Staff View
Spatial and seasonal particulate organic carbon cycling within the Delaware estuary, assessed using biomarker and stable carbon isotopic approaches

Descriptive

TitleInfo
Title
Spatial and seasonal particulate organic carbon cycling within the Delaware estuary, assessed using biomarker and stable carbon isotopic approaches
Name (type = personal)
NamePart (type = family)
Hermes
NamePart (type = given)
Anna Lauren
NamePart (type = date)
1985-
DisplayForm
Anna Hermes
Role
RoleTerm (authority = RULIB)
author
Name (type = personal)
NamePart (type = family)
Sikes
NamePart (type = given)
Elisabeth
DisplayForm
Elisabeth Sikes
Affiliation
Advisory Committee
Role
RoleTerm (authority = RULIB)
chair
Name (type = personal)
NamePart (type = family)
Chant
NamePart (type = given)
Robert
DisplayForm
Robert Chant
Affiliation
Advisory Committee
Role
RoleTerm (authority = RULIB)
internal member
Name (type = personal)
NamePart (type = family)
Canuel
NamePart (type = given)
Elizabeth
DisplayForm
Elizabeth Canuel
Affiliation
Advisory Committee
Role
RoleTerm (authority = RULIB)
outside member
Name (type = corporate)
NamePart
Rutgers University
Role
RoleTerm (authority = RULIB)
degree grantor
Name (type = corporate)
NamePart
Graduate School - New Brunswick
Role
RoleTerm (authority = RULIB)
school
TypeOfResource
Text
Genre (authority = marcgt)
theses
OriginInfo
DateCreated (qualifier = exact)
2013
DateOther (qualifier = exact); (type = degree)
2013-05
Place
PlaceTerm (type = code)
xx
Language
LanguageTerm (authority = ISO639-2b); (type = code)
eng
Abstract (type = abstract)
The fate of terrestrial-derived organic matter (OM) in estuaries is poorly characterized, obscuring the link between carbon cycles of land and sea. This study characterized sources of OM in the Delaware Estuary using multiple organic geochemical analyses: bulk and compound-specific stable carbon isotopes, and n-alkane and phospholipid fatty acid (PLFA) biomarkers. The spatial and temporal variations in particulate organic matter (POM) character in both surface and bottom waters were evaluated for 5 seasonal cruises in 2010-2011. Axial transects were from a marine to a riverine endmember, and geochemical analyses additionally emphasized the estuarine turbidity maxima (ETM), and chlorophyll maxima. POM characteristics were consistent with previous studies. POM was generally <10% organic carbon (OC) and the δ13C signature of POM became progressively enriched moving downstream, from -26.5 ± 2.3‰ at the riverine endmember to -22.0 ± 1.9‰ at the marine endmember. Yet, mixing of sources in the ETM and spring phytoplankton bloom signatures in Delaware Bay masked the pathway of terrestrial sources. In contrast, n-alkane and PLFA biomarkers showed the proportion of algal- and terrestrial-derived OM to be comparable in surface waters throughout the estuary and bottom waters were substantially higher in terrestrial and marsh inputs. Bottom water particulates in the ETM comprise the largest suspended OC pool in the estuary, which has a significant terrestrial component and was previously uncharacterized. Biomarker results from this study suggest that the ETM is an effective trap of terrestrial POM. The δ13C of long chain n-alkanes (C23-C33) confirmed substantial inputs from C4 marsh plant material in both September 2010 (-29.3 ± 0.9‰), and in March 2011 (-31.0 ± 2.1‰). The presence of marsh-derived OM in the main axis of the estuary and ETM suggests that lateral processes are important for OM cycling in estuaries and that the vascular plant derived OM reaching the ocean may not be sourced from upland drainage basins, but from more local inputs such as fringing wetlands. The role of marsh-derived OM in the marine OC cycle demands further attention to fully constrain its reactivity and fate in the marine environment.
Subject (authority = RUETD)
Topic
Oceanography
Subject (authority = ETD-LCSH)
Topic
Bulk solids--Sampling
RelatedItem (type = host)
TitleInfo
Title
Rutgers University Electronic Theses and Dissertations
Identifier (type = RULIB)
ETD
Identifier
ETD_4694
PhysicalDescription
Form (authority = gmd)
electronic resource
InternetMediaType
application/pdf
InternetMediaType
text/xml
Extent
xi, 174 p. : ill.
Note (type = degree)
M.S.
Note (type = bibliography)
Includes bibliographical references
Note (type = statement of responsibility)
by Anna Lauren Hermes
Subject (authority = lcsh/lcnaf)
Geographic
Delaware River Estuary
Subject (authority = ETD-LCSH)
Topic
Oceanography
Identifier (type = hdl)
http://hdl.rutgers.edu/1782.1/rucore10001600001.ETD.000068880
RelatedItem (type = host)
TitleInfo
Title
Graduate School - New Brunswick Electronic Theses and Dissertations
Identifier (type = local)
rucore19991600001
Location
PhysicalLocation (authority = marcorg); (displayLabel = Rutgers, The State University of New Jersey)
NjNbRU
Identifier (type = doi)
doi:10.7282/T3668BR2
Genre (authority = ExL-Esploro)
ETD graduate
Back to the top

Rights

RightsDeclaration (ID = rulibRdec0006)
The author owns the copyright to this work.
RightsHolder (type = personal)
Name
FamilyName
Hermes
GivenName
Anna
Role
Copyright Holder
RightsEvent
Type
Permission or license
DateTime (encoding = w3cdtf); (qualifier = exact); (point = start)
2013-04-15 02:59:53
AssociatedEntity
Name
Anna Hermes
Role
Copyright holder
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.
Copyright
Status
Copyright protected
Availability
Status
Open
Reason
Permission or license
Back to the top

Technical

RULTechMD (ID = TECHNICAL1)
ContentModel
ETD
OperatingSystem (VERSION = 5.1)
windows xp
Back to the top
Version 8.5.5
Rutgers University Libraries - Copyright ©2024