Numbering the Nassau Grouper:
A WebQuest for 6-8th Grade (Science)
Designed by Loris Chen (tworiversnj@aol.com)
 |
Epinephelus
striatus (photo by
Craig Dahlgren) |
Introduction
Task
Process
Evaluation
Conclusion
Credits
Teacher Page
Introduction
You are part of a team of specialists whose mission is
to determine the best way to rebuild the Nassau grouper
population. Your team has been invited to make a presentation
at an international conference where other teams will be
competing for project funding. Will your presentation
earn your project funding?
The Task
The population of Nassau groupers may be declining.
Old-timers fishing along the reefs of Belize recall a time
when thousands of Nassau groupers would spawn in giant columns
many meters deep. In 1991, dwindling numbers made the Nassau
grouper a candidate for the endangered species list in the
United States and it became protected in U.S. controlled
waters. However, Nassau grouper populations may be continuing
to decrease in prime spawning areas such as the reefs of
Belize. The Nassau grouper is economically important
to many fisheries operating in the Caribbean. The decreasing
population of Nassau groupers is of great concern to those
who rely on the fish for an income.
Your task is to:
- find out what has caused the decline in the Nassau
grouper population in Belize
- investigate methods for reversing the population trend
- present a proposal that will increase and sustain Nassau
grouper populations so that they do not become threatened,
endangered, or extinct
Your presentation must include graphics and visual organizers.
Presentations may be in the form of PowerPoint or overhead
projector transparencies.
The Process
Your team will:
- research the biology of the Nassau grouper
- research the geographic distribution of the Nassau
grouper
- research the human uses of the Nassau grouper
- research sustainable harvesting methods that have been
proposed by Green Reef
- develop a plan to study the effect of one sustainable
harvesting method
- create a presentation to secure funding for your study
Divide the tasks 1 though 4 among your group members so
that each person has one research task. Work
together to complete tasks 5 and 6.
Task 1. The Biology of Epinephelus striatus
The Question: Why is the population of Nassau
groupers so sensitive to current fishing practices?
Explore the spawning habits of the Nassau grouper at the
NOAA
Office of Protected Resources website.
Task 2. Geographic Distribution of Epinephelus
striatus
The Question: Where are Nassau groupers found?
Create a map showing the geographic distribution of these
two species by entering the species name at the OBIS
Portal. At the portal, enter the scientific name
of the Nassau grouper. Select "all databases."
When the database search is complete, select "map geographic
location." Once the map appears, you may change
its orientation by using the menu below the map.
To find the names of the location where these species have
been collected, use the scientific name search at Fishbase.
How does geography explain the occurrence of the species?
What geography related factors have influenced the population
of the Nassau grouper? Look for clues at Reef
Briefs.
Task 3. Human uses of Epinephelus striatus
The Question: What uses do humans have for
Nassau groupers?
To learn more about human uses of the Nassau grouper visit
the Green
Reef website. Learn more about the economic
importance of the Nassau grouper. How have fishing
practices affected the population? Are there other
factors that have placed stress on the Nassau grouper population?
Task 4. Sustainable Harvesting Methods
The Question: What are some possible sustainable
harvesting methods?
The harvesting of the Nassau grouper is economically important
to small-scale fisheries in the Caribbean. Learn more
about plans to rebuild grouper populations at NOAA
and Green
Reef.
Task 5. The Plan
Since you are a team of research scientists, your plan
will need the following parts:
- Research question- State in question that your
research project will answer.
- Background information- Provide information that
someone would need to know in order to understand your
plan. Be sure to cite sources of information.
This is the place to put information about seahorse biology,
geographic distribution, human uses of the Nassau grouper,
and sustainable harvesting methods.
- Hypothesis- A statement that describes the expected
outcome of your project
- Materials- What you will need to conduct
your research or implement your project and why these
are essential
- Procedure- List the steps you would take to
conduct your research
- Why your team thinks the plan will work- Link
this to Nassau grouper survival and sustainability of
the Nassau grouper populations. Show a cause and
effect relationship.
Task 6. The Presentation
Now it's time to sell your plan. There's only so
much money to go around. Will your presentation convince
the foundation to fund your plan? Your presentation
should include all the elements of your team's plan. Use
visual aids. These might include maps, pictures, charts,
tables, and/or an outline of key points. The presentation
may be done use a computer-based presentation program or
overhead transparencies.
Each person should be responsible for presenting at least
one part of the plan.
Evaluation
Your score for this project will be 40% based on your individual
research notes and 60% based on the group's plan and presentation.
| |
Beginning
1-10 |
Developing
11-20 |
Accomplished
21-30 |
Exemplary
31-40 |
Score |
Research Notes
(Maximum 40 points) |
Notes are cut and paste
copies from websites. |
Notes have some organization.
Notes reflect original writing. Notes may or may not
have source citations. |
Notes are organized.
Notes reflect original writing. Partial understanding
is apparent. Notes have source citations. |
Notes are organized as
questions and answers. Understanding is apparent.
Notes reflect original writing. Notes have source
citations. |
|
| |
Beginning
1-8 |
Developing
9-16 |
Accomplished
17-24 |
Exemplary
24-32 |
Score |
| The Plan
(Maximum 32 points) |
Plan is partially complete
or has a weak background section and/ or weak plan.
Poor use of factual information. |
Plan has all elements.
Explanation of why the plan will work is weak. Cause
and effect may not be clear. |
Plan has all the elements.
Elements have a logical flow. Some elements could
be stronger. Citations may be incomplete. |
Plan has all the elements.
Elements have a logical flow. Citations are included
and correct. Cause and effect is clear. |
|
| |
Beginning
1-7 |
Developing
8-14 |
Accomplished
15-21 |
Exemplary
22-28 |
Score |
| The Presentation
(Maximum 28 points) |
Presentation notes are
read. Graphics weakly support the speech. |
Presentation is complete,
but has some weaknesses. Graphics may support the
speaker, but may have some errors or lack of relevance. |
Presentation is complete.
Speakers demonstrate knowledge of the problem and
can clearly state the cause and effect relationship.
Graphics support the speaker. |
Speakers demonstrate
knowledge of the problem and an understanding of the
cause and effect to be studied. Graphics support the
speaker. The speaker sells the plan using good speech
techniques such as eye contact, vocal projection,
and enunciation. |
|
Conclusion
Conservation of a species is complicated by human needs
and wants for products that use those species. Sustainability
is the concept that current needs may be met without sacrificing
the ability of future generations to meet their needs.
What human needs or wants are met by the harvesting
of Nassau groupers? What where some of the economic
considerations that you needed to understand? What
where some of the cultural considerations that you needed
to understand? What actions can you personally take
to save the Nassau grouper? What actions could your
class take to save the Nassau grouper?
Although the Nassau grouper is protected in United States
controlled waters, it is not protected in Belize.
Find out what is being done in Belize to protect this and
other important reef species by visiting Green
Reef.
Credits & References
Nassau grouper photo by Craig Dahlgren from NOAA
at www.nurp.noaa.gov/Spotlight%20Articles/spawn.html.
Based on a template from The
WebQuest Page |