This study showed close relationship between diatom species composition and changes of physico-chemical parameters, particularly the nutrient concentrations. scutellum, while motile taxa joined the fouling communities from July to September. flexella (Janisch and Rabenhorst) Grunow and Cocconeis scutellum Ehrenberg var. Among diatoms, adnate were the primary colonizers, particularly Cocconeis dirupta W.Gregory var. The lake has high diatom species richness (285 diatom taxa within 72 genera), with the highest species diversity index in August. Heterotrophic bacteria increased to peak abundances (69,268 cells cm-2) at the beginning of June when the diatoms abundances start to increase. According to TRIX trophic index, lake showed different trophic character: (i) oligotrophic (at the beginning and the end of the study), (ii) mesotrophic (the end of June to mid-July), (iii) eutrophic (the end of July to mid-September). The initial colonization of bacteria and diatoms on a immersed artificial substrate and the development of diatom assemblages in relation to physico-chemical parameters were investigated on a weekly basis at one station in the marine Lake Mrtvo More, South Croatia, from April to October 2016. Jasprica, "Colonization of bacteria and diatoms on an artificial substrate in a marine lake (eastern Adriatic Sea, NE Mediterranean)", Acta Botanica Croatica, vol.79, br. Colonization of bacteria and diatoms on an artificial substrate in a marine lake (eastern Adriatic Sea, NE Mediterranean). Ĭar A, Hafner D, Ljubimir S, Radić ID, Bobanović-Ćolić S, Jasprica N. 'Colonization of bacteria and diatoms on an artificial substrate in a marine lake (eastern Adriatic Sea, NE Mediterranean)', Acta Botanica Croatica, 79(2), str. "Colonization of bacteria and diatoms on an artificial substrate in a marine lake (eastern Adriatic Sea, NE Mediterranean)." Acta Botanica Croatica 79, br.
Ĭar, Ana, Dubravka Hafner, Stijepo Ljubimir, Iris Dupčić Radić, Svjetlana Bobanović-Ćolić i Nenad Jasprica. "Colonization of bacteria and diatoms on an artificial substrate in a marine lake (eastern Adriatic Sea, NE Mediterranean)." Acta Botanica Croatica, vol. Mitchell et Lara.Car, A., Hafner, D., Ljubimir, S., Radić, I.D., Bobanović-Ćolić, S. rotunda (Penard 1890), describe three new species: N. collaris ( Ehrenberg 1848) Kosakyan et Gomaa, change N. We redefine Nebela tincta (Leidy) Kosakyan et Lara and N. We therefore revise the taxonomy of the group. We show here that small variations in test morphology that have been often overlooked by traditional taxonomy correspond to distinct haplotypes. Our goals were (1) to clarify the taxonomy and the phylogenetic relationships within this group, and (2) to evaluate if individual genotypes corresponded to specific morphotypes and the extent of phenotypic plasticity. We examined the relationship between morphological and genetic diversity within this species complex by combined analyses of light microscopy imaging and Cytochrome Oxidase Subunit 1(COI) sequences obtained from the same individual amoeba cells. The taxonomic validity of characters used to define species within this group is debated and causes confusion in studies of biogeography, and applications in palaeoecology. Nebela tincta–collaris–bohemica (Arcellinida) is a species complex of small to medium-sized (ca.100 μm) testate amoebae common in peat bogs and forest soils. Species identification by means of morphology is often problematic in protists.
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