Record Display for the EPA National Library Catalog
RECORD NUMBER: 848 OF 1067Main Title | Sea Urchin ('Strongylocentrotus purpuratus') Fertilization Test Method. | |||||||||||
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Author | Chapman, G. A. ; | |||||||||||
CORP Author | Environmental Research Lab.-Narragansett, Newport, OR. | |||||||||||
Publisher | Jun 93 | |||||||||||
Year Published | 1993 | |||||||||||
Report Number | EPA/600/R-93/097 ;ERLN-N208; | |||||||||||
Stock Number | PB93-196988 | |||||||||||
Additional Subjects | Echinodermata ; Sea urchins ; Toxic substances ; Water pollution effects ; Exposure ; Invertebrates ; Fertility ; Sperm ; Test methods ; Eggs ; Contaminants ; Concentration(Composition) ; Solutes ; Strongylocentrotus purpuratus ; Gametes ; Receiving waters | |||||||||||
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Collation | 39p | |||||||||||
Abstract | The method measures the toxicity of effluents and receiving water to the gametes of a sea urchin, Strongylocentrotus purpuratus, during a 1 h sperm exposure and a subsequent 20 min exposure period following the addition of eggs for measuring the fertilizing capacity of the sperm. The purpose of the test is to determine the concentrations of a test substance that reduce egg fertilization by exposed sperm relative to that attained by sperm in control solutions. |