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Ireland’s unseen majority – microbial diversity of the seabed

O'Reilly, Shane S. and Flanagan, Paul and Frau, Allessandra and Pentlavalli, Prasanna and Monteys, Xavier and Allen, Christopher and Kelleher, Brian (2013) Ireland’s unseen majority – microbial diversity of the seabed. In: Atlantic Ireland 2013 Conference, 11 Nov 2013, Dublin, Ireland.

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Despite their size, prokaryote (bacteria and archaea) biomass is estimated to represent between 15 and 30% of total living biomass1,2. Prokaryotes play major roles in marine ecosystems and in global biogeochemical cycling3,4. Molecular phylogenetic approaches have revolutionised microbiology and have revealed that the complexity of microbial life is orders of magnitude greater than previous estimates based on cultivation-based approaches5. This highlights how little we currently know about the microbial world and the clear potential of this vast untapped resource for human application. Here we present the first in-depth analysis of microbial community diversity and composition in the Irish Sea. The western Irish Sea is characterised by distinct hydrographic conditions, resulting in summer stratified offshore deeper waters and settling of fine mud, while well-mixed waters and coarser sediment type dominate in the south and coastal regions. We wished to assess whether these factors play a role in prokaryote abundance and diversity.

Item Type:Conference or Workshop Item (Poster)
Event Type:Conference
Uncontrolled Keywords:Prokaryote biomass; Irish Sea
Subjects:Biological Sciences > Microbiology
Physical Sciences > Environmental chemistry
DCU Faculties and Centres:DCU Faculties and Schools > Faculty of Science and Health > School of Chemical Sciences
Official URL:
Use License:This item is licensed under a Creative Commons Attribution-NonCommercial-Share Alike 3.0 License. View License
ID Code:20027
Deposited On:17 Jul 2014 11:26 by Brian Kelleher. Last Modified 26 Oct 2016 15:20

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