Abstract/Details

Determination of the fine scale, temporal pattern of larval release by female blue crabs and application of this information to mathematical models of larval dispersal and recruitment


2006 2006

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Abstract (summary)

In recent years considerable advances have been made in the mathematical models that simulate larval transport in coastal and estuarine species. One of these models (ECOM3d) coupled to a particle transport model has been used to analyze the dispersal and recruitment of blue crab larvae (Callinectes sapidus) in the Delaware Bay. Larval development in C. sapidus is planktonic and includes seven zoeal stages and a single megalopal stage. Larval dispersal is accomplished by the zoeal stages and occurs in the coastal ocean. Recruitment to juvenile habitat is carried out by the megalopal stage and occurs within the estuary. Thus, successful recruitment requires transport of megalopae from the coastal ocean to the estuary.

The ECOM-3d model is driven by the physical processes of wind, tides, and freshwater outflow. In our application, ECOM-3d has been coupled to a separate particle transport model that treats blue crab larvae as passive particles. Preliminary application of the coupled transport model has resulted in successful reproduction of the occurrence of megalopal settlement events in Delaware Bay. (Abstract shortened by UMI.)

Indexing (details)


Subject
Ecology;
Oceanography
Classification
0329: Ecology
0416: Oceanography
Identifier / keyword
Biological sciences
Title
Determination of the fine scale, temporal pattern of larval release by female blue crabs and application of this information to mathematical models of larval dispersal and recruitment
Author
Kernehan, Colleen D.
Number of pages
74
Publication year
2006
Degree date
2006
School code
0060
Source
MAI 44/06M, Masters Abstracts International
Place of publication
Ann Arbor
Country of publication
United States
ISBN
9780542725203
Advisor
Epifanio, Charles
University/institution
University of Delaware
University location
United States -- Delaware
Degree
M.S.
Source type
Dissertations & Theses
Language
English
Document type
Dissertation/Thesis
Dissertation/thesis number
1435933
ProQuest document ID
305324817
Copyright
Database copyright ProQuest LLC; ProQuest does not claim copyright in the individual underlying works.
Document URL
http://search.proquest.com/docview/305324817
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