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Full-Text Articles in Aquaculture and Fisheries

Rediscovering The Maryland Darter (Etheostoma Sellare), Tyler Russell Hern Jan 2011

Rediscovering The Maryland Darter (Etheostoma Sellare), Tyler Russell Hern

Theses, Dissertations and Capstones

The Maryland darter has not been observed since 1988. Historic populations were located in Deer Creek, Swan Creek, and Gashey’s Run all of which occur in the lower Susquehanna drainage. At these locations, specimens were collected or observed at the lowest riffle of the stream. Some researchers suggest this may be a large river darter. The Conowingo Dam complicates surveying below the facility due to the rapid fluctuations in water levels caused by regulation for power production. Surveying efforts included trawling in the mainstem, and visual surveys in the mainstem, and searching/sampling all historically known locations of Etheostoma sellare. During …


The Little Coal River Improvement Project, West Virginia: An Initial Study Of Sediment, Bacteria And Benthic Macroinvertebrates, Emily Vargo Jan 2011

The Little Coal River Improvement Project, West Virginia: An Initial Study Of Sediment, Bacteria And Benthic Macroinvertebrates, Emily Vargo

Theses, Dissertations and Capstones

The Little Coal River, located in southern West Virginia, has undergone many changes over the last few years in an effort to reverse the negative effects of various point source and non-point source pollutions. Marshall University, in cooperation with the West Virginia Department of Environmental Protection, Army Corp of Engineers, and the Coal River Group, has designed and implemented a plan for rehabilitation known as the Little Coal Improvement Project. Several improvement structures were strategically installed within the Little Coal River during the summer of 2007. The functions of these structures include sediment flushing and overall habitat improvement. Monitoring these …


Phylogenetic Analysis Of Blacknose Dace (Rhinichthys) In West Virginia Streams, Samantha Taylor Jan 2011

Phylogenetic Analysis Of Blacknose Dace (Rhinichthys) In West Virginia Streams, Samantha Taylor

Theses, Dissertations and Capstones

Blacknose dace (Rhinichthys) are one of the most common cyprinid fishes in eastern North America. They also have been a topic of debate for over 30 years because morphology-based systematics has failed to clearly define their taxa. Taxonomists classify the complex into two species and one subspecies: the eastern form, R. atratulus atratulus; and the western form R. obtusus obtusus, and southern form R. obtusus meleagris. This research uses the mitochondrial cytochrome b gene and genomic RAG 2 gene in a phylogenetic analysis to help clarify species relations according to differences between each current species. Maps have been created to …


Plastron Reduction And Associated Myology In Turtles, And Its Implications For Functional Morphology And Natural History, He Zhu Jan 2011

Plastron Reduction And Associated Myology In Turtles, And Its Implications For Functional Morphology And Natural History, He Zhu

Theses, Dissertations and Capstones

This study seeks to understand the locomotor implications of plastron reduction in turtles through dissection, description and qualitative and quantitative analysis of muscle masses. A comparative study will be conducted between a turtle species with a reduced plastron (Chelydra serpentina) and a species with a full plastron (Trachemys scripta elegans) to gain a better understanding of how the reduced plastron in snapping turtles affects their myology and gait. Quantitative data on muscular mass and length will be obtained for statistical comparison between the two clades. Data collected will be used to make inferences on gait, stance and natural history.