Selective Breeding to Enhance the Adaptive Potential of Corals

Coral reefs of the world, Journal Year: 2022, Volume and Issue: unknown, P. 71 - 84

Published: Jan. 1, 2022

Language: Английский

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Bio-optical signatures of in situ photosymbionts predict bleaching severity prior to thermal stress in the Caribbean coral species Acropora palmata

Coral Reefs, Journal Year: 2024, Volume and Issue: 43(1), P. 151 - 164

Published: Jan. 18, 2024

Language: Английский

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Loss of coral thermotolerance following year-long in situ nursery propagation with a consecutively high summer heat-load

Coral Reefs, Journal Year: 2024, Volume and Issue: 43(4), P. 919 - 933

Published: June 8, 2024

Abstract Exposure to more frequent ocean warming events is driving the loss of coral reef cover as window recovery between episodes bleaching reduces. Coral propagation via in situ nurseries and subsequent outplanting have increased worldwide support replenishing on degraded reefs. However, challenges identifying fast-growing bleaching-resistant target corals limited how informative we can be regarding resilience outplanted corals. Here, employed short-term thermal stress assays using Bleaching Automated Stress System (CBASS) assess threshold a pre- post-propagation nursery frames. We show that year-long nursery-propagated exhibit statistically significant reduction thresholds (i.e., ED50s) compared their corresponding reef-based donor colonies based dose–response modelling dark acclimated photosynthetic efficiency. RNA-Seq was then used underlying drivers this thermotolerance reduction, processes involved metabolic oxidative management were disrupted versus heat-treated Whether trade-offs during potential growth-focused phases (post-fragmentation), conditions, and/or consecutively high summer heat-load drove lower capacity remains determined. expressed genes associated with telomere maintenance, which are typically stress-sensitive under seasonal environmental stress, suggesting heat-loading contributed observed patterns. Our results highlight tolerance (i) variable (ii) subject acclimation varying degrees across colonies. Thus, path forward for practitioners improve efforts may entail initial screening larger population from thermally superior selected propagation.

Language: Английский

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Larval thermal conditioning does not improve post-settlement thermal tolerance in the dominant reef-building coral, Montipora capitata

Coral Reefs, Journal Year: 2022, Volume and Issue: 41(2), P. 333 - 342

Published: Feb. 18, 2022

Language: Английский

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Assessing how metal reef restoration structures shape the functional and taxonomic profile of coral-associated bacterial communities

Frontiers in Marine Science, Journal Year: 2024, Volume and Issue: 11

Published: April 26, 2024

Significant threats to the long-term persistence of coral reefs have accelerated adoption propagation and out-planting approaches. However, how materials commonly used for structures could potentially affect coral-associated bacterial communities remains untested. Here, we examined impact metal on communities. Fragments species Acropora millepora were grown aluminium, sand/epoxy-coated steel (Reef Stars), uncoated (rebar) structures. After 6 months, functional taxonomic profiles propagated corals reef colonies characterised using amplicon (16S rRNA gene) shotgun metagenomic sequencing. No differences in phylogenetic structure or profile observed between colonies. specific genes pathways (e.g., lipid, nucleotide, carbohydrate metabolism) overrepresented different materials, taxa indicative materials. These findings indicate that may lead individual potential communities, but these contribute changed holobiont fitness presents a key question be addressed.

Language: Английский

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