Assertion: chlorophyll's property | /r/HasProperty | et al.
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text: Significantly, MG1 Crenarchaeota often exhibit peak absolute abundance (cells ml−1 or 16S rRNA genes ml−1) and high temporal variability at the base of the euphotic zone (Karner et al., 2001; Mincer et al., 2007; Beman et al., 2008, 2010), and SAR11 may share these properties (Eiler et al., 2009).