Global ETD Search

91	Use of RNA:DNA ratios for assessing secondary production of planktonic food webs: effects of temperature, salinity, food and heavy metals Speekmann, Christa Liane 28 August 2008 (has links) Not available / text Copepoda RNA DNA Marine plankton
92	The influence of hydraulic retention time on planktonic biomass in lakes and reservoirs / Thompson, Lisa C. January 1992 (has links) Hydraulic retention time (HRT) might contribute to the substantial variation in phosphorus-chlorphyll and chlorophyll-zooplankton models because rapid flushing might depress plankton development. However, for a world-wide data set. HRT was not correlated with chlorophyll. Total phosphorus had no effect on chlorphyll when hypereutrophic sites were considered separately, but chlorophyll was negatively related to HRT. Short term HRT, averaged over periods up to one month, was not correlated with chlorophyll, or zooplankton biomass, in seven impoundments on the St. Lawrence and Ottawa Rivers. The size distribution of algae was not affected by HRT. The proportion of rotifer to total zooplankton biomass was positively related to HRT, but this trend disappeared when nauplius biomass was removed from the total. These results indicate that rapid flushing does not necessarily reduce planktonic biomass and that short term HRT is not useful for the prediction and management of planktonic biomass in these systems. Eutrophication. Streamflow. Freshwater plankton. Phosphorus.
93	Organic productivity of inshore waters of Barbados : a study of the island mass effect and its causes. Sander, Finn January 1971 (has links) No description available. Biological productivity -- Barbados. Plankton -- Barbados.
94	The effect of protistan bacterivory on bacterioplankton community structure Suzuki, Marcelino 14 October 1997 (has links) Graduation date: 1998 Marine bacteria Plankton Molecular ecology
95	Coastal upwelling and the ecology of lower trophic levels Laurs, R. Michael 04 April 1967 (has links) Graduation date: 1967 Food chains (Ecology) Plankton -- Oregon
96	The dynamics of a plankton community : feedback analysis of a specialized predator-prey interaction in a stressed environment Montague, Clay Lafitte 05 1900 (has links) No description available. Plankton Utah Feedback control systems
97	Ecology of plankton in a terminal lake Walker Lake, Nevada, USA / McKinnon-Newton, Laurie. January 2007 (has links) Thesis (M.S.)--University of Nevada, Reno, 2007. / "August 2007." Includes bibliographical references (leaves 100-106). Online version available on the World Wide Web.
98	Fate of typical lake plankton in streams ... Chandler, D. C. January 1900 (has links) Thesis (Ph. D.)--University of Michigan, 1934. / Cover title. "A qualitative-quantitative plankton study ... was made on portions of the Huron river, Maple river and Bessey creek, Michigan."--P. 478. "Reprinted from Ecological monographs, vol. 7, no. 4, 1937." "Literature cited": p. 479.
99	Microplanktonic ATP-biomass and GTP-productivity associated with upwelling off Pt. Sur, California Bronsink, Sherman Hughes. January 1980 (has links) Thesis (M.S.)--Naval Postgraduate School, 1980. / Includes bibliographical references (leaves 65-67).
100	Faunal, sedimentary, and magnetic investigations of Arctic Ocean bottom cores Steuerwald, Bradley Allen, January 1969 (has links) Thesis (M.S.)--University of Wisconsin--Madison, 1969. / eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.

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