics to identify the 27 families.
External Curriculum Materials
