Navicula directa (W. Smith) Brébisson (Figure 68)

Literature: (Poulin 1990, p. 138, pl. 18.1, fig. 24; Scott and Thomas 2005, p. 157, fig. 2.87a–d; Witkowski et al. 2000, p. 275, pl. 129, fig. 1, pl. 133, figs. 10–12).

Description: 52–90 µm, width 8–12 µm, striae 8–11 in 10 µm.

Remarks: This is one of the most common species encountered in the present study. It appeared in all samples examined.

Ecology and distribution: A widely distributed marine bipolar species (von Quillfeldt 2000). Common in Potter Cove.