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The Role of Detritivorous Fish in Supporting New Phosphorus and Primary Production in Reservoir Ecosystems

Laurich, Leah Marie
http://rave.ohiolink.edu/etdc/view?acc_num=miami1123009958

Abstract Details

2005, Master of Science, Miami University, Zoology.
I quantified new and recycled phosphorus supply and primary production rates in a eutrophic reservoir, and the rates at which gizzard shad provide new P by excreting sediment-derived P into the water column. New input was quantified by measuring known P inputs, P export and change in water column P mass. Net and gross sedimentation rates were quantified to estimate sediment and nutrient resuspension. New and regenerated production represented 40.5% and 59.5%, respectively, of total primary production. New inputs supplied enough P needed for 93% of total and 230% of new production. Gizzard shad supplied enough P to sustain 50% of total primary production and 111% of new production. Resuspension rates were 79.9% (suspended solids), -2.6% (N), 72.6% (P), and -6.8% (chlorophyll) of gross sedimentation rates. A substantial proportion of primary production was supplied by new nutrients, and nutrient excretion by detritivorous fish comprises almost half of new P supply.
Michael Vanni (Advisor)
38 p.
Biology, Limnology
new production; recycled production; detritivore; sedimentation; resuspension

Recommended Citations

Citations

  • Laurich, L. M. (2005). The Role of Detritivorous Fish in Supporting New Phosphorus and Primary Production in Reservoir Ecosystems [Master's thesis, Miami University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=miami1123009958

    APA Style (7th edition)

  • Laurich, Leah. The Role of Detritivorous Fish in Supporting New Phosphorus and Primary Production in Reservoir Ecosystems. 2005. Miami University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=miami1123009958.

    MLA Style (8th edition)

  • Laurich, Leah. "The Role of Detritivorous Fish in Supporting New Phosphorus and Primary Production in Reservoir Ecosystems." Master's thesis, Miami University, 2005. http://rave.ohiolink.edu/etdc/view?acc_num=miami1123009958

    Chicago Manual of Style (17th edition)

miami1123009958
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© 2005, all rights reserved.
This open access ETD is published by Miami University and OhioLINK.