Flexibility in Red Sea <i>Tridacna maxima</i>‐Symbiodiniaceae associations supports environmental niche adaptation

Rossbach, Susann; Hume, Benjamin C. C.; Cárdenas, Anny; Perna, Gabriela; Voolstra, Christian R.; Duarte, Carlos M.

doi:10.1002/ece3.7299

Cited by 8 publications

(19 citation statements)

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“…Several marine microorganisms, including, algae and bacteria, have been shown to live in a symbiotic association with T. maxima (Rossbach et al, 2019;Rossbach et al, 2021). Here, we have identified several metabolites that are possibly associated with microorganisms that live within T. maxima holobiont.…”

Section: Discussionmentioning

confidence: 87%

“…Hence, giant clams can be considered as a metaorganism (holobiont), a complex community of different species (Bosch and Miller, 2016), in which the microbial, symbiotic partners mediate biochemical transformations that can influence host performance and survival (McFall-Ngai et al, 2013). Although previous studies have assessed the diversity of their symbiotic partners (Rossbach et al, 2019;Guibert et al, 2020b;Rossbach et al, 2021), it remains unclear how these relationships can affect their physiology, health, nutritional and environmental well-being.…”

Section: Introductionmentioning

confidence: 99%

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Metabolomic Study on Tridacna maxima Giant Clams Reveals Metabolic Fingerprint of Environmental Pollutants

et al. 2022

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Metabolite profiling of marine invertebrates, such as bivalve mollusks, may not only provide insights into the health state of an individual holobiont, but also the pollution levels of their environment Here, we combined 1H nuclear magnetic responance (NMR) spectroscopy and mass spectrometry (MS)-based metabolomics techniques to investigate the organ-specific metabolomic profiles of Tridacna maxima giant clams. Clams were collected from across-shelf gradient in the Red Sea, from inshore to off-shore. We unequivocally profiled 306 metabolites and observed that the sampling location had minimal effects on metabolite composition. However, we observed significant differences in metabolite profiles among different organs (i.e., gills, mantle organ, and digestive system). Importantly, in addition to endogenous metabolites, we detected the presence of terephthalic acid and isophthalic acid, which likely originate from marine plastic ingestion. Collectively, our study opens opportunities for a deeper understanding of Tridacna maxima physiology through metabolomics, and illustrates the power of invertebrate metabolite profiling for monitoring plastic-related aquatic pollutants.

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Section: Discussionmentioning

confidence: 87%

Section: Introductionmentioning

confidence: 99%

Metabolomic Study on Tridacna maxima Giant Clams Reveals Metabolic Fingerprint of Environmental Pollutants

et al. 2022

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“…Studying macroscale communities can provide insights into cnidarian-Symbiodiniaceae dynamics along environmental gradients (Cunning et al, 2015;Rossbach et al, 2021;Silverstein et al, 2011;Terraneo et al, 2019). Regional macroscale Symbiodiniaceae community structure (i.e., beta diversity) may also reflect chronic disturbance from anthropogenic activity (Claar et al, 2020a) and help identify more resilient or resistant reefs (Ziegler et al, 2015).…”

Section: Why Study Symbiodiniaceae Community Diversity?mentioning

confidence: 99%

Building Consensus around the Assessment and Interpretation of Symbiodiniaceae Diversity

Davies¹,

Gamache²,

Howe‐Kerr³

et al. 2022

Preprint

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Within microeukaryotes, genetic 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 organization. In the dinoflagellate family Symbiodiniaceae, which can form endosymbioses with cnidarians (e.g., corals, octocorals, sea anemones, jellies), other marine invertebrates (e.g., sponges, molluscs, flatworms), and protists (e.g., foraminifera), molecular data have been used extensively over the past three decades to describe phenotypes and to make evolutionary and ecological inferences. Despite advances in Symbiodiniaceae genomics, a lack of consensus among researchers with respect to interpreting genetic data has slowed progress in the field and acted as a barrier to reconciling observations. Here, we identify key challenges regarding the assessment and interpretation of Symbiodiniaceae genetic diversity across three levels: species, populations, and communities. We summarize areas of agreement and highlight techniques and approaches that are broadly accepted. In areas where debate remains, we identify unresolved issues and discuss technologies and approaches that can help to fill knowledge gaps related to genetic and phenotypic diversity. We also discuss ways to stimulate progress, in particular by fostering a more inclusive and collaborative research community. We hope that this perspective will inspire and accelerate coral reef science by serving as a resource to those designing experiments, publishing research, and applying for funding related to Symbiodiniaceae and their symbiotic partnerships.

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“…Giant clams (Cardiidae: Tridacninae) are iconic animals of Indo-Pacific coral reefs, which help to maintain the overall reef biodiversity and functionality by contributing to the reef carbonate structure and serving various ecosystem functions 1 – 4 . Because of their great importance for community dynamics, stability and diversity, conservation and preservation of such “key(stone)” species have shifted into the focus of recent conservation strategies 2 .…”

Section: Introductionmentioning

confidence: 99%

“…Unlike most other bivalves, but similar to most reef-building corals, the species of the Tridacninae host symbiotic dinoflagellate photoautotrophs of the Symbiodinaceae family 3 , 4 . These symbionts contribute significantly to the energy budget of the host and encourage the large shell growth 3 , 4 , with the largest shells reaching > 1 m length 5 . Light availability is thus essential for giant clam growth and survival 3 , 4 .…”

Section: Introductionmentioning

confidence: 99%

Giant clam (Tridacna) distribution in the Gulf of Oman in relation to past and future climate

Reuter

Spreter

Brachert

et al. 2022

Sci Rep

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The Oman upwelling zone (OUZ) creates an unfavorable environment and a major biogeographic barrier for many coral reef species, such as giant clams, thus promoting and maintaining faunal differences among reefs on the east and west side of the Arabian Peninsula. We record the former existence of Tridacna in the Gulf of Oman and review its stratigraphic distribution in the Persian Gulf to provide new insights on the connectivity of coral reef habitats around southern Arabia under changing climate and ocean conditions. Fossil shells were carbon-14 dated and employed as sclerochronological proxy archives. This reveals that the Omani population represents a last glacial colonization event during the Marine Isotope Stage 3 interstadial under colder-than-present temperatures and variable upwelling intensity linked to Dansgaard-Oeschger climate oscillations. It was favored by temperatures just above the lower threshold for the habitat-forming reef coral communities and instability of the upwelling barrier. We conclude that the distribution of Tridacna in the northern Arabian Sea is generally limited by either strong upwelling or cool sea surface temperature under gradually changing climate conditions at the interglacial-glacial scale. Opportunities for dispersal and temporary colonization existed only when there was a simultaneous attenuation of both limiting factors due to high-frequency climate variability. The OUZ will unlikely become a future climate change refuge for giant clams because they will be exposed either to thermal stress by rapid anthropogenic Indian Ocean warming or to unfavorable upwelling conditions.

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Flexibility in Red Sea Tridacna maxima‐Symbiodiniaceae associations supports environmental niche adaptation

Abstract: This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

Cited by 8 publications

References 84 publications

Metabolomic Study on Tridacna maxima Giant Clams Reveals Metabolic Fingerprint of Environmental Pollutants

Metabolomic Study on Tridacna maxima Giant Clams Reveals Metabolic Fingerprint of Environmental Pollutants

Building Consensus around the Assessment and Interpretation of Symbiodiniaceae Diversity

Giant clam (Tridacna) distribution in the Gulf of Oman in relation to past and future climate

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