| Aquatic
Stream Habitats |
| Lesson Abstract |
| Summary: |
This lesson consists of both in class and on stream
site activities providing students with an opportunity to combine
their present knowledge of stream environments with first-hand observations
as an individual, team, or class. Students make connections between
their expanding knowledge of aquatic habitats and watershed conditions. |
| GLE: |
4.1.A.6, 4.1.B.6,4.1.D.6, 4.3.C.6, 5.3.A.6 |
| Show-Me |
Goal –1.1, 1.3, 2.1, 4.6 |
| Subject Areas: |
Science, Communication Arts, Fine Arts |
| Standards: |
Strands – SC 1, 2, 4, 5, 7, 8; CA 4, 6; FA 1 |
| Skills: |
Observation, record keeping, illustration |
| Duration: |
2 to 3 class periods (50 minutes) |
| Setting: |
Classroom and stream site |
| Key Vocabulary: |
Aquatic, macroinvertebrates, watershed, land use, riparian zone,
sediment, pool, riffle, root wad, erosion
|
Rationale:
- All wildlife is dependent on aquatic habitats for
their source of water.
- The quality of the water in an aquatic habitat partly
determines the types and abundance of both aquatic and terrestrial organisms.
- Wildlife is a vital component of outdoor recreation
and ecosystem stability.
- Wildlife is dependent on the quality of water the
same as humans are.
- The diversity of aquatic organisms living within
a stream channel reflect the overall health of a stream’s watershed
conditions and the riparian corridor adjacent to the stream.
- Aquatic organisms vary in their sensitivity to pollution
and disruptions in their aquatic ecosystems and adjacent riparian corridors.
- A close examination of a stream’s aquatic habitat
provides the observers with information regarding land use practices
and other human activities.
Student relevance:
- Students directly observe a stream’s aquatic
habitat.
- Students apply content knowledge directly to the
aquatic habitat chosen for the activity.
- Students make direct observations to speculate on
watershed conditions surrounding the given stream.
Learning Objectives:
Upon completion, students will be able to . . .
- Observe the physical conditions of the given area.
Record observations.
- Make connections between observations and aquatic
habitat conditions.
- Identify, compare, and contrast components of an
aquatic ecosystem, both natural and human.
- Identify, compare, and contrast components of an
aquatic ecosystem, both natural and human.
- Identify aquatic habitat components that function
as food, shelter, water, and space.
Students Need to Know:
- How to define, explain and identify plant and/or
animal habitats.
- How to identify wildlife.
- How to identify and describe human-made structures
in a stream channel.
- How to observe and record findings.
- The connection between aquatic life and the conditions
of a stream channel, riparian corridor, flood plain, and watershed.
Teachers Need to Know:
- General aquatic organisms in the area chosen for
the activity (if possible, contact a local or regional MDC aquatic specialist
to assist your activity.)
- The aquatic functions of pools, riffles, riparian
corridors, stream bottom materials, root wads, erosions, and general
fish feeding behaviors.
Resources:
The following materials area available from the Missouri
Department of Conservation, P.O. Box 180, Jefferson City, MO 65102-0180,
(573)751-4115.
Aquatic Field and Classroom Activities
Fishing for Answers: The Challenge of Conserving
Aquatic Resources, 1991
Fishing for Answers: Teacher’s Edition, 1991 (Under revision)
Missouri Fishes (poster with 18 species)
Life Within the Water, 1992
Missouri Crayfish
Water Plants for Missouri Ponds (Ask for pricing)
Sewall, Susan Beyer. Hooked on Science: Ready to Use
Discovery Activities for
Grades 4-8. Center for Applied Research in Education, 1990.
Materials Needed for Lesson:
Handouts
Aquatic Habitat Observations for Streams
Stream Insects & Crustaceans (Blue Bug Card)
Other Materials
Stream Team Macro Invertebrates ID card set (New)
Note cards or equivalent cut paper
Poster board or equivalent sized paper (one for every four students)
Markers
Notebooks with writing instruments
Color Pencils
Underwater view bottles (one for every two to three students)
Construction of bottles (see Hooked on Science by Susan B. Sewall):
- Cut the top portions off of clear two-liter plastic
soda bottles.
