The Effect of Non-Optimal pH on the Growth of Licmophora abbreviata

Yuchen Cheng, Celia Dossot, Vlada Mazur, Hadi Minai


This paper aims to investigate the statistical relationships between varying pH levels and the growth rates of diatoms by using a hemocytometer to count cells, applying various graphing methods to observe growth rates and analyzing the significance of our results via a one-way ANOVA. It demonstrates that there is no difference in Licmophora abbreviata growth at pH 7.0, 8.0 and 9.0. This is a relevant discovery with respect to the ongoing acidification of oceans that is ultimately affecting the populations of diatoms and their primary consumers: the salmon near the west coast of British Columbia.

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