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dc.contributor.advisorHoldway, Douglas
dc.contributor.authorBeyger, Lindsay Alexandra
dc.date.accessioned2009-10-13T16:37:44Z
dc.date.accessioned2022-03-29T17:06:09Z
dc.date.available2009-10-13T16:37:44Z
dc.date.available2022-03-29T17:06:09Z
dc.date.issued2009-08-01
dc.identifier.urihttps://hdl.handle.net/10155/36
dc.description.abstractEndosulfan is a commonly used organochlorine in Durham Region, Ontario Canada which has known toxic effects on non-target organisms including fish. This research investigated the effects of endosulfan on Florida flagfish (Jordanella floridae), using both continuous and pulse-exposure. The 96 hour continuous exposure LC50 in larval flagfish was 4.35 μg/L; sub-lethal observations included hyperactivity, convulsions, and some axis malformation. The effects of a 4 hour endosulfan pulse-exposure on 7-8 day-old larval growth, reproduction, and survivability were investigated over one full life-cycle. The 4 hour pulse-exposure LC50 value for larval flagfish was 49.7 μg/L; there were no growth or reproductive effects of endosulfan pulse-exposure up to the highest exposure concentration of 10 μg/L. Thus, the life-cycle 4-h pulse-exposure no observed effect concentration (NOEC) and lowest observed effect concentration (LOEC) were 3.2 and 10 μg/L endosulfan, respectively, due to significantly higher mortality.en
dc.description.sponsorshipUniversity of Ontario Institute of Technologyen
dc.language.isoenen
dc.subjectEndosulfanen
dc.subjectLife-cycleen
dc.subjectReproductionen
dc.subjectFlagfishen
dc.titleGrowth, survivability, and reproductive effects of pulse-dosed endosulfan on jordanella floridae (florida flagfish) over one complete life-cycleen
dc.typeThesisen
dc.degree.levelMaster of Science (MSc)en
dc.degree.disciplineApplied Bioscienceen


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