scholarly journals Metabolic Costs of Exposure to Wastewater Effluent Lead to Compensatory Adjustments in Respiratory Physiology in Bluegill Sunfish

2018 ◽  
Vol 52 (2) ◽  
pp. 801-811 ◽  
Author(s):  
Sherry N. N. Du ◽  
Erin S. McCallum ◽  
Maryam Vaseghi-Shanjani ◽  
Jasmine A. Choi ◽  
Theresa R. Warriner ◽  
...  
Behaviour ◽  
2019 ◽  
Vol 156 (15) ◽  
pp. 1495-1517 ◽  
Author(s):  
Adrienne R. McLean ◽  
Sherry N.N. Du ◽  
Jasmine A. Choi ◽  
Brett M. Culbert ◽  
Erin S. McCallum ◽  
...  

Abstract Wastewater from municipal, agricultural and industrial sources is a pervasive contaminant of aquatic environments worldwide. Most studies that have investigated the negative impacts of wastewater on organisms have taken place in a laboratory. Here, we tested whether fish behaviour is altered by exposure to environmentally relevant concentrations of wastewater effluent in the field. We caged bluegill sunfish (Lepomis macrochirus) for 28 days at two sites downstream (adjacent to and 870 m) from a wastewater treatment plant and at a reference site without wastewater inputs. We found that exposed fish had a dampened response to simulated predation compared to unexposed fish, suggesting that fish may be at greater risk of predation after exposure to wastewater effluent. Fish held at the different sites did not differ in activity and exploration. Our results suggest that predator avoidance may be impaired in fish exposed to wastewater effluent, which could have detrimental implications for aquatic communities.


Author(s):  
Sherry N.N. Du ◽  
Jasmine A. Choi ◽  
Erin S. McCallum ◽  
Adrienne R. McLean ◽  
Brittney G. Borowiec ◽  
...  

2017 ◽  
Vol 2017 (9) ◽  
pp. 3095-3102
Author(s):  
Joseph G Jacangelo ◽  
Nathan Dunkin ◽  
Shih-Chi Weng ◽  
James McQuarrie ◽  
Kati Bell ◽  
...  

2021 ◽  
Vol 778 ◽  
pp. 146278
Author(s):  
Yufei Shi ◽  
Shengnan Li ◽  
Liye Wang ◽  
Qingmiao Yu ◽  
Guochen Shen ◽  
...  

Author(s):  
Nadine Siebdrath ◽  
Bertram Skibinski ◽  
Shiju Abraham ◽  
Roy Bernstein ◽  
Robert Berger ◽  
...  

Organic fouling in RO desalination of tertiary wastewater is of major concern in the decline in membrane performance.


Sensors ◽  
2021 ◽  
Vol 21 (15) ◽  
pp. 4952
Author(s):  
Tobias Baumgartner ◽  
Steffen Held ◽  
Stefanie Klatt ◽  
Lars Donath

Running power as measured by foot-worn sensors is considered to be associated with the metabolic cost of running. In this study, we show that running economy needs to be taken into account when deriving metabolic cost from accelerometer data. We administered an experiment in which 32 experienced participants (age = 28 ± 7 years, weekly running distance = 51 ± 24 km) ran at a constant speed with modified spatiotemporal gait characteristics (stride length, ground contact time, use of arms). We recorded both their metabolic costs of transportation, as well as running power, as measured by a Stryd sensor. Purposely varying the running style impacts the running economy and leads to significant differences in the metabolic cost of running (p < 0.01). At the same time, the expected rise in running power does not follow this change, and there is a significant difference in the relation between metabolic cost and power (p < 0.001). These results stand in contrast to the previously reported link between metabolic and mechanical running characteristics estimated by foot-worn sensors. This casts doubt on the feasibility of measuring running power in the field, as well as using it as a training signal.


Science ◽  
1966 ◽  
Vol 153 (3732) ◽  
pp. 160-161
Author(s):  
R. G. Fisher

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