Diffusive transport and coral calcification: A comparative study of branching and plating morphologies under ocean acidification
Corals are sessile animals that are subject to their environment and have various colony morphologies that influence their diffusive boundary layer, a thin layer of fluid surrounding the coral surface. Boundary layer dynamics are crucial for corals to acquire nutrients from the environment, supporti...
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fttexasamucorpus:oai:tamucc-ir.tdl.org:1969.6/98101 2024-09-09T20:01:09+00:00 Diffusive transport and coral calcification: A comparative study of branching and plating morphologies under ocean acidification Herrera, Bryanna Noelle Bahr, Keisha D. Bogucki, Darek Hu, Xinping 2024-05-03 95 pages application/pdf https://hdl.handle.net/1969.6/98101 en_US eng https://hdl.handle.net/1969.6/98101 This material is made available for use in research, teaching, and private study, pursuant to U.S. Copyright law. The user assumes full responsibility for any use of the materials, including but not limited to, infringement of copyright and publication rights of reproduced materials. Any materials used should be fully credited with its source. All rights are reserved and retained regardless of current or future development or laws that may apply to fair use standards. Permission for publication of this material, in part or in full, must be secured with the author and/or publisher. boundary layer calcification microsensor profiles morphology ocean acidification Text Thesis 2024 fttexasamucorpus 2024-08-01T04:38:46Z Corals are sessile animals that are subject to their environment and have various colony morphologies that influence their diffusive boundary layer, a thin layer of fluid surrounding the coral surface. Boundary layer dynamics are crucial for corals to acquire nutrients from the environment, supporting essential functions like calcification. However, we lack knowledge regarding individual and species-specific responses to changes in water column conditions and how these changes can affect boundary layer dynamics and, consequently, calcification. Therefore, the purpose of this study is to incorporate engineering concepts to investigate drivers and connections between the physical and chemical controls on coral calcification in current and future predicted ocean acidification (OA) conditions. The Hawaiian rice coral, Montipora capitata, is a polymorphic coral with multiple growth forms, including branching, plating, and encrusting. Six branching and plating M. capitata colonies were collected, and three of each morphology were exposed to two different water chemistry conditions for two weeks. Microsensor profiles were conducted to measure boundary layer thickness and water chemistry changes, and a flume was designed and constructed to control water flow. The findings show that the plating morphology has a thicker boundary layer than the branching morphology at the site of primary photosynthesis. Moreover, at the site of primary photosynthesis, a significant difference in surface oxygen (O2) concentrations was observed between the two morphologies in ambient conditions, implying increased O2 efflux rates and coral productivity from a branching morphology. Life Sciences College of Science Thesis Ocean acidification Texas A&M University - Corpus Christi: DSpace Repository |
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Open Polar |
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Texas A&M University - Corpus Christi: DSpace Repository |
op_collection_id |
fttexasamucorpus |
language |
English |
topic |
boundary layer calcification microsensor profiles morphology ocean acidification |
spellingShingle |
boundary layer calcification microsensor profiles morphology ocean acidification Herrera, Bryanna Noelle Diffusive transport and coral calcification: A comparative study of branching and plating morphologies under ocean acidification |
topic_facet |
boundary layer calcification microsensor profiles morphology ocean acidification |
description |
Corals are sessile animals that are subject to their environment and have various colony morphologies that influence their diffusive boundary layer, a thin layer of fluid surrounding the coral surface. Boundary layer dynamics are crucial for corals to acquire nutrients from the environment, supporting essential functions like calcification. However, we lack knowledge regarding individual and species-specific responses to changes in water column conditions and how these changes can affect boundary layer dynamics and, consequently, calcification. Therefore, the purpose of this study is to incorporate engineering concepts to investigate drivers and connections between the physical and chemical controls on coral calcification in current and future predicted ocean acidification (OA) conditions. The Hawaiian rice coral, Montipora capitata, is a polymorphic coral with multiple growth forms, including branching, plating, and encrusting. Six branching and plating M. capitata colonies were collected, and three of each morphology were exposed to two different water chemistry conditions for two weeks. Microsensor profiles were conducted to measure boundary layer thickness and water chemistry changes, and a flume was designed and constructed to control water flow. The findings show that the plating morphology has a thicker boundary layer than the branching morphology at the site of primary photosynthesis. Moreover, at the site of primary photosynthesis, a significant difference in surface oxygen (O2) concentrations was observed between the two morphologies in ambient conditions, implying increased O2 efflux rates and coral productivity from a branching morphology. Life Sciences College of Science |
author2 |
Bahr, Keisha D. Bogucki, Darek Hu, Xinping |
format |
Thesis |
author |
Herrera, Bryanna Noelle |
author_facet |
Herrera, Bryanna Noelle |
author_sort |
Herrera, Bryanna Noelle |
title |
Diffusive transport and coral calcification: A comparative study of branching and plating morphologies under ocean acidification |
title_short |
Diffusive transport and coral calcification: A comparative study of branching and plating morphologies under ocean acidification |
title_full |
Diffusive transport and coral calcification: A comparative study of branching and plating morphologies under ocean acidification |
title_fullStr |
Diffusive transport and coral calcification: A comparative study of branching and plating morphologies under ocean acidification |
title_full_unstemmed |
Diffusive transport and coral calcification: A comparative study of branching and plating morphologies under ocean acidification |
title_sort |
diffusive transport and coral calcification: a comparative study of branching and plating morphologies under ocean acidification |
publishDate |
2024 |
url |
https://hdl.handle.net/1969.6/98101 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_relation |
https://hdl.handle.net/1969.6/98101 |
op_rights |
This material is made available for use in research, teaching, and private study, pursuant to U.S. Copyright law. The user assumes full responsibility for any use of the materials, including but not limited to, infringement of copyright and publication rights of reproduced materials. Any materials used should be fully credited with its source. All rights are reserved and retained regardless of current or future development or laws that may apply to fair use standards. Permission for publication of this material, in part or in full, must be secured with the author and/or publisher. |
_version_ |
1809932942269480960 |