Open Access. Powered by Scholars. Published by Universities.®

Physical Sciences and Mathematics Commons

Open Access. Powered by Scholars. Published by Universities.®

Articles 1 - 5 of 5

Full-Text Articles in Physical Sciences and Mathematics

Susceptibility Of Quagga Mussels (Dreissena Rostriformis Bugensis) To Hot-Water Sprays As A Means Of Watercraft Decontamination, Sean Comeau, Scott Rainville, Wen Baldwin, Emily Austin, Shawn Gerstenberger, Chad Cross, Wai Wong Mar 2014

Susceptibility Of Quagga Mussels (Dreissena Rostriformis Bugensis) To Hot-Water Sprays As A Means Of Watercraft Decontamination, Sean Comeau, Scott Rainville, Wen Baldwin, Emily Austin, Shawn Gerstenberger, Chad Cross, Wai Wong

Shawn Gerstenberger

The recent spread of dreissenid mussels to various bodies of water in the western US has sparked interest by many state and federal agencies to develop protocols to stop further expansion. Quagga mussels (Dreissena rostriformis bugensis) are of particular importance as they are currently the most widespread dreissenid species in the region. This project examined the susceptibility of quagga mussels to hot-water sprays at different temperatures and durations of spray contact at Lake Mead (Nevada-Arizona, USA). Emersed adult quagga mussels were exposed to hot-water sprays at 20, 40, 50, 54, 60, 70, and 80°C for 1, 2, 5, 10, 20, …


Introduction, Tor Hundloe Sep 2013

Introduction, Tor Hundloe

Tor Hundloe

ExtractAsk people to think of a catchment and they tend to think of large geographical areas and extensive communities, for example the Nile River and all the people who work on and around it and benefit from it. As the Nile catchment illustrates, many large catchments extend beyond the boundaries of one nation. For some of the world’s largest river basins, not just two, but many more countries can have some or all of their territory in the basin. National boundaries dissect catchments. A variety of different land uses and human occupations make diversity the norm of catchment economies and …


Managing Knowledge For The Development Of The Mekong Delta., Hans-Dieter Evers, Solvay Gerke Apr 2012

Managing Knowledge For The Development Of The Mekong Delta., Hans-Dieter Evers, Solvay Gerke

Solvay Gerke

No abstract provided.


Efficient Water Conservation In Agriculture For Growing Urban Water Demands In Jordan, Raed Al-Tabini, A.R. Octavio, A,W. Frank, R. Phillips Dec 2010

Efficient Water Conservation In Agriculture For Growing Urban Water Demands In Jordan, Raed Al-Tabini, A.R. Octavio, A,W. Frank, R. Phillips

Raed Al-Tabini

A significant challenge worldwide is to increase food supply to accommodate a population growing to 10 billion in the face of climate change. Per capita water supply in Jordan is among the world’s lowest. Despite this scarcity, three quarters of Jordan’s water use is consumed by irrigated agriculture, while producing low economic values at the margin compared to urban uses. However, irrigated agriculture supports Jordan’s food security, so its policymakers continue to examine measures to produce more crop‐per‐drop in irrigated agriculture to permit scarce water to meet growing urban demands. This paper examines economically efficient measures to conserve water in …


Community-Based Projects In Jordan's Badia: The Anaqeed Al-Khair Case Study, Raed Al-Tabini, B. Gorman, J. Libbin, R. Grassberger, I. Abuamoud, S. Aloun Dec 2007

Community-Based Projects In Jordan's Badia: The Anaqeed Al-Khair Case Study, Raed Al-Tabini, B. Gorman, J. Libbin, R. Grassberger, I. Abuamoud, S. Aloun

Raed Al-Tabini

No abstract provided.