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Title: Meta-analysis of the Pacific Oyster Microbiome: Characterizing Microbiome-Environment Associations and Core Tissue Microbiomes
Oysters are an integral part of many marine ecosystems. They provide food for several species of snails and crabs and act as natural water filters, preventing algal blooms and nutrient-induced oxygen depletion in aquatic ecosystems (eutrophication). Additionally, oyster reefs provide a habitat for several small fish and crustacean species. Lastly, they promote underwater vegetation growth, providing greater coastal resistance to erosion and protection against storms. In recognition of the significance of oysters in promoting marine biodiversity, countries such as the United States and Australia have invested millions of dollars in the restoration of oyster reefs along the Pacific, Atlantic, and In¬dian ocean coasts. A meta-analysis was conducted by combining data from multiple studies as by doing so it is often possible to identify more reliable trends than by comparing the results of individual analyses. We utilized the open-source microbial analysis platform Qiita to gain new insight into Pacific Oyster microbiomes and to generate a tool for the scientific community, enabling future studies of new testable hypotheses. After reading papers utilized in the meta-analysis, we hypothesize that bacteria belonging to the Mycoplasmataceae and Spirochaetes family will be common dominant taxa across all geographic regions. Several papers have attributed oyster microbiome fluctuations to environmental changes. These studies found that some tissue types are more affected than others, particularly finding that gut taxonomic evenness and abundance varied the most by tissue type. Therefore, we also hypothesize that the core microbiome, particularly that of the gut, would be very small. A small core microbiome suggests a significant level of variation in taxonomic abundance and diversity for a given tissue type between samples.  more » « less
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; ;
Publisher / Repository:
University of California, San Diego (
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Journal Name:
Saltman Quarterly
No (open access at
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Medium: X
Sponsoring Org:
National Science Foundation
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