Euplotopsis affinis ( Dujardin, 1841 ) Borror & Hill, 1995

Tirjaková, Eva, Botlíková, Simona & Vďačný, Peter, 2015, Checklist and distribution of ciliates from the family Euplotidae Ehrenberg, 1838 (Protista: Ciliophora: Spirotrichea) in Slovakia, Central Europe, Zootaxa 3920 (2), pp. 343-365 : 358

Euplotopsis affinis ( Dujardin, 1841) Borror & Hill, 1995

( Fig. 3 D; Table 3 )

This is a comparatively common species, occurring year round in organic debris and periphyton of mesosaprobic standing and running waters ( Kahl 1932; Foissner et al. 1991). Bick (1964) found this species in marine and brackish waters, rarely in freshwaters.

Euplotopsis affinis was recorded at many localities in the territory of Slovakia, especially, in standing and running waters: in a pit from the inundation zone of the Váh river ( Matis 1968); in wet mosses from Slovenský raj (Slovak Paradise) ( Tirjaková & Matis 1987); in the branch system of the Danube ( Matis & Tirjaková 1992, 1995; Szentivány & Tirjaková 1994); in the main stream of the Danube ( Tirjaková 1992a); in Sphagnum from the Rojkovské rašelinisko peatbog ( Tirjaková 1992b); in the Turiec river ( Krno et al. 1996); in streams of the Žiarska kotlina basin and Slovenský kras (Slovak Krast) ( Tirjaková 1997a, 1998); in an acidified spring area from the Malé Karpaty Mts. ( Tirjaková 1997b; Tirjaková & Stloukal 2004) as well as in the spring area of the Dierový potok stream in the Rozsutec Mts. ( Tirjaková 1997c); at several localities of the Hron river including its spring area ( Tirjaková 1998, 2006); in the Morava river ( Baláži & Matis 2002); in the Gidra river ( Tirjaková 2003a); in the Stupavský potok stream ( Tirjaková 2003b); in tree holes from oak-hornbeam forests in the Malé Karpaty Mts. and Trnavská pahorkatina hills ( Holecová et al. 2005; Tirjaková & Vďačný 2005); in the Zbojský potok and Ulička streams ( Novikmec et al. 2007); in the Ipeľ river ( Baláži 2010); in a hypertrophic water reservoir near the town of Modra ( Tirjaková 2010); in the Váh river ( Tirjaková & Vďačný 2013a); and in the Zubrovica stream ( Tirjaková & Vďačný 2013b). We recorded E. affinis at several localities of the Danube and its branch system (Bodícka brána, Istragov, and Starý les) as well as in the Skalička stream (unpubl. observ.).

Figures

FIGURE 3. Various euplotids recoded at the territory of Slovakia after protargol (A) and silver nitrate (B – F) impregnation. (A) Euplotoides aediculatus, dorsal view showing nuclear apparatus. (B, C) Euplotoides patella, ventral (B) and dorsal (C) view. (D) Euplotopsis affinis, dorsal view showing the double- eurystomus silverline pattern. (E) Euplotopsis finki, dorsal view showing the double- eurystomus silverline pattern. (F) Euplotopsis muscicola, dorsal view showing the muscicola silverline pattern. AZM—adoral zone of membranelles, CC—caudal cirri, DK—dorsal kineties, FV—frontoventral cirri, MA—macronucleus, MI—micronucleus. Scale bars: 20 µm (D – F), 30 µm (B, C), and 50 µm (A).