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The distribution and ecology of the freshwater molluscs of northern British ColumbiaLee, Jacqueline S. January 2000 (has links) (PDF)
Thesis (M.S.)--University of Northern British Columbia, 2000. / Includes bibliographical references (leaves 99-105).
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The effects of irrigation water withdrawals on macroinvertebrate community structure and life history strategies /Miller, Scott W. January 1900 (has links)
Thesis (Ph. D.)--Oregon State University, 2008. / Printout. Includes bibliographical references (leaves 100-108). Also available on the World Wide Web.
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A geographical framework for assessing longitudinal patterns in stream habitat and fish distribution /Torgersen, Christian E. January 2002 (has links)
Thesis (Ph. D.)--Oregon State University, 2002. / Typescript (photocopy). Includes bibliographical references. Also available online.
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The conservation value of artificial ponds in the Western Cape Province for aquatic beetles and bugs /Apinda-Legnouo, Emelie Arlette. January 2007 (has links)
Thesis (MSc)--University of Stellenbosch, 2007. / Bibliography. Also available via the Internet.
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Biodiversity and longitudinal distribution of fungi on submerged wood, with reference to human disturbance /Tsui, Kin-ming. January 1999 (has links)
Thesis (Ph. D.)--University of Hong Kong, 2000. / Includes bibliographical references.
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Primary productivity by phytoplankton : temporal, spatial and tidal variability in two North Carolina tidal creeks /Johnson, Virginia L. January 2005 (has links) (PDF)
Thesis (M.S.)--University of North Carolina at Wilmington, 2005. / Includes bibliographical references (leaves: [69]-73)
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Macrophytes as fish habitat : the role of macrophyte morphology and bed complexity in fish species distributions /Carden, Kerilynn M. January 2002 (has links) (PDF)
Thesis (M.S)--University of Wisconsin--Stevens Point, 2002. / Includes bibliographical references (leaves 102-110).
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Propagation for the conservation and applied use of freshwater musselsBarclay, Holly January 2012 (has links)
No description available.
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Heterotrophy in lake planktonDel Giorgio, Paul A. January 1993 (has links)
The overall aim of this thesis was to determine the relative importance of heterotrophy and autotrophy in lake plankton. Empirical analyses using extensive surveys of literature data revealed three specific patterns in metabolism and biomass structure in freshwater plankton. First, the ratio of phytoplankton production to plankton respiration (P/R ratio) tends to be low in unproductive lakes ($<$1), and increases along gradients of enrichment. Second, the contribution of planktonic heterotrophs (bacteria and zooplankton) to community respiration is highest in oligotrophic lakes. Third, planktonic heterotrophs dominate community biomass in oligotrophic lakes, whereas phytoplankton increasingly dominate plankton biomass along gradients of enrichment. These three distinct patterns were then tested simultaneously in a set of lakes that span a wide trophic gradient. Results indicated that the plankton of oligotrophic and mesotrophic lakes were characterized by P/R ratios well below unity, and a high contribution of heterotrophs to both community respiration and biomass. These trends are completely the opposite in the most productive lakes. The plankton communities of oligotrophic temperate lakes are predominantly heterotrophic and extensively utilize external inputs of carbon, and therefore only the plankton of eutrophic lakes conformed to the classical phytoplankton-based food web. In most lakes, excess heterotrophic activity could be supported by inputs of organic matter from the drainage basin. Excess plankton respiration, fueled by allochthonous organic carbon, could represent an important source of CO$ sb2$ to lakes.
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Identification of fish hosts for wild populations of rare freshwater mussels (Lampsilis cariosa and Leptodea ochracea) using a molecular DNA key /Kneeland, Stephen C. January 2006 (has links) (PDF)
Thesis (M.S.) in Ecology and Environmental Science--University of Maine, 2006. / Includes vita. Includes bibliographical references (leaves 71-75).
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