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Full-Text Articles in Physical Sciences and Mathematics
Understanding Basin Specific Life History Characteristics Of Lake Mead Quagga Mussels (Dreissena Bugensis) And A Potential Treatment Using Uv Radiation In Laboratory Studies, Melissa Thaw
UNLV Theses, Dissertations, Professional Papers, and Capstones
The quagga mussel (Dreissena bugensis) is an aquatic invasive species that is spreading throughout Lake Mead and other western waterways. Unlike their native waters in Eurasia, Lake Mead exhibits year round warm temperatures, high calcium levels and a lack of natural predators, all of which are very favorable conditions for their growth and spread. Dreissena bugensis reproduce and colonize hard surfaces rapidly, where they filter large amounts of water. They disrupt the aquatic food chain and interfere with infrastructure that is exposed to lake water. There is an urgent need to understand Dreissena bugensis life history characteristics within this new …
Effects Of Environmental Variables On The Reproduction Of Quagga Mussels (Dreissena Rostriformis Bugensis) In Lake Mead, Nv/Az, Richard Steven Ianniello
Effects Of Environmental Variables On The Reproduction Of Quagga Mussels (Dreissena Rostriformis Bugensis) In Lake Mead, Nv/Az, Richard Steven Ianniello
UNLV Theses, Dissertations, Professional Papers, and Capstones
In 2007, quagga mussels (Dreissena rostriformis bugensis) were found in Lake Mead and have spread downstream on the Colorado River and to other lakes and reservoirs in the Southwestern United States. The quagga mussel's extremely quick colonization of Lake Mead and annual veliger abundance trends provide evidence that the quagga mussels in the Southwest have different reproductive behavior than in previous habitats. This study is one of the first to specifically examine quagga mussel reproduction in the Southwest and examines how quagga mussel reproduction varies at sites known to have different temperatures and other environmental variables resulting from the input …
Spawning, Veliger Growth And Desiccation Of Dreissena Bugensis, Lynn Schwaebe
Spawning, Veliger Growth And Desiccation Of Dreissena Bugensis, Lynn Schwaebe
UNLV Theses, Dissertations, Professional Papers, and Capstones
Quagga (Dreissena bugensis) mussel veliger growth was compared under two dietary conditions: 1) only seston present in Lake Mead water; and 2) Lake Mead seston plus algae (Isochrysis galbana). Shell length, width, and area were compared as a function of time for the two treatments. It was expected that mussels would exhibit faster growth when supplemented with I. galbana than with Lake Mead water alone. However, no significant difference was observed between the control and I. galbana treatments. This result was unexpected and may have been caused by water quality, the nutritional content of Lake Mead seston, and/or over feeding. …
Quagga Mussels In The Western United States: Monitoring And Management, Wai Hing Wong, Shawn Gerstenberger
Quagga Mussels In The Western United States: Monitoring And Management, Wai Hing Wong, Shawn Gerstenberger
Environmental & Occupational Health Faculty Publications
Dreissenid mussels including zebra mussel (Dreissena polymorpha Pallas, 1771), originating from the Ponto-Caspian area, and quagga mussel (Dreissena rostriformis bugensis Andrusov, 1897), originating from the mouths of the Rivers Southern Bug and Dnieper are both species native to Eastern Europe, which were accidently introduced into the Laurentian Great Lakes in North America in the 1980s in ballast water (Carlton 2008; Van der Velde et al 2010). Dreissenid mussels have created severe ecological, recreational and economic impacts on many systems because they are biofoulers and efficient ecological engineers that filter large quantities of water. Examples of these wide-ranging impacts are discussed …
Interagency Monitoring Action Plan (I-Map) For Quagga Mussels In Lake Mead, Nevada-Arizona, Usa, Kent Turner, Wai Hing Wong, Shawn Gerstenberger, Jennell M. Miller
Interagency Monitoring Action Plan (I-Map) For Quagga Mussels In Lake Mead, Nevada-Arizona, Usa, Kent Turner, Wai Hing Wong, Shawn Gerstenberger, Jennell M. Miller
Environmental & Occupational Health Faculty Publications
Following the discovery of quagga mussels in Lake Mead, Nevada-Arizona, USA, a variety of federal, state and regional agencies set up monitoring programs to evaluate and gain information to help minimize the impacts, or potential impacts, of quagga mussels to their facilities and lake ecology. While the agencies have worked closely and shared monitoring data and findings from the beginning of the infestation, there has been no documented comprehensive monitoring program to describe and record the various quagga mussel-related monitoring needs. Ad hoc interagency quagga mussel meeting representatives established an Interagency Monitoring Action Plan (I-MAP), which outlines agency objectives related …