Orth's talk, "Mud, Sweat, and Jeers: The Science and Policy of Instream Flows," reviewed both historical events and progress in the development of policies to protect instream flows — the water flow in a stream and an indicator of the stream's ecological health — in the United States, particularly in the Southeast.
"The southeastern United States is one of the fastest growing regions in the country, and the human population continues to expand at a rapid pace," Orth pointed out. "In some states, the population has more than doubled in the past 50 years."
"There is a direct relationship between land and water use and the imperilment of fishes," he noted. "It is clear that the conservation of our diverse fish fauna and other aquatic resources faces huge challenges ahead as demands grow to impound streams, divert stream flow, and pump groundwater."
Of all animal species on the Federal endangered and threatened species list, 46 percent are found in freshwater habitats. The highest number of species at risk occurs in the southeastern United States.
"While all of the North American ecosystems are in trouble, freshwater habitats are recognized to be at severe risk because of their scarcity and the high demands placed on them by humans," Orth added.
"As various government entities begin to look for future water supply for cities, agriculture, and industry, it is critical to conservation that the habitat needs of fishes and other aquatic biota are taken into consideration," he concluded.
Recent scientific advances in fish conservation were highlighted on Orth's talk, as well as motivation and advice for engaging with state and local leaders in the water supply planning process.
The Southeastern Fishes Council is a nonprofit scientific organization dedicated to the study and conservation of freshwater and coastal fishes of the southeastern United States. The southeastern region includes the greatest global biodiversity of temperate freshwater fish species, and has well over half of all species found in North America.
A flash version of the presentation is at: http://www.fishwild.vt.edu/faculty/Orth/MudSweatJeers/Mud%20Sweat%20Jeers%20Flash%20SWF/index.htm
Lynn Davis | EurekAlert!
Scientists team up on study to save endangered African penguins
16.11.2017 | Florida Atlantic University
Climate change: Urban trees are growing faster worldwide
13.11.2017 | Technische Universität München
Heat from the friction of rocks caused by tidal forces could be the “engine” for the hydrothermal activity on Saturn's moon Enceladus. This presupposes that...
The WHO reports an estimated 429,000 malaria deaths each year. The disease mostly affects tropical and subtropical regions and in particular the African continent. The Fraunhofer Institute for Silicate Research ISC teamed up with the Fraunhofer Institute for Molecular Biology and Applied Ecology IME and the Institute of Tropical Medicine at the University of Tübingen for a new test method to detect malaria parasites in blood. The idea of the research project “NanoFRET” is to develop a highly sensitive and reliable rapid diagnostic test so that patient treatment can begin as early as possible.
Malaria is caused by parasites transmitted by mosquito bite. The most dangerous form of malaria is malaria tropica. Left untreated, it is fatal in most cases....
The formation of stars in distant galaxies is still largely unexplored. For the first time, astron-omers at the University of Geneva have now been able to closely observe a star system six billion light-years away. In doing so, they are confirming earlier simulations made by the University of Zurich. One special effect is made possible by the multiple reflections of images that run through the cosmos like a snake.
Today, astronomers have a pretty accurate idea of how stars were formed in the recent cosmic past. But do these laws also apply to older galaxies? For around a...
Just because someone is smart and well-motivated doesn't mean he or she can learn the visual skills needed to excel at tasks like matching fingerprints, interpreting medical X-rays, keeping track of aircraft on radar displays or forensic face matching.
That is the implication of a new study which shows for the first time that there is a broad range of differences in people's visual ability and that these...
Computer Tomography (CT) is a standard procedure in hospitals, but so far, the technology has not been suitable for imaging extremely small objects. In PNAS, a team from the Technical University of Munich (TUM) describes a Nano-CT device that creates three-dimensional x-ray images at resolutions up to 100 nanometers. The first test application: Together with colleagues from the University of Kassel and Helmholtz-Zentrum Geesthacht the researchers analyzed the locomotory system of a velvet worm.
During a CT analysis, the object under investigation is x-rayed and a detector measures the respective amount of radiation absorbed from various angles....
15.11.2017 | Event News
15.11.2017 | Event News
30.10.2017 | Event News
23.11.2017 | Information Technology
23.11.2017 | Physics and Astronomy
23.11.2017 | Life Sciences