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Full-Text Articles in Life Sciences
Spatial Patterns In Host-Associated And Free-Living Bacterial Communities Across Six Temperate Estuaries, Alessandra L. Suzzi, Michael Stat, Troy F. Gaston, Megan J. Huggett
Spatial Patterns In Host-Associated And Free-Living Bacterial Communities Across Six Temperate Estuaries, Alessandra L. Suzzi, Michael Stat, Troy F. Gaston, Megan J. Huggett
Research outputs 2022 to 2026
A major goal of microbial ecology is to establish the importance of spatial and environmental factors in driving community variation. Their relative importance likely varies across spatial scales, but focus has primarily been on free-living communities within well-connected aquatic environments rather than less connected island-like habitats such as estuaries, and key host-associated communities within these systems. Here we sampled both free-living (seawater and sediment) and host-associated (estuarine fish hindgut microbiome, Pelates sexlineatus) communities across six temperate Australian estuaries spanning ∼500 km. We find that spatial and environmental factors have different influences on these communities, with seawater demonstrating strong distance-decay relationships …
Elevated Estuary Water Temperature Drives Fish Gut Dysbiosis And Increased Loads Of Pathogenic Vibrionaceae, Alessandra L. Suzzi, Michael Stat, Troy F. Gaston, Nachshon Siboni, Nathan L. R. Williams, Justin R. Seymour, Megan J. Huggett
Elevated Estuary Water Temperature Drives Fish Gut Dysbiosis And Increased Loads Of Pathogenic Vibrionaceae, Alessandra L. Suzzi, Michael Stat, Troy F. Gaston, Nachshon Siboni, Nathan L. R. Williams, Justin R. Seymour, Megan J. Huggett
Research outputs 2022 to 2026
Marine water temperatures are increasing globally, with eastern Australian estuaries warming faster than predicted. There is growing evidence that this rapid warming of coastal waters is increasing the abundance and virulence of pathogenic members of the Vibrionaceae, posing a significant health risk to both humans and aquatic organisms. Fish disease, notably outbreaks of emerging pathogens in response to environmental perturbations such as heatwaves, have been recognised in aquaculture settings. Considerably less is known about how rising sea surface temperatures will impact the microbiology of wild fish populations, particularly those within estuarine systems that are more vulnerable to warming. We used …
Carbon Storage And Preservation In Seagrass Meadows, Mohammad Rozaimi Jamaludin
Carbon Storage And Preservation In Seagrass Meadows, Mohammad Rozaimi Jamaludin
Theses: Doctorates and Masters
Seagrass meadows are important ‘Blue Carbon’ sinks but many questions remain unaddressed in regards to the organic carbon (OC) sequestration capacity and processes leading to retention and persistence of OC in seagrass sediments. The research summarised in this dissertation examined 37 sediment cores from twelve Australian seagrass meadows (Posidonia australis and Halophila ovalis) in order to improve our understanding of OC storage and preservation in seagrass sediments. The research: quantified the OC storage in seagrass meadows and the reduction in stores after ecosystem degradation; the rates of OC accumulation; the roles of species composition and the depositional nature …