Dyer B D, Gaju N, Pedrós-Alió C, Esteve I, Guerrero R
Biosystems. 1986;19(2):127-35. doi: 10.1016/0303-2647(86)90025-0.
Ciliates were collected from a freshwater sulfuretum, Lake Cisó, which is part of a gypsum karstic area whose main feature is Lake Banyoles (Girona, Spain). Chromatium, Lamprocystis and Chlorobium are the major phototrophic sulfur bacteria in Lake Cisó. Blooms of a photosynthetic cryptomonad (up to 5 X 10(5) ind ml-1) were found at the metalimnion. The community of ciliates could be divided in three groups: aerobic, cosmopolitan, genera such as Stentor and Vorticella, in the epilimnion; a large population (up to 10(4) ind ml-1) of Coleps, adapted to low concentrations of both oxygen and sulfide, together with a few individuals of the equally sulfide-tolerant genus Paramecium, in the metalimnion, and anaerobic, true sulfide-loving genera such as Plagiopyla and Metopus, in the hypolimnion, where sulfide concentration was between 0.6 and 1.2 mM.
纤毛虫是从一个淡水硫化物泉（西索湖）采集的，该湖是石膏岩溶地区的一部分，其主要特征是班约莱斯湖（西班牙赫罗纳）。嗜盐绿菌属、闪光囊硫菌属和绿菌属是西索湖中的主要光合硫细菌。在温跃层发现了光合隐藻的水华（高达5×10⁵个/毫升）。纤毛虫群落可分为三组：需氧的、世界性的属，如喇叭虫属和钟形虫属，存在于表水层；大量（高达10⁴个/毫升）的鞘口虫属，适应低浓度的氧气和硫化物，以及少数同样耐硫化物的草履虫属个体，存在于温跃层；厌氧的、真正嗜硫化物的属，如斜口虫属和后口虫属，存在于底水层，那里的硫化物浓度在0.6至1.2毫摩尔/升之间。
