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Processes affecting macrofaunal community structure in sandy sediments on the New Jersey inner continental shelf with a focus on the dominant polychaete, polygordius jouinae
Descriptive
TitleInfo
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Title
Processes affecting macrofaunal community structure in sandy sediments on the New Jersey inner continental shelf with a focus on the dominant polychaete, polygordius jouinae
Name
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NamePart
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Ramey
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Patricia Ann
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Patricia Ann Ramey
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author
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(type = family)
Grassle
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Fred
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Advisory Committee
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Fred J Grassle
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chair
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Grassle
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Judy
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Advisory Committee
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Judy P Grassle
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co-chair
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(type = family)
Smouse
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Peter
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Advisory Committee
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Peter Smouse
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internal member
Name
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(type = family)
Taghon
NamePart
(type = given)
Gary
Affiliation
Advisory Committee
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Gary Taghon
Role
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(authority = RULIB)
internal member
Name
(type = personal)
NamePart
(type = family)
Fiege
NamePart
(type = given)
Dieter
Affiliation
Advisory Committee
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Dieter Fiege
Role
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(authority = RULIB)
outside member
Name
(type = corporate)
NamePart
Rutgers University
Role
RoleTerm
(authority = RULIB)
degree grantor
Name
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NamePart
Graduate School - New Brunswick
Role
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(authority = RULIB)
school
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Text
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theses
OriginInfo
DateCreated
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2008
DateOther
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(type = degree)
2008-01
Language
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English
PhysicalDescription
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electronic
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application/pdf
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text/xml
Extent
xii, 201 pages
Abstract
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Continental shelves contain a rich array of habitats that appear significant for macrofauna and play an essential role in managing living resources. Yet, many habitats have not been adequately defined or quantified, temporally or spatially. Macrofaunal communities were examined at spatial and temporal scales within the context of known distributions of topographic habitats and associated sediment properties on the shelf off New Jersey, USA (39° 28' N, 74° 15' W). Focusing on a dominant polychaete, species identification and natural history information, together with manipulative experiments on behavior and habitat selection, provided a multi-pronged approach to research. Nested sampling designs were employed. Samples taken at large-spatial scales (m-km) showed that community differences were most pronounced among sampling dates, however, on any single date differences were related to crests and troughs in the rippled sandbeds. At small-scales (cm-m) community patterns and sediment properties corresponded with crests, flanks, and troughs. Concentrations of organic matter associated with finer sediments in troughs were ~1.2 times higher than in crests and flanks. Density of P. jouinae Ramey, Fiege and Leander, 2006, was higher in troughs than in crests. This species appears to thrive in sandy sediments from Massachusetts to southern New Jersey. The reproductive period occurred from May-August. Individuals that spawn, live for one year. Recruitment begins no later than July. The smallest individual was 2.01 mm long providing an estimate of size at initial recruitment. It was hypothesized that heterogeneity in organic matter generated by rippled beds may influence small-scale distribution patterns of P. jouinae. In a racetrack flume under realistic flow, almost all P. jouinae moved through the sediment to patches containing higher amounts of organic matter in 48-h. Subsequent experiments showed that locating organic patches was not the consequence of a directed search. Rate of movement indicated that P. jouniae could potentially travel the wavelength of a typical ripple (14-30 cm) in 35-75 min. Thus subsurface movement is a plausible mechanism accounting for the similar small-scale spatial distributions of P. jouinae and food resources. This research reveals the fundamental influence of topographic differences in habitats on a member of the benthic macrofaunal community.
Note
(type = degree)
Ph.D.
Note
(type = bibliography)
Includes bibliographical references (p. 186-199).
Subject
(authority = RUETD)
Topic
Ecology and Evolution
Subject
(authority = ETD-LCSH)
Topic
Marine animals--Atlantic States
Subject
(authority = ETD-LCSH)
Topic
Benthos--Ecology--Atlantic States
Subject
(authority = ETD-LCSH)
Topic
Polychaeta
Subject
(authority = ETD-LCSH)
Topic
Marine ecology
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TitleInfo
Title
Graduate School - New Brunswick Electronic Theses and Dissertations
Identifier
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rucore19991600001
Identifier
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http://hdl.rutgers.edu/1782.2/rucore10001600001.ETD.17216
Identifier
ETD_616
Identifier
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doi:10.7282/T39P320R
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NjNbRU
Subject
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Geographic
New Jersey
Genre
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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
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Name
Patricia Ramey
Role
Copyright holder
Affiliation
Rutgers University. Graduate School - New Brunswick
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Permission or license
Detail
Non-exclusive ETD license
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License
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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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