Browsing by Author "Ethaiya, Diana"

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    Global patterns and drivers of ecosystem functioning in rivers and riparian zones
    (2019-01-09) Tiegs, Scott D.; Costello, David M.; Isken, Mark W.; Woodward, Guy; McIntyre, Peter B.; Gessner, Mark O.; Chauvet, Eric; Griffiths, Natalie A.; Flecker, Alex S.; Acuña, Vicenç; Albariño, Ricardo; Allen, Daniel C.; Alonso, Cecilia; Andino, Patricio; Arango, Clay; Aroviita, Jukka; Barbosa, Marcus V. M.; Barmuta, Leon A.; Baxter, Colden V.; Bell, Thomas D. C.; Bellinger, Brent; Boyero, Luz; Brown, Lee E.; Bruder, Andreas; Bruesewitz, Denise A.; Burdon, Francis J.; Callisto, Marcos; Canhoto, Cristina; Capps, Krista A.; Castillo, María M.; Clapcott, Joanne; Colas, Fanny; Colón-Gaud, Checo; Cornut, Julien; Crespo-Pérez, Verónica; Cross, Wyatt F.; Culp, Joseph M.; Danger, Michael; Dangles, Olivier; de Eyto, Elvira; Derry, Alison M.; Díaz Villanueva, Veronica; Douglas, Michael M.; Elosegi, Arturo; Encalada, Andrea C.; Entrekin, Sally; Espinosa, Rodrigo; Ethaiya, Diana; Ferreira, Verónica; Ferriol, Carmen; Flanagan, Kyla M.; Fleituch, Tadeusz; Follstad Shah, Jennifer J.; Frainer Barbosa, André; Friberg, Nikolai; Frost, Paul C.; Garcia, Erica A.; García Lago, Liliana; García Soto, Pavel Ernesto; Ghate, Sudeep; Giling, Darren P.; Gilmer, Alan; Gonçalves, José Francisco Jr.; Gonzales, Rosario Karina; Graça, Manuel A. S.; Grace, Mike; Grossart, Hans-Peter; Guérold, François; Gulis, Vlad; Hepp, Luiz U.; Higgins, Scott; Hishi, Takuo; Huddart, Joseph; Hudson, John; Imberger, Samantha; Iñiguez-Armijos, Carlos; Iwata, Tomoya; Janetski, David J.; Jennings, Eleanor; Kirkwood, Andrea E.; Koning, Aaron A.; Kosten, Sarian; Kuehn, Kevin A.; Laudon, Hjalmar; Leavitt, Peter R.; Lemes da Silva, Aurea L.; Leroux, Shawn J.; LeRoy, Carri J.; Lisi, Peter J.; MacKenzie, Richard; Marcarelli, Amy M.; Masese, Frank O.; McKie, Brendan G.; Medeiros, Adriana Oliveira; Meissner, Kristian; Miliša, Marko; Mishra, Shailendra; Miyake, Yo; Moerke, Ashley; Mombrikotb, Shorok; Mooney, Rob; Moulton, Tim; Muotka, Timo; Negishi, Junjiro N.; Neres-Lima, Vinicius; Nieminen, Mika L.; Nimptsch, Jorge; Ondruch, Jakub; Paavola, Riku; Pardo, Isabel; Patrick, Christopher J.; Peeters, Edwin T. H. M.; Pozo, Jesus; Pringle, Catherine; Prussian, Aaron; Quenta, Estefania; Quesada, Antonio; Reid, Brian; Richardson, John S.; Rigosi, Anna; Rincón, José; Rîşnoveanu, Geta; Robinson, Christopher T.; Rodríguez-Gallego, Lorena; Royer, Todd V.; Rusak, James A.; Santamans, Anna C.; Selmeczy, Géza B.; Simiyu, Gelas; Skuja, Agnija; Smykla, Jerzy; Sridhar, Kandikere R.; Sponseller, Ryan; Stoler, Aaron; Swan, Christopher M.; Szlag, David; Teixeira-de Mello, Franco; Tonkin, Jonathan D.; Uusheimo, Sari; Veach, Allison M.; Vilbaste, Sirje; Vought, Lena B. M.; Wang, Chiao-Ping; Webster, Jackson R.; Wilson, Paul B.; Woelfl, Stefan; Xenopoulos, Marguerite A.; Yates, Adam G.; Yoshimura, Chihiro; Yule, Catherine M.; Zhang, Yixin X.; Zwart, Jacob A.
    River ecosystems receive and process vast quantities of terrestrial organic carbon, the fate of which depends strongly on microbial activity. Variation in and controls of processing rates, however, are poorly characterized at the global scale. In response, we used a peer-sourced research network and a highly standardized carbon processing assay to conduct a global-scale field experiment in greater than 1000 river and riparian sites. We found that Earth’s biomes have distinct carbon processing signatures. Slow processing is evident across latitudes, whereas rapid rates are restricted to lower latitudes. Both the mean rate and variability decline with latitude, suggesting temperature constraints toward the poles and greater roles for other environmental drivers (e.g., nutrient loading) toward the equator. These results and data set the stage for unprecedented “next-generation biomonitoring” by establishing baselines to help quantify environmental impacts to the functioning of ecosystems at a global scale.
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    Minimizing the spread of New Zealand mud snails through decontamination of fishing gear: A comparison of approaches
    Ethaiya, Diana; Tiegs, Scott
    New Zealand mud snails (NZMS) are an invasive species recently discovered in economically important trout streams in the Great Lakes region. NZMS are thought to be transported by attaching to fishing equipment. To help control NZMS spread we evaluated the effectiveness of several chemical compounds (Virkon Aquatic, Formula 409, bleach, and water as a control), 2 application methods (soaking and spraying) and two application durations (10 and 20 minutes) at decontaminating fishing waders. Following chemical exposure, we assessed NZMS mortality at timed intervals after placing snails in recovery chambers. One hour after exposure we observed differences in mean NZMS mortality (+/- SD) among chemical treatments, with the greatest caused by Formula 409 (100% +/- 0.0). Virkon resulted in 56.3% +/-23.94, bleach resulted in 68.8% +/- 23.94, and water had no effect on NMZS mortality. Neither application method nor duration had a significant effect on mortality. These results show that Formula 409, a readily available household cleaning product, holds promise as a practical way to decontaminate fishing gear, and minimize the spread of NZMS in aquatic ecosystems.