Top-down Trophic Cascades in Three Meromictic Lakes
2010-03-11
Loading...
View/Download File
Persistent link to this item
Statistics
View StatisticsJournal Title
Journal ISSN
Volume Title
Title
Top-down Trophic Cascades in Three Meromictic Lakes
Published Date
2010-03-11
Publisher
Type
Scholarly Text or Essay
Abstract
Projections of tropic cascades from a top-down model suggest that biotic characteristics of a lake can be predicted by the presence of planktivorous fish. From the same perspective, the presence of planktivorous fish can theoretically be predicted based off of the sampled biotic factors. Under such theory, the presence of planktivorous fish contributes to low zooplankton abundances, increased zooplankton predator-avoidance techniques, and subsequent growth increases of algae. Lakes without planktivorous fish would theoretically experience zooplankton population booms and subsequent decreased
algae growth. These assumptions were used to describe the tropic interactions of Arco,
Deming, and Josephine Lakes; three relatively similar meromictic lakes differing
primarily from their absence or presence of planktivorous fish. Due to the presence of
several other physical, chemical, and environmental factors that were not sampled, these assumptions did not adequately predict the relative abundances of zooplankton and algae in a lake based solely on the fish status. However, the theory did successfully predict the depth preferences of zooplankton based on the presence or absence of fish.
Keywords
Description
Student paper, BIOL 3807, 2008
Related to
Replaces
License
Collections
Series/Report Number
Funding information
Isbn identifier
Doi identifier
Previously Published Citation
Suggested citation
Kraft, Tanner; Newman, Caitlin; Smith, Michael; Spohr, Bill. (2010). Top-down Trophic Cascades in Three Meromictic Lakes. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/59218.
Content distributed via the University Digital Conservancy may be subject to additional license and use restrictions applied by the depositor. By using these files, users agree to the Terms of Use. Materials in the UDC may contain content that is disturbing and/or harmful. For more information, please see our statement on harmful content in digital repositories.