BEHAVIOR MODIFICATION IN BONYTAIL CHUB (Gila elegans) EXPOSED TO TREATED MUNICIPAL EFFLUENT; COVER-SEEKING, SPACING AND ACTIVITY LEVEL

Persistent Link:
http://hdl.handle.net/10150/626297
Title:
BEHAVIOR MODIFICATION IN BONYTAIL CHUB (Gila elegans) EXPOSED TO TREATED MUNICIPAL EFFLUENT; COVER-SEEKING, SPACING AND ACTIVITY LEVEL
Author:
Gwinn, Jessica Elease
Issue Date:
2011
Publisher:
The University of Arizona.
Rights:
Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
Abstract:
We exposed endangered bonytail chub (Gila elegans) to secondarily-treated municipal wastewater previously shown to containing low-levels of known endocrine disrupting compounds for 2.5 years. We examined; growth, cover-seeking, behavioral reaction to disturbance, spacing, activity level and chasing/paired swimming event. Fish in raceways containing municipal effluent grew larger than fish in control raceways by the end of the experiment. Bonytail chub in treatment raceways were out of cover more often when disturbed, less clumped outside of cover, and more active than fish in control raceways. There was no difference in the number of chasing/paired swimming events between fish in treatment and control raceways. Behavioral differences in fish exposed to municipal effluent may adversely affect wild bonytail chub, especially if they have to combat a variety of environmental stressors and disturbances.
Type:
text; Electronic Thesis
Degree Name:
M.S.
Degree Level:
masters
Degree Program:
Graduate College; Natural Resources and the Environment
Degree Grantor:
University of Arizona

Full metadata record

DC FieldValue Language
dc.language.isoen_USen
dc.titleBEHAVIOR MODIFICATION IN BONYTAIL CHUB (Gila elegans) EXPOSED TO TREATED MUNICIPAL EFFLUENT; COVER-SEEKING, SPACING AND ACTIVITY LEVELen_US
dc.creatorGwinn, Jessica Eleaseen
dc.contributor.authorGwinn, Jessica Eleaseen
dc.date.issued2011-
dc.publisherThe University of Arizona.en
dc.rightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.en
dc.description.abstractWe exposed endangered bonytail chub (Gila elegans) to secondarily-treated municipal wastewater previously shown to containing low-levels of known endocrine disrupting compounds for 2.5 years. We examined; growth, cover-seeking, behavioral reaction to disturbance, spacing, activity level and chasing/paired swimming event. Fish in raceways containing municipal effluent grew larger than fish in control raceways by the end of the experiment. Bonytail chub in treatment raceways were out of cover more often when disturbed, less clumped outside of cover, and more active than fish in control raceways. There was no difference in the number of chasing/paired swimming events between fish in treatment and control raceways. Behavioral differences in fish exposed to municipal effluent may adversely affect wild bonytail chub, especially if they have to combat a variety of environmental stressors and disturbances.en
dc.description.noteDigitized from a paper copy provided by the School of Natural Resources and the Environment.en
dc.typetexten
dc.typeElectronic Thesisen
thesis.degree.nameM.S.en
thesis.degree.levelmastersen
thesis.degree.disciplineGraduate Collegeen
thesis.degree.disciplineNatural Resources and the Environmenten
thesis.degree.grantorUniversity of Arizonaen
dc.contributor.committeememberWalker, David B.en
dc.contributor.committeememberMatter, William J.en
dc.contributor.committeememberReinthal, Peteren
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