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Modeling plankton in a human-impacted estuary
Descriptive
TitleInfo
Title
Modeling plankton in a human-impacted estuary
SubTitle
copepod-vs. jellyfish-dominated communities
Name
(type = personal)
NamePart
(type = family)
Crum
NamePart
(type = given)
Kevin Patrick
NamePart
(type = date)
1989-
DisplayForm
Kevin Crum
Role
RoleTerm
(authority = RULIB)
author
Name
(type = personal)
NamePart
(type = family)
Fuchs
NamePart
(type = given)
Heidi L
DisplayForm
Heidi L Fuchs
Affiliation
Advisory Committee
Role
RoleTerm
(authority = RULIB)
chair
Name
(type = personal)
NamePart
(type = family)
Wilkin
NamePart
(type = given)
John L
DisplayForm
John L Wilkin
Affiliation
Advisory Committee
Role
RoleTerm
(authority = RULIB)
internal member
Name
(type = personal)
NamePart
(type = family)
Jensen
NamePart
(type = given)
Olaf P
DisplayForm
Olaf P Jensen
Affiliation
Advisory Committee
Role
RoleTerm
(authority = RULIB)
internal 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)
2014
DateOther
(qualifier = exact);
(type = degree)
2014-05
Place
PlaceTerm
(type = code)
xx
Language
LanguageTerm
(authority = ISO639-2b);
(type = code)
eng
Abstract
(type = abstract)
Taxonomic shifts can alter predator feeding preference and modify ecosystem function through top-down biological control. In Barnegat Bay-Little Egg Harbor Estuary, sea nettle (Chrysaora quinquecirrha) abundances have increased in the northern portions of the estuary, where salinity and density of anthropogenically hardened surfaces are favorable. Here I evaluate the geographical variation in top-down influence of C. quinquecirrha on marine plankton communities. I simulated a range of jellyfish- to copepod-dominated ecosystems using a highly size-resolved nutrient-phytoplankton-zooplankton (NPZ) model. Zooplankton feeding is parameterized as a community-averaged value based on predator-prey size ratios and breadth of prey sizes. I compared model output to observational data collected in the estuary during two months of high C. quinquecirrha abundance (July and August 2012). I predicted that observational data from the northern region would be more similar to the jellyfish-dominated model outputs, because C. quinquecirrha abundance is higher in the north. Contrary to expectations, increased C. quinquecirrha abundance in the northern regions of the estuary did not lead to better agreement between observational data from northern sites and C. quinquecirrha feeding based model simulations. All northern sites had observational data more similar to the copepod-dominated model. In fact, the site that was most similar to the jellyfish-dominated model was in the southern region, where C. quinquecirrha are excluded. I suspect that these results indicate complex interactions between C. quinquecirrha and ctenophore Mnemiopsis leidyi. The abundance of M. leidyi, a voracious copepod predator, is greatly reduced in the northern region despite having wide environmental tolerances. Predation by C. quinquecirrha may limit the distribution of M. leidyi and indirectly cause copepod-dominance in the northern region of the estuary. The results of this study suggest that the impact of jellyfish on marine plankton community functioning is site- and taxa-specific. Feeding preferences are shown to be important top-down control on marine phytoplankton communities.
Subject
(authority = RUETD)
Topic
Oceanography
Subject
(authority = ETD-LCSH)
Topic
Estuarine health--New Jersey--Barnegat Bay
Subject
(authority = ETD-LCSH)
Topic
Copepoda--New Jersey--Barnegat Bay
Subject
(authority = ETD-LCSH)
Topic
Jellyfishes--New Jersey--Barnegat Bay
Subject
(authority = ETD-LCSH)
Topic
Marine phytoplankton--New Jersey--Barnegat Bay
RelatedItem
(type = host)
TitleInfo
Title
Rutgers University Electronic Theses and Dissertations
Identifier
(type = RULIB)
ETD
RelatedItem
(type = host)
TitleInfo
Title
Graduate School - New Brunswick Electronic Theses and Dissertations
Identifier
(type = local)
rucore19991600001
Identifier
ETD_5504
Identifier
(type = doi)
doi:10.7282/T3P55KS8
PhysicalDescription
Form
(authority = gmd)
electronic resource
InternetMediaType
application/pdf
InternetMediaType
text/xml
Extent
viii, 56 p. : ill.
Note
(type = degree)
M.S.
Note
(type = bibliography)
Includes bibliographical references
Note
(type = statement of responsibility)
by Kevin Patrick Crum
Location
PhysicalLocation
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(displayLabel = Rutgers, The State University of New Jersey)
NjNbRU
Genre
(authority = ExL-Esploro)
ETD graduate
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Rights
RightsDeclaration
(ID = rulibRdec0006)
The author owns the copyright to this work.
RightsHolder
(type = personal)
Name
FamilyName
Crum
GivenName
Kevin
Role
Copyright Holder
RightsEvent
Type
Permission or license
DateTime
(encoding = w3cdtf);
(qualifier = exact);
(point = start)
2014-04-14 16:21:29
AssociatedEntity
Name
Kevin Crum
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.
RightsEvent
DateTime
(encoding = w3cdtf);
(qualifier = exact);
(point = start)
2014-05-31
DateTime
(encoding = w3cdtf);
(qualifier = exact);
(point = end)
2015-05-31
Type
Embargo
Detail
Access to this PDF has been restricted at the author's request. It will be publicly available after May 31st, 2015.
Copyright
Status
Copyright protected
Availability
Status
Open
Reason
Permission or license
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Technical
RULTechMD
(ID = TECHNICAL1)
ContentModel
ETD
OperatingSystem
(VERSION = 5.1)
windows xp
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Statistical Profile