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Evaluation of the ecological value of constructed intertidal oyster reefs and aquaculture structures in Delaware Bay

Descriptive

TypeOfResource
Text
TitleInfo
Title
Evaluation of the ecological value of constructed intertidal oyster reefs and aquaculture structures in Delaware Bay
SubTitle
habitat utilization by motile macrofauna
Identifier
ETD_1051
Identifier (type = hdl)
http://hdl.rutgers.edu/1782.2/rucore10001600001.ETD.000050445
Identifier (type = doi)
doi:10.7282/T3571C91
Language
LanguageTerm (authority = ISO 639-3:2007); (type = text)
English
Genre (authority = marcgt)
theses
Subject (authority = RUETD)
Topic
Ecology and Evolution
Subject (authority = ETD-LCSH)
Topic
Artificial reefs--Delaware Bay (Del. and N.J.)
Subject (authority = ETD-LCSH)
Topic
Oysters--Habitat--Conservation--Delaware Bay (Del. and N.J.)
Subject (authority = ETD-LCSH)
Topic
Mollusk culture--Delaware Bay (Del. and N.J.)
Subject (authority = ETD-LCSH)
Topic
Habitat conservation--Delaware Bay (Del. and N.J.)
Subject
HierarchicalGeographic
Country
UNITED STATES
State
Delaware
Subject
HierarchicalGeographic
Country
UNITED STATES
State
New Jersey
Abstract
The Cape Shore on the New Jersey side of Delaware Bay USA is an extensive high-energy polyhaline intertidal zone that consistently receives the highest oyster (Crassostrea virginica) settlement in the Bay. Intertidal oyster reefs in lower Delaware Bay are ephemeral, and it is generally assumed that oyster mortality due to predation, disease and winter ice scouring inhibit their persistence. If protected, however, oysters survive and grow well; hence, oyster aquaculture is developing at the site. In June 2006, shell-bag oyster reefs of varying height were constructed on the intertidal sand flats in lower Delaware Bay to determine the potential for oyster reef restoration in this temperate estuary. Oysters survived a heavy formation of ice during winter 2007, but shifting sediments nearly buried the shortest reef by April 2007, a process that may be important in limiting the development of oyster reefs in this system.
In May 2007, six 2-layer shell-bag reefs were constructed. These constructed reefs as well as rack and bag oyster culture systems provided semi-permanent structures that form potential habitats for motile fauna on the sand flats of the Cape Shore. To assess the habitat potential of these structures, constructed reefs, aquaculture racks and adjacent sand flats were monitored for utilization by motile macrofauna using wire mesh traps, crab pots and eel traps from May through October 2007. Species richness for aquaculture racks (25 species) and shell-bag reefs (22 species) were comparable and significantly greater than on the sand flats (17 species). Seven species were unique to aquaculture racks. Species abundance was five times greater around aquaculture racks and three times greater around shell-bag reefs compared to sand flats. Intertidal oyster reefs and aquaculture structures increased habitat complexity, attracted similar assemblages of motile macrofauna and supported an increased species abundance, biomass and species richness compared to sand flats. Based on these metrics, oyster aquaculture rack and bag structures are comparable habitat to intertidal oyster reef habitat in Delaware Bay.
PhysicalDescription
Form (authority = gmd)
electronic resource
Extent
viii, 77 p. : ill.
InternetMediaType
application/pdf
InternetMediaType
text/xml
Note (type = degree)
M.S.
Note (type = bibliography)
Includes bibliographical references (p. 73-77)
Note (type = statement of responsibility)
by Jaclyn C. Taylor
Name (type = personal)
NamePart (type = family)
Taylor
NamePart (type = given)
Jaclyn C.
Role
RoleTerm (authority = RULIB)
author
DisplayForm
Jaclyn C. Taylor
Name (type = personal)
NamePart (type = family)
Bushek
NamePart (type = given)
David
Role
RoleTerm (authority = RULIB)
chair
Affiliation
Advisory Committee
DisplayForm
David Bushek
Name (type = personal)
NamePart (type = family)
Able
NamePart (type = given)
Kenneth
Role
RoleTerm (authority = RULIB)
internal member
Affiliation
Advisory Committee
DisplayForm
Kenneth Able
Name (type = personal)
NamePart (type = family)
Morin
NamePart (type = given)
Peter
Role
RoleTerm (authority = RULIB)
internal member
Affiliation
Advisory Committee
DisplayForm
Peter Morin
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
OriginInfo
DateCreated (qualifier = exact)
2008
DateOther (qualifier = exact); (type = degree)
2008-10
Place
PlaceTerm (type = code)
xx
Location
PhysicalLocation (authority = marcorg)
NjNbRU
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
Subject (authority = lcsh/lcnaf)
Geographic
Delaware
Subject (authority = lcsh/lcnaf)
Geographic
New Jersey
Genre (authority = ExL-Esploro)
ETD graduate
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Rights

RightsDeclaration (AUTHORITY = GS); (ID = rulibRdec0006)
The author owns the copyright to this work.
Copyright
Status
Copyright protected
Availability
Status
Open
RightsEvent (AUTHORITY = rulib); (ID = 1)
Type
Permission or license
Detail
Non-exclusive ETD license
AssociatedObject (AUTHORITY = rulib); (ID = 1)
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.
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Technical

ContentModel
ETD
MimeType (TYPE = file)
application/pdf
MimeType (TYPE = container)
application/x-tar
FileSize (UNIT = bytes)
1300480
Checksum (METHOD = SHA1)
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