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Climate-modulated volume transport through the coral triangle and its impacts on larval connectivity
Descriptive
TitleInfo
Title
Climate-modulated volume transport through the coral triangle and its impacts on larval connectivity
Name
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Lietzke
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Sarah
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1990-
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Sarah Lietzke
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author
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Haidvogel
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Dale B
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Dale B Haidvogel
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Advisory Committee
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chair
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Munroe
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Daphne
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Daphne Munroe
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Advisory Committee
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internal member
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Curchitser
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Enrique
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Enrique Curchitser
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Advisory Committee
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internal member
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Xue
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Huijie
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Huijie Xue
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Advisory Committee
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outside member
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Rutgers University
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degree grantor
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School of Graduate Studies
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Text
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theses
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2019
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2019-01
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2019
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xx
Language
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eng
Abstract
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Possessing complex bathymetry and regional circulation, the Coral Triangle (CT) is also the epicenter of marine biodiversity. Understanding regional circulation and the effects of intra-annual, seasonal and interannual processes on this circulation has important ramifications for larval transport, particularly in the context of changing climate. Using the Coral Triangle implementation of the Regional Ocean Modeling System (CT-ROMS), volume transport time series are assessed at 30 key passages throughout the region. Generally, seasonality seems to be the main modulator of volume transport along the South China Sea Throughflow (SCSTF), while the Indonesian Throughflow (ITF) volume transport is primarily influenced by interannual and secular changes in circulation. However, a ridge regression model which uses El Niño Southern Oscillation (ENSO), Indian Ocean Dipole (IOD) and Pacific Decadal Oscillation (PDO) as explanatory variables is able to explain a significant portion of the volume transport through SCSTF passages.
Many oceanic species have larval stages which behave similarly to passive particles; being able to track these passive particles and understand where they might go under certain oceanic conditions provides us information that researchers cannot easily obtain in situ. TRACMASS, an offline particle tracking code, is used to track passive particles for 20, 40, 60, 80, and 100 days in order to assess decadal and interannual variability in particle retention, and the ability of particular ecoregions to function as particle sources and sinks along the South China Sea Returnflow (SCSRF) and the ITF. Due to the complexity in regional circulation, results are often localized to particular ecoregions. However, particle retention is generally higher during El Niño conditions along the SCSRF and during the 1980s along the ITF. Generally, our results highlight the need for networks of Marine Protected Areas (MPAs) and dynamic MPAs including temporary, migratory, zoned and gear-restricted MPAs. In order for any of these management strategies to be successful, the social and political challenges of a given location need to be considered, and representatives of all stakeholder groups need to be included in management decisions.
Many oceanic species have larval stages which behave similarly to passive particles; being able to track these passive particles and understand where they might go under certain oceanic conditions provides us information that researchers cannot easily obtain in situ. TRACMASS, an offline particle tracking code, is used to track passive particles for 20, 40, 60, 80, and 100 days in order to assess decadal and interannual variability in particle retention, and the ability of particular ecoregions to function as particle sources and sinks along the South China Sea Returnflow (SCSRF) and the ITF. Due to the complexity in regional circulation, results are often localized to particular ecoregions. However, particle retention is generally higher during El Niño conditions along the SCSRF and during the 1980s along the ITF. Generally, our results highlight the need for networks of Marine Protected Areas (MPAs) and dynamic MPAs including temporary, migratory, zoned and gear-restricted MPAs. In order for any of these management strategies to be successful, the social and political challenges of a given location need to be considered, and representatives of all stakeholder groups need to be included in management decisions.
Subject
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Topic
Oceanography
Subject
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Topic
Ocean circulation--Coral Triangle
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Rutgers University Electronic Theses and Dissertations
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ETD_9518
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electronic resource
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application/pdf
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Extent
1 online resource (168 pages) : illustrations
Note
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Ph.D.
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Includes bibliographical references
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by Sarah Lietzke
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School of Graduate Studies Electronic Theses and Dissertations
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rucore10001600001
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NjNbRU
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doi:10.7282/t3-m77g-ey33
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(authority = ExL-Esploro)
ETD doctoral
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Rights
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The author owns the copyright to this work.
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Name
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Lietzke
GivenName
Sarah
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Permission or license
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2019-01-09 15:10:42
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Sarah Lietzke
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Rutgers University. School of Graduate Studies
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Author Agreement License
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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
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2019-01-17T19:12:03
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