Diagnosis of the Diatom Community upon Biofilm Development on Stainless Steels in Natural Freshwater

Figure 5

ESEM micrographs showing the composition of diatom species present on the SS specimens after a six-month exposure period in the natural river: arrows in plates ((a) to (h)) indicate the presence of Synedra ulna (a), Rhoicosphenia abbreviata along with other pennate diatoms ((b), (c)), Cymbella sp. ((d), (e)), chains of Melosira varians ((f), (g)), and Spongia (h). Horizontal line indicates the scale bar (20, 50, and 100 µm).

(a)

(b)

(c)

(d)

(e)

(f)

(g)

(h)