Persistent Legacy Effects of Marine Heatwaves on Coral Symbioses. [PDF]
The algal symbionts hosted by Platygyra ryukyuensis corals on Kiritimati Island were distributed according to their exposure to local human disturbance before an extreme marine heatwave (1). The symbionts hosted by corals underwent a major shift as a result of this acute heatwave disturbance, with transient symbionts detected in corals at less turbid ...
Buzzoni D +3 more
europepmc +2 more sources
Resolving widespread and endemic dinoflagellates (Symbiodiniaceae) mutualistic with Indo-Pacific octocorals reveals differences in specificity based on host phylogeny. [PDF]
Abstract Endosymbionts in the dinoflagellate family Symbiodiniaceae can form mutualisms with a diverse array of host invertebrates, constituting a widespread and ecologically important family. While those associated with reef‐building corals (order Scleractinia) have received considerable research attention, the diversity and ecology of zooxanthellae ...
Butler CC +3 more
europepmc +2 more sources
Rapid Evolution in a Coral Population Following a Mass Mortality Event. [PDF]
ABSTRACT Globally, corals face an increased frequency of mass mortality events (MMEs) as populations experience repeated marine heatwaves which disrupt their obligate algal symbiosis. Despite greater occurrences of MMEs, the relative roles of the environment, host, and symbiont genetic variation in survival, subsequent recovery, and carry‐over effects ...
Fifer JE +9 more
europepmc +2 more sources
Algal Symbionts Indicate Heatwave Vulnerability in Corals From Hotspots but Not From Thermal Refugia. [PDF]
ABSTRACT Reef‐building corals face continued declines due to climate change‐amplified marine heatwaves. In addition to affecting coral heat tolerance, corals' algal endosymbionts (family Symbiodiniaceae) can reflect their prior heatwave exposure, although understanding is often limited to heatwave‐induced shifts between symbiont genera.
Buzzoni D +11 more
europepmc +2 more sources
Marine Heatwaves Transform Coral Symbioses With Enduring Effects. [PDF]
Marine heatwaves are disrupting coral–algal symbioses, yet their long‐term effects remain poorly understood. Using a decade‐long survey (2013–2023), we document a lasting transformation of symbiont assemblages, evidence of a local symbiont extinction, and indications that local human disturbance may impede symbiont recovery following a major marine ...
Van Nynatten A +3 more
europepmc +2 more sources
Concordant Patterns of Population Genetic Structure and Symbiont Communities in a Broadcasting Spawning Coral Along a Western Australian Fringing Reef. [PDF]
We explored fine‐scale patterns of connectivity and symbiont associations across the Ningaloo reefscape to inform on post‐disturbance recovery, larval dispersal capabilities, and recruitment dynamics. We detected low but significant population genetic structure among sample sites spread across Ningaloo Reef with the highest diversity in southern sites.
Duffy SL +3 more
europepmc +2 more sources
Building consensus around the assessment and interpretation of Symbiodiniaceae diversity [PDF]
Within microeukaryotes, genetic variation and functional variation sometimes accumulate more quickly than morphological differences. To understand the evolutionary history and ecology of such lineages, it is key to examine diversity at multiple levels of
Baker Andrew C. +60 more
core +9 more sources
Nitrogen availability improves the physiological resilience of coral endosymbiont Cladocopium goreaui to high temperature [PDF]
The physiological response of symbiotic Symbiodiniaceae to high temperature is believed to result in coral bleaching. However, the potential effect of nitrogen availability on heat acclimatization of symbiotic Symbiodiniaceae is still unclear. In this study, physiological responses of Symbiodiniaceae Cladocopium goreaui to temperature and nitrogen ...
Zhi Zhou +8 more
openaire +2 more sources
Functional analyses of bacterial genomes found in Symbiodiniaceae genome assemblies. [PDF]
Bacterial–algal interactions strongly influence marine ecosystems. Bacterial communities in cultured dinoflagellates of the family Symbiodiniaceae have been characterized by metagenomics.
Shoguchi E +3 more
europepmc +3 more sources
The role of nutrients in coral bleaching [PDF]
Luke Morris investigated the role of nutrients in coral bleaching. While he found that environmental nutrients do not substantially influence heat tolerance, nutritional destabilisation of the coral-algal symbiosis was integral to explaining coral ...
Morris, Luke Aaron
core +1 more source

