2026-09-21T14:09:22Zhttps://api.mountainscholar.org/server/oai/request

oai:mountainscholar.org:10217/1702952025-12-30T03:37:50Zcom_10217_100532com_10217_100000com_10217_100418com_10217_100303col_10217_100538col_10217_100420

B'ey, Theadora Danita, author Ramsdell, Howard, advisor Legare, Marie, committee member Spraker, Terry, committee member 2016-01-11T15:13:37Z 2016-01-11T15:13:37Z 2015 Bey_colostate_0053N_13264.pdf http://hdl.handle.net/10217/170295 https://doi.org/10.25675/3.018899 Two experiments were performed to aid in establishing a new Colorado chronic water quality criterion for total iron. Although the effects of dissolved ferrous iron have been well documented, limited data are available regarding ferric iron specific toxicity in aquatic ecosystems. Juvenile rainbow trout (Oncorhynchus mykiss) critical swim speed (Ucrit) was measured to establish if there was a relationship between chronic sublethal ferric iron exposure and changes in Ucrit. The gills were examined for histological changes and fish growth was measured as endpoints. No significant changes in Ucrit growth or gill histology were found in the first experiment, although suggestive trends were noted. The Ucrit experiment was challenging on multiple levels, in part due to the diminutive size of the fish used in the experiment. A second study was performed on juvenile cutthroat trout chronically exposed to sublethal concentrations of ferric iron. The critical thermal maximum (CTmax) and changes in weight were tested. There were no significant changes in CTmax or weight measured in the second experiment. born digital masters theses English eng Colorado State University. Libraries 2000-2019 Copyright and other restrictions may apply. User is responsible for compliance with all applicable laws. For information about copyright law, please see https://libguides.colostate.edu/copyright. Effects of chronic, sublethal ferric iron exposure on the critical swim speed of rainbow trout (Oncorhynchus mykiss) and critical thermal maximum of cutthroat trout (Oncorhynchus clarkii) Text Master of Science (M.S.) Masters Environmental and Radiological Health Sciences Colorado State University This Item is protected by copyright and/or related rights (https://rightsstatements.org/vocab/InC/1.0/). You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s). open.access