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Full-Text Articles in Life Sciences
Effects Of Herbicides On Zebrafish Embryo Development And Viability, Kayla Ray King
Effects Of Herbicides On Zebrafish Embryo Development And Viability, Kayla Ray King
MSU Graduate Theses
Environmental contaminants are chemicals of anthropogenic origin that are found in water, soil, and air, and are harmful to a wide variety of organisms (ORD US EPA, 2018-a). One common group of contaminants are herbicides. Though herbicides are used to control unwanted vegetation in agriculture, aquatic organisms and humans may be exposed to these herbicides through run off into streams and rivers, by drinking contaminated water, by consuming treated crops, by direct exposure, or through bioaccumulation. Thus the effect of these herbicides on animals needs further investigation. In this study, I sought to determine whether six different herbicides, which have …
Simplifying Methods For In Vitro Metamorphosis Of Glochidia, Morgan A. Kern
Simplifying Methods For In Vitro Metamorphosis Of Glochidia, Morgan A. Kern
MSU Graduate Theses
Captive culture of Unionoid mussels is complicated by the parasitic larval stage, which normally requires a host fish for metamorphosis. Alternatively, some mussel species can metamorphose in vitro, i.e. in an artificial medium in Petri dishes. Most workers have used 5% CO2 atmosphere and bicarbonate to stabilize pH, requiring a specialized incubator. In the present study, in vitro metamorphosis success of Anodonta oregonensis and other species were higher or similar in air than in 1%, or 5% CO2. The nutritional role of the medium was tested by substituting physiological saline without nutrients at varying intervals before …