Assessing the toxicity and teratogenicity of pond water in north-central Minnesota to amphibians

Environmental Science and Pollution Research International
Christine BridgesJames Huckins

Abstract

Incidence of amphibian deformities have increased in recent years, especially in the northern region of the United States. While many factors have been proposed as being responsible for generating deformities (e.g., contaminants, ultraviolet radiation [UV], parasites), no single cause has been definitively established. To determine whether waterborne chemicals are responsible for amphibian deformities in ponds in north-central Minnesota, we deployed semipermeable membrane devices (SPMDs) in an impacted and a reference site to accumulate lipophilic contaminants. We then exposed native tadpoles (northern leopard frogs; Rana pipiens) to the SPMD extracts combined with two agricultural pesticides (atrazine, carbaryl) at two levels of UV radiation. UV radiation alone caused a slight increase in hatching success and tadpole growth rate. Deformity rate among hatchlings was high following exposure to SPMD extracts from the reference site in the absence of UV, suggesting that chemicals present at this site are broken down by UV to less harmful forms, or become less bioavailable. Conversely, impacted site SPMD extracts caused hatchling deformities only in the presence of UV, suggesting that UV potentiates the teratogenicity of the compou...Continue Reading

References

Feb 12, 1998·Proceedings of the National Academy of Sciences of the United States of America·A R BlausteinR G Anthony
Jan 6, 2000·Environmental Health Perspectives·J G BurkhartG Lucier

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Citations

Jan 9, 2010·Environmental Health Perspectives·Jason R Rohr, Krista A McCoy
Nov 3, 2005·Environmental Health Perspectives·Brynn TaylorPeter M Rabinowitz
Feb 20, 2008·Environment International·Jirí NovákKlára Hilscherová
Mar 26, 2013·Journal of Experimental Zoology. Part B, Molecular and Developmental Evolution·Jamie P BaconDouglas J Fort
Nov 7, 2014·Critical Reviews in Toxicology·Glen J Van Der KraakKeith R Solomon
Jun 9, 2009·Environmental Pollution·Reinier M MannScott P Wilson
Sep 21, 2007·Environment International·R McKinlayN Voulvoulis
Oct 23, 2008·Critical Reviews in Toxicology·Keith R SolomonGlen J Van Der Kraak
Nov 2, 2016·The Cochrane Database of Systematic Reviews·Kunyan ZhouChi Eung Danforn Lim
Nov 20, 2019·International Journal of Environmental Research and Public Health·Lin LiuFeng Guo
Jul 20, 2019·Ecotoxicology and Environmental Safety·Juliane Silberschmidt FreitasEvaldo Luiz Gaeta Espíndola

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