LIFESCI 2D03 Lecture Notes - Lecture 6: Eutrophication, Fluoxetine, Bluegill
6 Dec 2016
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Drugs down the drain behavioural ecology as a tool for examining human impacts on aquatic ecosystems: erin mccallum. Use of synthetic products growing in developed countries over past 50 years. Use of pharmaceuticals on the rise: rise in antidepressants, canada at top of list, caffeine can make way back to environment. Dose we take is not fully metabolized by body and eventually makes way. Additional examples [on slide: how does this affect aquatic animals like fish. Fish are our canaries in the coalmine. We can look at the fish to determine the health of the ecosystems. Do fish absorb these products in tissues: yes, norfluro-antidepressants, fish forced to be exposed to them, oral contraceptives like birth control. Male darters exposed in grand river water shed kitchener waterloo eerier fertilize fewer eggs. Males are feminized testes look like females. Effluent exposure impacts: sex ratio differences. Estrogenic compound exposure lose ability to mate appropriately.
