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Full-Text Articles in Marine Biology
Florida's Pillar Coral (Dendrogyra Cylindrus): The Roles Of The Holobiont Partners In Bleaching, Recovery, And Disease Processes, Cynthia Fairbank Lewis
Florida's Pillar Coral (Dendrogyra Cylindrus): The Roles Of The Holobiont Partners In Bleaching, Recovery, And Disease Processes, Cynthia Fairbank Lewis
FIU Electronic Theses and Dissertations
The iconic pillar coral, Dendrogyra cylindrus, is one of five Caribbean species listed in 2014 under the US Federal Endangered Species Act because of its extreme low abundance and continued decline in US waters. Until recently, little was known about the demographics or genetic diversity of Florida’s D. cylindrus population. This study represents the first time two holobiont partners (coral animal and associated photosynthetic algal endosymbionts) have been closely examined, spatially and temporally, in this little-studied species. The aim was to explore the influences of coral animal genotypes, mutualistic photosynthetic algal strains, and hyperthermal stress on bleaching and …
Acclimatization Of The Tropical Reef Coral Acropora Millepora To Hyperthermal Stress, Anthony John Bellantuono
Acclimatization Of The Tropical Reef Coral Acropora Millepora To Hyperthermal Stress, Anthony John Bellantuono
FIU Electronic Theses and Dissertations
The demise of reef-building corals potentially lies on the horizon, given ongoing climate change amid other anthropogenic environmental stressors. If corals cannot acclimatize or adapt to changing conditions, dramatic declines in the extent and health of the living reefs are expected within the next half century. The primary and proximal global threat to corals is climate change. Reef-building corals are dependent upon a nutritional symbiosis with photosynthetic dinoflagellates belonging to the group Symbiodinium. The symbiosis between the cnidarian host and algal partner is a stress-sensitive relationship; temperatures just 1°C above normal thermal maxima can result in the breakdown of …
Disturbance Driven Colony Fragmentation As A Driver Of A Coral Disease Outbreak, Marilyn E. Brandt, Tyler B. Smith, Adrienne M.S. Correa, Rebecca Vega-Thurber
Disturbance Driven Colony Fragmentation As A Driver Of A Coral Disease Outbreak, Marilyn E. Brandt, Tyler B. Smith, Adrienne M.S. Correa, Rebecca Vega-Thurber
Department of Biological Sciences
In September of 2010, Brewer's Bay reef, located in St. Thomas (U.S. Virgin Islands), was simultaneously affected by abnormally high temperatures and the passage of a hurricane that resulted in the mass bleaching and fragmentation of its coral community. An outbreak of a rapid tissue loss disease among coral colonies was associated with these two disturbances. Gross lesion signs and lesion progression rates indicated that the disease was most similar to the Caribbean coral disease white plague type 1. Experiments indicated that the disease was transmissible through direct contact between colonies, and five-meter radial transects showed a clustered spatial distribution …
Coral Thermal Tolerance: Tuning Gene Expression To Resist Thermal Stress, Anthony J. Bellatuono, Camila Granados-Cifuentes, David J. Miller, Ove Hoegh-Guldberg, Mauricio Rodriguez-Lanetty
Coral Thermal Tolerance: Tuning Gene Expression To Resist Thermal Stress, Anthony J. Bellatuono, Camila Granados-Cifuentes, David J. Miller, Ove Hoegh-Guldberg, Mauricio Rodriguez-Lanetty
Department of Biological Sciences
The acclimatization capacity of corals is a critical consideration in the persistence of coral reefs under stresses imposed by global climate change. The stress history of corals plays a role in subsequent response to heat stress, but the transcriptomic changes associated with these plastic changes have not been previously explored. In order to identify host transcriptomic changes associated with acquired thermal tolerance in the scleractinian coralAcropora millepora, corals preconditioned to a sub-lethal temperature of 3°C below bleaching threshold temperature were compared to both non-preconditioned corals and untreated controls using a cDNA microarray platform. After eight days of hyperthermal …
Development Of Gene Expression Markers Of Acute Heat-Light Stress In Reef-Building Corals Of The Genus Porites, Carly D. Kenkel, Galina Aglyamova, Ada Alamaru, Ranjeet Bhagooli, Roxana Capper, Ross Cunning, Amanda Devillers, Joshua A. Haslun, Laetitia Hédouin, Shashank Keshavmurthy, Kristin Kuehl, Huda Mahmoud, Elizabeth S. Mcginty, Phanor H. Montoya-Maya, Caroline V. Palmer, Raffaella Pantile, Juan A. Sánchez, Tom Schils, Rachel N. Silverstein, Logan B. Squiers, Pei-Ciao Tang, Tamar L. Goulet, Mikhail V. Matz
Development Of Gene Expression Markers Of Acute Heat-Light Stress In Reef-Building Corals Of The Genus Porites, Carly D. Kenkel, Galina Aglyamova, Ada Alamaru, Ranjeet Bhagooli, Roxana Capper, Ross Cunning, Amanda Devillers, Joshua A. Haslun, Laetitia Hédouin, Shashank Keshavmurthy, Kristin Kuehl, Huda Mahmoud, Elizabeth S. Mcginty, Phanor H. Montoya-Maya, Caroline V. Palmer, Raffaella Pantile, Juan A. Sánchez, Tom Schils, Rachel N. Silverstein, Logan B. Squiers, Pei-Ciao Tang, Tamar L. Goulet, Mikhail V. Matz
Department of Biological Sciences
Coral reefs are declining worldwide due to increased incidence of climate-induced coral bleaching, which will have widespread biodiversity and economic impacts. A simple method to measure the sub-bleaching level of heat-light stress experienced by corals would greatly inform reef management practices by making it possible to assess the distribution of bleaching risks among individual reef sites. Gene expression analysis based on quantitative PCR (qPCR) can be used as a diagnostic tool to determine coral condition in situ. We evaluated the expression of 13 candidate genes during heat-light stress in a common Caribbean coral Porites astreoides, and observed strong …