Record Details

Shifts in Microbial Communities Based Upon Transect Habitat

ScholarsArchive at Oregon State University

Field Value
Title Shifts in Microbial Communities Based Upon Transect Habitat
Names Greydanus, Logan (creator)
Vega-Thurber, Rebecca (advisor)
Date Issued 2014-05-30 (iso8601)
Note Honors Bachelor of Science (HBS)
Abstract Coral reef health has been in severe decline around the globe in the past several
decades, in many cases due to direct human impact. Human action, such as overfishing,
habitat destruction and nutrient loading, has caused coral coverage to drop to record lows,
threatening the future of these critically important biodiversity hotspots. This study
investigates the changes in microbial community along reef transects on the South Pacific
island of Moorea. Samples were collected at three distinct habitats along reef transects:
Fringing Reef, Back Reef, and Cresting Reef. Reef habitats were compared between three
regions around the island: North, East and West. Results indicate that there is a
significant difference in Bacterial and Archaeal (16S) species between the inner fringing
reef habitat and the outer Cresting and Back reef habitats. This difference can
consistently be seen across all regions sampled around Moorea. Comparison of the 16S
communities based solely on region resulted in no significant difference, suggesting that
the primary driver of microbial diversity is location on transect and not region. Based on
these results, it appears the Bacterial and Archaeal communities are defined by the reef
habitat they belong to and that these communities are not unique to region.
Genre Thesis
Topic Bacteria
Identifier http://hdl.handle.net/1957/50876

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