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dc.contributor.advisorMcIvor, Carole C.en_US
dc.contributor.authorAlanen, Marit Ingrid
dc.creatorAlanen, Marit Ingriden_US
dc.date.accessioned2013-05-16T09:51:19Z
dc.date.available2013-05-16T09:51:19Z
dc.date.issued1998en_US
dc.identifier.urihttp://hdl.handle.net/10150/292019
dc.description.abstractTo determine the factors affecting the distribution and abundance of submersed aquatic vegetation (SAV) within Topock Marsh, I measured 4 factors: (1) light availability (water depth and turbidity); (2) substrate type (grain size and organic content); (3) sediment nutrient availability; and (4) exposure to wave action. Multiple regression indicated that turbidity negatively affected the distribution and abundance of SAV in Topock Marsh during 1996 and 1997. Principal components analysis of sediment data in combination with a manipulative experiment indicated substrate type and sediment nutrients may influence SAV. Young shoots of Najas marina L. grew taller and had more branches when grown in sediments that had a smaller grain size and relatively higher amounts of NH4-N and soluble K. If the main objective of the refuge is to provide waterfowl foraging habitat, careful manipulation of water levels may be necessary to adequately promote the growth of SAV in Topock Marsh.
dc.language.isoen_USen_US
dc.publisherThe University of Arizona.en_US
dc.rightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.en_US
dc.subjectBiology, Botany.en_US
dc.subjectAgriculture, Forestry and Wildlife.en_US
dc.titleFactors affecting the distribution and abundance of submersed aquatic vegetation in Topock Marsh, an impounded desert wetlanden_US
dc.typetexten_US
dc.typeThesis-Reproduction (electronic)en_US
thesis.degree.grantorUniversity of Arizonaen_US
thesis.degree.levelmastersen_US
dc.identifier.proquest1392410en_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.disciplineWildlife and Fisheries Scienceen_US
thesis.degree.nameM.S.en_US
dc.identifier.bibrecord.b39118617en_US
refterms.dateFOA2018-06-26T09:33:57Z
html.description.abstractTo determine the factors affecting the distribution and abundance of submersed aquatic vegetation (SAV) within Topock Marsh, I measured 4 factors: (1) light availability (water depth and turbidity); (2) substrate type (grain size and organic content); (3) sediment nutrient availability; and (4) exposure to wave action. Multiple regression indicated that turbidity negatively affected the distribution and abundance of SAV in Topock Marsh during 1996 and 1997. Principal components analysis of sediment data in combination with a manipulative experiment indicated substrate type and sediment nutrients may influence SAV. Young shoots of Najas marina L. grew taller and had more branches when grown in sediments that had a smaller grain size and relatively higher amounts of NH4-N and soluble K. If the main objective of the refuge is to provide waterfowl foraging habitat, careful manipulation of water levels may be necessary to adequately promote the growth of SAV in Topock Marsh.


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