Injury frequency and severity in crayfish communities as indicators of physical habitat quality and water quality within agricultural headwater streams

Environmental Monitoring and Assessment
Tyler C WoodKevin W King

Abstract

Crayfishes (Decapoda) are common inhabitants of agricultural headwater streams in the Midwestern USA that have been impacted by physical habitat degradation and contamination by agricultural pollutants. The frequency and severity of injuries within crayfish communities are indicators of crayfish aggression, which is influenced by physical, chemical, and biotic factors. Previous studies have not evaluated the relationships of the frequency and severity of crayfish injuries with physical habitat quality, water quality, and biotic factors within agricultural headwater streams. Understanding these relationships will assist with determining if crayfish injury variables can serve as an indicator of physical habitat quality or water quality in these small degraded streams. We sampled crayfishes, documented the frequency and type of injuries, and measured instream habitat and water chemistry in 2014 and 2015 within 12 agricultural headwater streams in Indiana, Michigan, and Ohio. We documented five native crayfish species from 1641 adult captures. The most abundant species were Faxonius rusticus, Faxonius immunis, and Faxonius propinquus. Linear mixed effect model analyses indicated that four crayfish injury response variables were pos...Continue Reading

References

Apr 6, 2004·Oecologia·Nathan J Dorn, Jeremy M Wojdak
Dec 7, 2007·Archives of Environmental Contamination and Toxicology·Michelle E Cook, Paul A Moore
Oct 12, 2012·Environmental Monitoring and Assessment·Iryna KuklinaPavel Kozák
Nov 17, 2017·Bulletin of Environmental Contamination and Toxicology·David D EdwardsPaul A Moore
Jun 21, 2018·Archives of Environmental Contamination and Toxicology·Alexandra N SteelePaul A Moore

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