TABLE 2.

Protozoan types identified in experiment 1^a

Protozoan type	Bordeaux A1					Bordeaux A2
	Control	PA	PD	FA	FD	Control	PA	PD	FA	FD
Apusomonadida
Apusomonas proboscidea Aléxéieff 1924	x		x			x
Kinetoplastida
Bodo designis Skuja 1948	x	x	x	x				x
Dimastigella trypaniformis Sandon 1928		x				x
Cercomonadida
Cercomonas small type						x		x	x
Cercomonas large type	x	x	x	x		x	x	x	x
Heteromita amoeboid type	x	x	x	x		x	x		x
Heteromita globosa (Stein 1878) Kent 1880	x	x	x	x		x	x	x	x
Choanoflagellida
Codosiga botrytis (Ehrenberg 1838) Kent 1880						x	x
Cryptophyceae
Goniomonas truncata (Fresenius 1858) Stein 1878						x	x	x
Euglenophyceae
Petalomonas minuta Hollande 1942						x	x
Petalomonas pusilla Skuja 1948						x	x	x
Petalomonas punctato-striata Skuja 1939	x	x				x	x	x
Stramenopiles
Spumella type	x	x	x	x	x	x		x	x	x
Thaumatomastigidae
Protaspis simplex Vørs 1992	x	x				x	x	x	x
Insertae sedis
Allantion tachyploon Sandon 1924	x	x	x	x		x	x	x	x
Sciviamonas terricola Ekelund, Patterson & Vørs 1997						x	x	x
Flagellate type A				x		x	x	x	x
Flagellate type B						x	x	x
Naked amoebae	x	x		x		x	x	x	x
Heliozoan type								x
Ciliates	x	x	x	x		x	x	x	x

^aThe x indicates that the type was found in at least one of three replicates of the treatment in which it occurred. Whenever possible, a species name was assigned to the heterotrophic flagellates; taxonomic species in the table are followed by the original publication. In some cases, however, it was necessary to apply a broader morphotype concept. Cercomonas spp. are virtually impossible to identify to species level, and we saw several different forms in the samples which we could not identify; hence, we assigned Cercomonas cells that were ≤ 10 μm long to “small type,” whereas cells of >10 μm were assigned to “large type.” Cells with great similarity to Heteromita globosa but with more pronounced amoeboid properties, which were often seen in the samples, were assigned to Heteromita amoeboid type. As with Cercomonas, Spumella spp. are virtually impossible to identify to species level, and hence they are referred to as Spumella type. A few characteristic types occurred in the samples which we were unable to associate with any taxonomic unit; these are included in the table as flagellate type A and type B. Besides the flagellate morphotypes, we also included the ciliates as a morphotype as well as the groupings naked amoebae and heliozoan type. PA and PD, partial treatment with acetone and dichloromethane, respectively; FA and FD, full treatment with acetone and dichloromethane, respectively.