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Responses of young-of-the-year bluefish, Pomatomus saltatrix, exposed to contaminants from an urban estuary
Descriptive
TypeOfResource
Text
TitleInfo
(ID = T-1)
Title
Responses of young-of-the-year bluefish, Pomatomus saltatrix, exposed to contaminants from an urban estuary
Identifier
ETD_2512
Identifier
(type = hdl)
http://hdl.rutgers.edu/1782.2/rucore10001600001.ETD.000052981
Language
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(type = code)
eng
Genre
(authority = marcgt)
theses
Subject
(ID = SBJ-1);
(authority = RUETD)
Topic
Ecology and Evolution
Subject
(ID = SBJ-2);
(authority = ETD-LCSH)
Topic
Bluefish
Subject
(ID = SBJ-3);
(authority = ETD-LCSH)
Topic
Polychlorinated biphenyls
Subject
(ID = SBJ-4);
(authority = ETD-LCSH)
Topic
Estuarine pollution
Abstract
(type = abstract)
Certain populations of young-of-the-year (YOY) bluefish, Pomatomus saltatrix, reside in contaminated estuaries of the mid-Atlantic bight during periods of rapid growth and development. YOY bluefish from the Tuckerton, NJ area of Great Bay (TK) were fed daily in a laboratory with common prey fish, menhaden and mummichog, from two sites: TK (reference) or Hackensack River (HR) (contaminated). Bluefish were also collected from the HR and TK site for analysis. HR-fed and field-caught bluefish and HR prey fish and stomach contents contained significantly elevated concentrations of PCBs, DDTs, and mercury. HR bluefish had reduced growth, feeding, and activity. tPCB and tDDT concentrations in prey in the stomachs of HR bluefish were higher than those in the field-caught specimens. Prey with higher body burdens may become slower and easier to capture. If bluefish are preferentially foraging on such prey, greater amounts of contaminants can be trophically transferred. PCB congeners accumulated at different concentrations creating PCB fingerprints which correlated with feeding ecology of the fish. PCB fingerprints in the HR-fed bluefish were nearly identical to each other and closest to that of the mummichog, their sole prey during the last month of the feeding experiment. PCB fingerprints of field-caught bluefish were similar to menhaden, the dominant prey in HR field bluefish stomachs. In contaminated marine systems PCB fingerprints can be utilized to establish trophic levels and possibly prey preference in individual fish. In addition to altered behavior and growth, the HR-fed and field bluefish had significantly enlarged, irregular thyroid follicles, lined with thickened epithelial cells compared to the TK fish. The mean concentration of dopamine metabolites and the dopaminergic activity levels were significantly lower in HR field fish than in TK field. In contrast the mean concentrations of dopamine and serotonin and their metabolites and norepinephrine were significantly greater in the HR-fed bluefish compared the TK-fed. Overall the exposed fish displayed neurological and hormonal disruptions that may be responsible for their altered behavior and growth. In conclusion, the altered growth, feeding, activity and physiology of YOY bluefish exposed to these contaminated regimes may have detrimental effects on migration fitness and recruitment success.
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electronic resource
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xii, 256 p. : ill.
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Note
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Ph.D.
Note
Includes abstract
Note
Vita
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(type = bibliography)
Includes bibliographical references
Note
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by Allison C. Candelmo
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Candelmo
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Allison C.
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1977-
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author
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Allison Candelmo
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Weis
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Judith S.
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chair
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Advisory Committee
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Judith S. Weis
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(type = family)
Jordan
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Rebecca
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internal member
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Advisory Committee
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Rebecca Jordan
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Cooper
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Keith
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internal member
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Advisory Committee
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Keith Cooper
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Weis
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Pedrick
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outside member
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Advisory Committee
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Pedrick Weis
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Deshpande
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Ashok
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outside member
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Advisory Committee
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Ashok Deshpande
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Rutgers University
Role
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degree grantor
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Graduate School - New Brunswick
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school
OriginInfo
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2010
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2010-05
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xx
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NjNbRU
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Title
Rutgers University Electronic Theses and Dissertations
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ETD
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TitleInfo
Title
Graduate School - New Brunswick Electronic Theses and Dissertations
Identifier
(type = local)
rucore19991600001
Identifier
(type = doi)
doi:10.7282/T3H9959C
Genre
(authority = ExL-Esploro)
ETD doctoral
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Rights
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The author owns the copyright to this work.
Copyright
Status
Copyright protected
Availability
Status
Open
Reason
Permission or license
RightsHolder
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(type = personal)
Name
FamilyName
Candelmo
GivenName
Allison
Role
Copyright Holder
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Type
Permission or license
DateTime
2010-03-26 19:59:39
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Name
Allison Candelmo
Affiliation
Rutgers University. Graduate School - New Brunswick
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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.
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ETD
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application/x-tar
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3123200
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