Toxicity of deicing salt components to early amphibian life stages

Show simple item record

dc.contributor.advisor Russell, Ron
dc.creator Collins, Sara 2011-03-18T16:52:27Z 2011-03-18T16:52:27Z 2010
dc.identifier.other QL669.2 C65 2010
dc.description vi, 102 leaves : ill. ; 29 cm. en_CA
dc.description Includes abstract and appendices.
dc.description Includes bibliographical references (leaves 68-85).
dc.description.abstract Chemical contamination is a primary factor contributing to worldwide amphibian declines. Road salt is a major pollutant producing elevated chloride concentrations in freshwater systems. Additionally, ferrocyanide anti-caking agents are released from road salt and effects on the environment are poorly understood. Amphibians exhibit low tolerance to salt. Our purpose is to investigate chronic, sub-lethal NaCl exposure on developmental amphibian stages and determine acute toxicity of cyanide. Chronic toxicity experiments at environmentally significant salt concentrations were conducted on larvae of three species and embryos of five species in the laboratory. Species tested were spotted salamanders, American toads, spring peepers, green frogs and wood frogs. Cyanide acute toxicity experiments were performed on the five species. Chronic salt exposure reduced hatching, increased mortality, and induced developmental and behavioural anomalies. Median lethal concentration values were calculated from cyanide acute toxicity experiments. Results indicate that the chronic effects can inflict detrimental consequences to amphibian populations. en_CA
dc.description.provenance Submitted by Dianne MacPhee ( on 2011-03-18T16:52:27Z No. of bitstreams: 0 en
dc.description.provenance Made available in DSpace on 2011-03-18T16:52:27Z (GMT). No. of bitstreams: 0 Previous issue date: 2010 en
dc.language.iso en en_CA
dc.publisher Halifax, N.S. : Saint Mary's University en_CA
dc.subject.lcc QL669.2
dc.subject.lcsh Amphibians -- Effect of chemicals on
dc.subject.lcsh Toxicity testing
dc.subject.lcsh Amphibians -- Effect of salt on
dc.title Toxicity of deicing salt components to early amphibian life stages en_CA
dc.type Text en_CA Master of Science in Applied Science Masters Biology Saint Mary's University (Halifax, N.S.)
 Find Full text

Files in this item


This item appears in the following Collection(s)

Show simple item record

Search DSpace


My Account