- Apply masking tape around the cut edges of the bottles
to prevent the plastic from cutting students.
Optional materials
Clipboards
Camera and film
Trash bags
Bottom dredges (buckets or cans with ropes tied on and holes on the
bottom)—see MDC publication Aquatic Field and Classroom Activities
(one for every three to four students)
Kick nets or seining nets (contact local or regional MDC office)
Procedure:
Part One: Circulating Current Knowledge (classroom activity)
- Provide each student with 3 to 5 note cards and a
marker.
- Ask students to write down (using marker) one term
or phrase on each card that reflects their knowledge of stream environments.
(This segment is done independently and silently.)
- Ask students to group their like cards with another
student, then ask them to team up with another pair and group their
cards.
- Repeat this process until all the cards from the
class are grouped together.
- Go over each group of cards with the class and make
connections, corrections, and clarifications as needed.
- Construct a concept map from the card piles (example:
water, fish, rocks, currents, bugs) showing the “current”
knowledge the class just “circulated” and “pooled.”
Sum up the concept map and explain to students that they are going to
visit a stream aquatic habitat and observe these components.
- Go over the handout Aquatic Habitat Observations
for Streams with students for the field trip activity.
- Introduce and model the procedure for using aquatic
wildlife sampling and observation equipment (underwater view bottles,
bottom dredges, kick nets, and/or seining nets).
- Instruct students on appropriate dress for the trip
(old clothes, shorts, river shoes, old tennis shoes, or rubber boots)
and provide permission slips.
Part Two: Stream Aquatic Habitat Observations (field
trip activity)
- Transport students and supplies to the site (if needed,
arrange for an MDC resource person, STREAM TEAM staff person or active
volunteer, or parent volunteers to attend).
- Go over safety precautions and appropriate conduct
before allowing students off the bus (require that all students stay
within a designated area at all times and not enter the stream without
permission).
- Instruct students to complete the Aquatic Habitat
Observations handout in pairs.
Combine pairs into teams of four and ask everyone to share and compare
their observations.
- Instruct students to add additional observations
of their new team members to their handouts.
- Call on each team to discuss their observations and
to note same, similar, and different observations.
- Tell students to add and clarify observations on
their own handout.
- Explain to the class that they have “circulated”
their “current” observations and discuss how these observations
differ from the activity conducted in class.
- Demonstrate how to use an underwater viewing bottle
(place the base of the
bottle in the water and look directly down into the top of the bottle).
- Provide one underwater viewing bottle to each team
of students.
- Allow students to observe shallow (knee high or less)
underwater environments.
- Ask students to record their observations on their
handout.
- Have students rotate to different areas of the stream
as time and appropriate conditions exist, note additional observations.
- Have students collect and identify water critters
with provided resources.
- Optional – Have a designated student or adult
take pictures of collected critters, the stream channel, the riparian
corridor, and other observations for extension activities in class at
a later date.
- Demonstrate how to use the bottom dredge by pulling
the dredge along the bottom of a shallow area to collect sediments and
organisms.
- Have each team use the dredge and observation and
record their collections.
- Demonstrate, use, and record observations from other
sampling devices.
- Sum up the class findings and collect materials before
returning to school.
- Ask students to note the land use practices that
they see in the watershed as they travel back to school.
- Optional – Pick up trash before leaving.
Part Three: Connecting Current Knowledge (classroom
activity)
- Ask students to read over their Aquatic Habitat
Observations handout that they completed in the field.
- Review the class’s combined observations through
questioning.
- Have each team reconstruct their direct observations
by drawing on poster board or large paper a picture of the entire habitat
they observed.
- At the bottom of their drawing have students write
a statement about the health of the aquatic habitat.
- Ask each team to share their posters with the rest
of the class.
- Ask students to draw, chart, or list the land use
activities from the trip. Have students include point and nonpoint sources
pollution.
- Ask teams to share their observations and inferences.
- During discussion, ask questions to make connections
between the aquatic habitat ecosystem health of surrounding land use
practices.
- Optional – Repeat this process for another
stream site with a significantly different health.
Evaluation Strategies:
- Have students keep a journal of their observations.
- Have students write a story, newspaper article, poem,
song, or skit about their findings.
