Distribution and frequence of Oithona similis kind sequence.

Pie diagrams depicting the kind sequence frequencies of a 51 bp region of 28S for samples of O. similis collected from Gulf of Maine (GM), Iceland (IC), Middle Atlantic Bight (MAB), Bay of Biscay (BB), Península Valdés (PV) and Bahía Grande (BG). Sample size (n =  number of individual copepods) in each location. The twelve O. similis sequence types (H1–H12) are represented by different colours. References in the figure.