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ABSTRACT: Characterising the mycobiome of healthy and wounded reef sharks in the Seychelles archipelago

PROVIDER: PRJNA1155150 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR30589200_1.fastq.gz	Fastqsanger.gz
	SRR30589200_2.fastq.gz	Fastqsanger.gz
	SRR30589201_1.fastq.gz	Fastqsanger.gz
	SRR30589201_2.fastq.gz	Fastqsanger.gz
	SRR30589202_1.fastq.gz	Fastqsanger.gz

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Project description:<p>Coral reef ecosystems are incredibly diverse marine biomes that rely on nutrient cycling by microorganisms to sustain high productivity in generally oligotrophic regions of the ocean. Understanding the composition of extracellular reef metabolites in seawater, the small organic molecules that serve as the currency for microorganisms, may provide insight into benthic-pelagic coupling as well as the complexity of nutrient cycling in coral reef ecosystems. Jardines de la Reina, Cuba is an ideal environment to examine extracellular metabolites across protected and high-quality reefs. Here, we used metabolic methods to quantify specific known metabolites of interest (targeted approach) and to survey trends in metabolite feature composition (untargeted approach) from surface and reef depth (6 – 14 m) seawater overlying forereefs in Jardines de la Reina. We found that untargeted metabolite feature composition was fairly similar between reef depth and surface seawater across the archipelago, corresponding with other biogeochemical and physicochemical measurements and suggesting that environmental conditions were largely homogenous across forereefs within Jardines de la Reina. Additionally, we quantified 32 of 53 detected metabolites, including amino acids, nucleosides, vitamins, and other metabolic intermediates. Two of the quantified metabolites, riboflavin and 5ʹ-methylthioadenosine (MTA), displayed interesting trends by depth and geographic location, respectively. Riboflavin concentrations were higher in reef depth compared to surface seawater, suggesting that riboflavin may be produced by reef organisms at depth and degraded in the surface through photochemical oxidation. 5ʹ-MTA concentrations increased significantly within the central region of the archipelago, displaying biogeographic patterns that warrant further investigation. Here we lay the groundwork for future investigations of variations in metabolite composition across reefs, sources and sinks of reef metabolites, and changes in metabolites over environmental, temporal, and reef health gradients.</p>

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