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Biologists Investigate Novel Way to Repopulate Brook Trout Native to the Southern Appalachian Mountains Each of these hatcheries have different water sources: the Tennessee Aquarium Conservation Institute uses recirculating water in their systems; the Tellico Trout Hatchery uses stream water; and the Erwin Trout Hatchery is springfed. As part of these efforts, fisheries biologist Brad Cook and his team, including graduate student T.J. Johnson, were called in to collect data on which of these methods is the best. (Cookeville, Tenn.) The Tennessee Wildlife Resources Agency (TWRA) and the U.S. Forest Service are interested in protecting a species of fish that, while not endangered, is declining in numbers. The brook trout Salvelinus fontinalis is the only species native to the southern Appalachian Mountains, and—thanks to encroachment from other fish, acid deposition and dropping pH levels—are now restricted to extreme headwaters. While techniques like electrofishing and angling have been used to remove rainbow trout Oncorhynchs mykiss, the fish that are competing for the brook trout’s habitat, methods of restocking are helping supplement those efforts and repopulate the brook trout in their home. One method of restocking involves translocation, or moving fish from other areas to the new stream. But, genetically, that might not be the best way. The use of hatcheries to raise brook trout populations seems to be the most effective way of restocking. In 1992, TWRA began raising southern Appalachian brook trout at Tellico Trout Hatchery. The Tennessee Aquarium Conservation Institute, the Tellico Trout Hatchery, and the Erwin Trout Hatchery are now raising brook trout for this research project. The research team collects brood fish each fall from Sycamore Creek and from Left Pring Hampton Creek. About 50 male and female adult fish, ranging from five to ten inches long, are taken to the Tennessee Aquarium Conservation Institute and the Tellico Trout Hatchery where the researchers take milt from males and eggs from females and then place the fertilized eggs in incubation jars until they hatch. “The colder the water temperature, the longer it takes for hatching,” Cook said. According to Johnson’s data, the spawnings in 2013 were the most productive at the Aquarium Hatchery, with approximately 53% of the eggs surviving from the eyed egg stage to the fingerling stage, in which the fish can be transported back to the river. “The fingerlings are packed in thick plastic bags and transported by horse to the streams in September,” Johnson said. “There they are evenly distributed along the streams. If they live until March and survive the winter, we consider the fish as having recruited to the population.” The researchers mark the fish with pliable plastic tags to distinguish which hatchery they originated from. They are careful to restock fish back into the stream from which they originated, i.e., Left Prong Hampton Creek fish back into Left Prong Hampton Creek and the Sycamore Creek fish back into Sycamore. The researchers revisit the sites 30, 90 and 180 days after stocking. While mortality of stocked fish is possible through predation and prolonged cold temperatures, researchers are not sure to what extent this occurs because flood events can also push them down stream, in which case they may not be dead. Researchers know that angling is not a major threat to brook trout because their size and the difficulty in reaching their habitat keeps them from being as desirable a catch as other fishes to most anglers. “This helps tell us that hatchery propagation and stocking methods are suitable techniques to establish these populations of fish,” Cook said. “Eventually, we hope that we won’t have to stock them, but we’re going to gather another years’ worth of data before the project will be complete. “We’re finding that Sycamore Creek is in need of restoration, but it’s becoming a good population of brook trout whereas Left Prong Hampton Creek is already a good population. “This project is teaching us a lot about the brook trout’s habitat and survival needs,” Cook said. He and Johnson want to publish their work to make future restocking and restoration efforts more effective. Johnson has already presented his data at state meetings. He plans to graduate with a master’s degree through the project in May 2016. Follow our social media to stay current on all things WRC: @TnTechWaterCenter fb.me/TnTechWaterCenter
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Columbia College Chicago―Chicago, IL BFA, Graphic Design Education Graduation 2014 Columbia Fall College Chicago―Chicago, IL Dean’s List (2013, 2014) BFA, Graphic Design Graduation Fall 2014 (Expected) Experience Dean’s List (2013, 2014) Graphic Designer/Interactive Designer Experience KeyLimeTie―Oak Brook, IL Specialist September 2015―present Apple Store―Oak Brook, IL Work with major clients to design their websites and mobile applications with the end user January 2014―current in mind.
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2016 Seminar & Conference Calendar SEPTEMBER MARCH / APRIL 7 8 New York, NY Hospital Execu ve Briefing Hospital CMS Update 20 21 Hospital Execu ve Briefing Hospital CMS Update 26 27 28 CJCP Essen als Prep Hospital Execu ve Briefing Hospital CMS Update Las Vegas, NV 29 29‐30 30‐31 30‐31 31‐1 1 Hospital CMS Basics Environment of Care Base Camp Ambulatory Accredita on Essen als Hospital Accredita on Essen als Exploring the Life Safety Chapter Orthopedic Cer fica on : Core & Advanced Programs EDU1604 EDU1602 Los Angeles, CA EDU1605 EDU1603 EDU1607 MAY New Orleans, LA 3‐4 Emergency Management Standards Pre‐Conference Emergency Preparedness Conference EDU1620 EDU1606 EDU1608 EDU1621 EDU1622 Rosemont, IL * Includes: Total Hip & Total Knee, Core Hip or Knee, Spinal 2 EDU1619 EDU1623 EDU1624 EDU1625 OCTOBER Oakbrook Terrace, IL EDU1609 6‐7 Environment of Care and Life Safety for Ambulatory Care 18‐19 Behavioral Health Conference 26 27‐28 Primary Medical Home Care (Pre‐Conf) Ambulatory Care Conference EDU1632 Rosemont, IL EDU1626 Rosemont, IL EDU1627 EDU1628 Lombard, IL 16‐17 18 19‐20 Hospital Accredita on Essen als Maximizing Hospital Tracer Ac vi es Home Care Accredita on Essen als EDU1610 EDU1611 EDU1612 JUNE Oak Brook, IL 8 9 Hospital CMS Basics Stroke Cer fica on: EDU1613 EDU1614 * Includes: Acute Stroke Ready Hospital, Primary Stroke Center, Comprehensive Stroke Center, and Stroke Cer fica on 101 tracks 28‐29 Ambulatory Accredita on Essen als NOVEMBER Lake Buena Vista, FL EDU1615 8‐9 Environment of Care Base Camp 10‐11 Exploring the Life Safety Chapter JULY Oak Brook, IL 26‐27 Environment of Care Base Camp 28‐29 Exploring the Life Safety Chapter www.jcrinc.com EDU1630 Oakbrook Terrace, IL EDU1616 EDU1617 EDU1629 10 Home Care Execu ve Briefings 877 / 223-6866 EDU1631
Who Are the Corbynites, and What Do They Believe?