First Advisor

Anne Thompson

Date of Award

5-25-2018

Document Type

Thesis

Degree Name

Bachelor of Science (B.S.) in Biology and University Honors

Department

Biology

Subjects

Cyanobacteria -- North Pacific Ocean, Cyanobacteria -- Effect of temperature on, Ocean temperature

DOI

10.15760/honors.594

Abstract

Here, we examine cyanobacteria diversity along an understudied transect of the North Pacific Ocean. Nine surface-seawater samples were analyzed using PCR of the Prochlorococcus ITS region and high-throughput DNA sequencing. We discovered distinct regions of HL-I Prochlorococcus, HL-II Prochlorococcus, and Synechococcus along the transect. When superimposed beside the temperature and salinity gradients recorded along the transect, clear patterns emerge that suggest an important relationship between sea-surface temperature and the Prochlorococcus ecotypes that are abundant in the North Pacific Ocean.

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Persistent Identifier

http://archives.pdx.edu/ds/psu/25391

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