Evaluation of the short term 12 hour toxicity of 3-trifluoromethyl-4-nitrophenol (TFM) to multiple life stages of Venustaconcha ellipsiformis and Epioblasma triquetra and its host fish (Percina caprodes).
The present study evaluated the risk of 12-h exposures of the lampricide 3-trifluoromethyl-4-nitrophenol (TFM) to multiple life stages of the federally endangered snuffbox (Epioblasma triquetra) and its primary host fish the common logperch (Percina caprodes) as well as a surrogate to the snuffbox, the ellipse (Venustaconcha ellipsiformis). Life stages examined included free glochidia, 1-wk juveniles, and adults of the ellipse; free glochidia, glochidia on host fish, and 1-wk juveniles of the snuffbox; and adult logperch. Larval sea lampreys were also tested alongside adult ellipse and logperch for direct comparison. Survival exceeded 82% among all life stages in both mussel species at levels up to 1.8 times what would be applied during treatments, suggesting that routine sea lamprey control operations would not adversely affect mussels. However, substantial mortality of adult logperch was observed at TFM concentrations typically applied to streams, and loss of host fish could adversely affect snuffbox reproduction. In addition, TFM had no significant effect on the number of glochidia that metamorphosed on adult logperch. Although the snuffbox is not likely to be acutely affected from sea lamprey control operations, mitigation efforts to minimize impacts to the host fish should be considered.
US Geological Survey, Upper Midwest Environmental Sciences Center, La Crosse, Wisconsin, USA.
Michael A
MA
Boogaard
US Geological Survey, Upper Midwest Environmental Sciences Center, La Crosse, Wisconsin, USA.
Teresa J
TJ
Newton
US Geological Survey, Upper Midwest Environmental Sciences Center, La Crosse, Wisconsin, USA.
Terrance D
TD
Hubert
Marquette Biological Station, US Fish and Wildlife Service, Marquette, Michigan, USA.
Cheryl A
CA
Kaye
Missouri State University, Springfield, Missouri, USA.
M Christopher
MC
Barnhart
D000818:Animals; D006790:Host-Parasite Interactions / Q000187:drug effects; D008018:Life Cycle Stages / Q000187:drug effects; D009596:Nitrophenols / Q000633:toxicity*; D010471:Perches / Q000469:parasitology / Q000502:physiology*; D010571:Pest Control / Q000592:standards*; D048428:Petromyzon / Q000502:physiology*; D049876:Unionidae / Q000187:drug effects* / Q000254:growth & development / Q000502:physiology
D009596:Nitrophenols; C003687:3-trifluoromethyl-4-nitrophenol
Ellipse; Life stage; Snuffbox; TFM; Toxicity