- Have students create a concept map of their findings
which connects their current knowledge.
Extension Activities:
- Have students use a topographic map of the stream
site and outline the stream’s watershed.
- Have students make an inventory of the watershed
(use the STREAM TEAM Inventory Guide available on line).
www.mostreamteam.org
Have students repeat the lesson for areas in a stream that are above
and below a known point source pollution.
- Train students in biomonitoring of macroinvertebrates.
- Devise a set of interview questions for anglers.
Conduct the interviews and compile the results.
-
Compare and contrast the flowing
aquatic habitat to other freshwater aquatic habitats such as larger
rivers, ponds, lakes, and wetlands.
Suggested Scoring Guide:
Aquatic Stream Habitats
Teacher Name: ________________________________________
Student Name: ________________________________________
| CATEGORY |
4 |
3 |
2 |
1 |
| Contributions |
Routinely provides useful ideas when participating in
the group and in classroom discussion. A definite leader who contributes
a lot of effort. |
Usually provides useful ideas when participating in
the group and classroom discussion. A strong group member who tries
hard! |
Sometimes provides useful ideas when participating in
the group and in classroom discussion. A satisfactory group member
who does what is required. |
Rarely provides useful ideas when participating in the
group and in classroom discussion. May refuse to participate. |
| Focus on the task |
Consistently stays focused on the task and what needs
to be done. Very self-directed. |
Focuses on the task and what needs to be done most of
the time. Other group members can count on this person. |
Focuses on the task and what needs to be done some of
the time. Other group members must sometimes nag, prod, and remind
to keep this person on-task. |
Rarely focuses on the task and what needs to be done.
Lets others do the work. |
| Problem Solving |
Actively looks for and suggests solutions to problems.
|
Refines solutions suggested by others. |
Does not suggest or refine solutions, but is willing
to try out solutions suggested by others. |
Does not try to solve problems or help others solve
problems. Lets others do the work. |
| Monitors Group Effectiveness |
Routinely monitors the effectiveness of the group and
makes suggestions to make it more effective. |
Routinely monitors the effectiveness of the group and
works to make the group more effective. |
Occassionally monitors the effectiveness of the group
and works to make the group more effective. |
Rarely monitors the effectiveness of the group and does
not work to make it more effective. |
| Preparedness |
Brings needed materials to class and is always ready
to work. |
Almost always brings needed materials to class and is
ready to work. |
Almost always brings needed materials but sometimes
needs to settle down and get to work . |
Often forgets needed materials or is rarely ready to
get to work. |
| Working with Others |
Almost always listens to, shares with, and supports
the efforts of others. Tries to keep people working well together. |
Usually listens to, shares with, and supports the efforts
of others. Does not cause "waves" in the group. |
Often listens to, shares with, and supports the efforts
of others, but sometimes is not a good team member. |
Rarely listens to, shares with, and supports the efforts of others.
Often is not a good team player. |
Rubric Made Using: RubiStar (http://rubistar.4teachers.org)
Aquatic Habitat Observations for Streams
Directions: Make observations about the following items
located in or near the stream
environment. Record these observations in the provided areas. Use all
of your senses to make observations.
Riparian Corridor
| Land use - |
Vegetation - |
Wildlife signs – |
| Signs of human use - |
Ground cover - |
Soil – |
Stream Channel
| Bottom sediments - |
Erosion signs - |
Gravel bars –
(type & approximate sizes) |
| Channel width - |
Channel path - |
General depths – |
| Pools - |
Riffles - |
Currents – |
| Root wads - |
Logs - |
Boulders – |
| Fish feeding behaviors – |
|
|
Food, Water, Shelter, and Space
Identify each item above as either food, water, shelter,
or space for stream aquatic habitats. Use these symbols: food *, water
+, shelter ^, and space #. Note: Some items may serve more than one
function.
Underwater Viewing Bottle
Describe and illustrate what you observed (use any
provided resources for identification of organisms). Be as specific
as time permits.
Bottom Dredge
Describe and illustrate the living and nonliving times
that you dredged from the stream’s bottom (use any provided resources
for identification of organisms). Be as specific as time permits.
Other Sampling Devices
On the back of this sheet record observations from
other devices used in this activity.
|