Global ETD Search

41	Bayesian Phylogenetics of Snail-Killing Flies (Diptera: Sciomyzidae) and Freshwater Mussels (Bivalvia: Unionidae): Implications of Parallel Evolution, Feeding Group Structure and Molecular Evolution Chapman, Eric George 26 November 2008 (has links) No description available. Biology Snail-kiling flies Diptera Sciomyzidae freshwater mussels feeding behavior evolution Unionidae Ambleminae systematics Bayesian phylogenetics maximum likelihood character optimization DUI diversifying selection
42	A multi-spatial analysis of land use effects on freshwater mussels in the Upper Cuyahoga River and Tinkers Creek Atwell, Tamar 18 August 2022 (has links) No description available. Aquatic Sciences Biology Ecology Cuyahoga River Upper Cuyahoga River Tinkers Creek freshwater mussels land use soil drainage flow velocity unionid unionidae
43	Population biology and fish hosts of several federally endangered freshwater mussels (Bivalvia: Unionidae) of the upper Tennessee River drainage, Virginia and Tennessee Watson, Brian T. 22 August 2008 (has links) A freshwater mussel survey was conducted in Indian Creek, Tazewell County, Virginia, during 1996 and 1997. Fifteen species were identified, including the federally endangered <i>Epioblasma florentina walkeri<i>, <i>Villosa perpurpurea</i>, and <i>Quadrula cylindrica strigillata</i>. Population assessments and fish host identifications were completed for the tan riffleshell and purple bean populations. Host fish for <i>E. f. walkeri</i> were limited to the banded and mottled sculpin, greenside darter, redline darter, fantail darter, and snubnose darter. Fish hosts identified for <i>V. perpurpurea</i> also were the banded and mottled sculpin, greenside darter, and redline darter. Size class structure of the tan riffleshell population ranged from 19.9 to 53.3 mm, with the population estimated at nearly 700 individuals with a density of 0.015/m². Size class structure of the purple bean population ranged from 22.9 to 66.7 mm, with the population estimated at only 70 individuals with a density of 0.002/m². Host fish also were identified for <i>Dromus dromas</i> and <i>Lemiox rimosus</i>. The fantail darter was identified as a host for <i>D. dromas</i>, with the snubnose darter serving as a host for <i>L. rimosus</i>. Additional percids were implicated as hosts for both mussel species. A molecular genetic key for identifying host fishes of the upper Clinch River also was constructed. The key was constructed through the analysis of restriction fragment length polymorphisms from amplified regions of mussel DNA. Thirty-six unionid species were incorporated into the key. No host fishes were identified due to an unsolved problem with amplifying DNA from glochidia collected from wild fish. / Master of Science mussels Unionidae Indian Creek Clinch River Powell River host fish polymerase chain reaction restriction fragment length polymorphism tan riffle shell purple bean bird-wing pearly mussel monkeyface dromedary pearly mussel LD5655.V855 1999.W387
44	Factors Affecting Invertebrate and Fish Communities in Coastal Wetlands of the Great Lakes Kapusinski, Douglas John 19 November 2012 (has links) No description available. Animal Sciences Aquatic Sciences Biology Ecology Entomology Environmental Science Environmental Studies Freshwater Ecology Organismal Biology Zoology benthic invertebrates Lake Erie marsh Great Lakes Coastal Wetland shorebirds common carp Cyprinus carpio Dreissenidae Driessena polymorpha Unionidae Quadrula quadrula Chironomidae Oligochaeta Sphaeriidae Non-metric Multidimensional Scaling

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