Chaetoceros and Thalassiosira diversity and abundance as recorded during the morphology-based surveys in 2010 and 2011.

PB = Passamaquoddy Bay; WV = The Wolves; J = January; F = February; M = March; A = April; My = May; Jun = June; Jul = July; Aug = August; S = September; O = October; N = November; and D = December.an indicates the number of tow subsamples in which each taxon was present (n = 59 for 2010 and n = 46 for 2011).bMonths are the months each taxon was present.cn>1 are the number of tow subsamples with a HELCOM rating>1.dMonths n>1 are the months in which the higher abundance occurred.