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You are more than what you eat

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TitleInfo
Title
You are more than what you eat
SubTitle
using biomarkers to investigate aquatic trphic dynamics at multiple scales
Name (type = personal)
NamePart (type = family)
Young
NamePart (type = given)
Talia
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Talia Young
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author
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Jensen
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Olaf P
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Olaf P Jensen
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Advisory Committee
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chair
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Kenneth W
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Kenneth W Able
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Advisory Committee
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internal member
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McCay
NamePart (type = given)
Bonnie
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Bonnie McCay
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Advisory Committee
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internal member
Name (type = personal)
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Morin
NamePart (type = given)
Peter
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Peter Morin
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Advisory Committee
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internal member
Name (type = personal)
NamePart (type = family)
Decker
NamePart (type = given)
Mary Beth
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Mary Beth Decker
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Advisory Committee
Role
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outside member
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Rutgers University
Role
RoleTerm (authority = RULIB)
degree grantor
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Graduate School - New Brunswick
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Text
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theses
OriginInfo
DateCreated (qualifier = exact)
2016
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2016-05
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2016
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xx
Language
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eng
Abstract (type = abstract)
Chemical biomarker tools, including stable isotope and fatty acid analysis, can reveal elusive trophic relationships among plants and animals. In this dissertation, I used biomarkers in combination with other approaches to explore trophic dynamics and ecological phenomena across a range of aquatic systems from a system-wide to an individual scale. At the largest scale, I assessed spatial and temporal isotopic variability among fish throughout a large, oligotrophic lake (Chapter 1). I found that space had a generally greater effect than did time. The variability observed was greater than that in similar lakes with greater anthropogenic impact, similar to shifts attributed to introduced species, and less than changes attributed to eutrophication. These results provide important context for studies of changes in lake ecosystems around the world. At a species scale, I investigated causes (Chapter 2) and effects (Chapter 3) of an increase in abundance of an estuarine jellyfish species. To investigate drivers of this increase, I used field and shoreline-type GIS data to build a model for jellyfish abundance, used that model to hindcast jellyfish abundance, and then qualitatively validated the hindcasts against local ecological knowledge (LEK) about jellyfish abundance. Hindcasted abundances corresponded with LEK and shoreline development was one of several significant predictors of abundance. These results support a growing body of work connecting anthropogenic development with jellyfish abundance. I then examined trophic ramifications of this increase, comparing abundance and stable isotope data between regions with contrasting levels of jellyfish abundance. Results suggested that the jellyfish are likely intraguild predators, with likely cascading effects on the system and possible seasonal patterns of predation and but no dramatic differences in the food web structure between regions. At an individual scale, in Chapter 4, I investigated individual diet specialization in three species of highly mobile pelagic predators using a combination of stable isotope, fatty acid, and stomach content analysis. All three study species of predator demonstrated generalist feeding habits; supporting the idea that highly mobile species, not subject to classic constraints of density dependence, may be better served by generalist rather than specialist feeding strategies.
Subject (authority = RUETD)
Topic
Ecology and Evolution
Subject (authority = ETD-LCSH)
Topic
Food chains (Ecology)
Subject (authority = ETD-LCSH)
Topic
Biochemical markers
RelatedItem (type = host)
TitleInfo
Title
Rutgers University Electronic Theses and Dissertations
Identifier (type = RULIB)
ETD
Identifier
ETD_7223
PhysicalDescription
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electronic resource
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application/pdf
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text/xml
Extent
1 online resource (xi, 183 p. : ill.)
Note (type = degree)
Ph.D.
Note (type = bibliography)
Includes bibliographical references
Note (type = statement of responsibility)
by Talia Young
RelatedItem (type = host)
TitleInfo
Title
Graduate School - New Brunswick Electronic Theses and Dissertations
Identifier (type = local)
rucore19991600001
Location
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NjNbRU
Identifier (type = doi)
doi:10.7282/T3D220T1
Genre (authority = ExL-Esploro)
ETD doctoral
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Rights

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The author owns the copyright to this work.
RightsHolder (type = personal)
Name
FamilyName
Young
GivenName
Talia
Role
Copyright Holder
RightsEvent
Type
Permission or license
DateTime (encoding = w3cdtf); (qualifier = exact); (point = start)
2016-04-14 10:44:04
AssociatedEntity
Name
Talia Young
Role
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Affiliation
Rutgers University. Graduate School - New Brunswick
AssociatedObject
Type
License
Name
Author Agreement License
Detail
I hereby grant to the Rutgers University Libraries and to my school the non-exclusive right to archive, reproduce and distribute my thesis or dissertation, in whole or in part, and/or my abstract, in whole or in part, in and from an electronic format, subject to the release date subsequently stipulated in this submittal form and approved by my school. I represent and stipulate that the thesis or dissertation and its abstract are my original work, that they do not infringe or violate any rights of others, and that I make these grants as the sole owner of the rights to my thesis or dissertation and its abstract. I represent that I have obtained written permissions, when necessary, from the owner(s) of each third party copyrighted matter to be included in my thesis or dissertation and will supply copies of such upon request by my school. I acknowledge that RU ETD and my school will not distribute my thesis or dissertation or its abstract if, in their reasonable judgment, they believe all such rights have not been secured. I acknowledge that I retain ownership rights to the copyright of my work. I also retain the right to use all or part of this thesis or dissertation in future works, such as articles or books.
RightsEvent
DateTime (encoding = w3cdtf); (qualifier = exact); (point = start)
2016-05-31
DateTime (encoding = w3cdtf); (qualifier = exact); (point = end)
2017-05-31
Type
Embargo
Detail
Access to this PDF has been restricted at the author's request. It will be publicly available after May 31st, 2017.
Copyright
Status
Copyright protected
Availability
Status
Open
Reason
Permission or license
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Technical

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2016-04-14T14:30:10
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2016-04-14T14:30:10
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