(Eulenstein ex Grunow) Nakov, Guillory, M.L.Julius, E.C.Ther. and A.J.Alverson 2015 Category: Centric
BASIONYM: Cyclotella bodanica Eulenstein ex Grunow in Schneider 1878
SYNONYM(S): Puncticulata bodanica (Eulenstein ex Grunow) H. Håkansson | Handmannia bodanica (Eulenstein ex Grunow) Kociolek and Khursevich | Cyclotella comta var. bodanica Grunow
Valves are disc-shaped with a concentrically undulate valve face, with the center valve either weakly convex or concave. The ornamentation of the valve face is divided into two distinct parts, the alveolate striae at the margin and a punctate central area. The punctate central covers 2/3 of the valve face (in relation to the diameter) The areolae of the valve center are arranged in a three patterns; 1) at the center of the valve a rosette surrounded by an annulus, 2) rows of areolae radiate from the annulus, or 3) random scattering of areolae. The alveolate striae are often bifurcate at the valve margin with occasional branching of the costae. The alveolate striae often are grouped in pairs, sometimes as 3, and separated by a thickened rib at the margin. The alveolate striae generally terminate evenly to form a distinct boundary to the central ornamentation. Some striae, however, terminate at rimoportulae (2-5 per valve) within the striated portion of the valve face. The number of rimoportuale is size dependent, with larger valves bearing more rimoportulae than smaller valves.
This species is associated with a group of closely related taxa within the L. bodanica-complex, and the identity of members of this group has been the focus of several studies (Håkansson 1988, Houk et al. 2010, Nakov et al. 2015). While there are many reports using the name L. bodanica (or Cyclotella bodanica) as an environmental indicator, few provide verifiable light micrographs or those that do confuse L. bodanica with other species in the complex (Foged 1981, Saros and Anderson 2014).
Basionym: Cyclotella bodanica
Author: Eulenstein ex Grunow in Schneider 1878
Diameter: < 60 µm
Rows of areolae in 10 µm: 11
Foged, N. (1981). Diatoms in Alaska. Bibliotheca Phycologica, Band 53, J. Cramer, Vaduz, 317 pp.
Grunow, A. (1878). Algen und Diatomaceen aus dem Kaspischen Meere. In: O. Schneider (ed.), Naturwissenschafte Beiträge zur Kenntniss der Kaukasusländer, auf Grund seiner Sammelbeute. Dresden, pp. 98-132, pls. 3-4.
Håkansson, H. (2002). A compilation and evaluation of species in the genera Stephanodiscus, Cyclostephanos and Cyclotella with a new genus in the family Stephanodiscaceae. Diatom Research 17: 1-139.
Kling, H.J. and Håkansson, H. (1988). A light and electron microscope study of Cyclotella species (Bacillariophyceae) from central and northern Canadian lakes. Diatom Research 3:55-82.
Nakov, T., Guillory, W.X., Julius, M.L., Theriot, E.C. and Alverson, A.J. (2015). Towards a phylogenetic classification of species belonging to the diatom genus Cyclotella (Bacillariophyceae): Transfer of species formerly placed in Puncticulata, Handmannia, Pliocaenicus and Cyclotella to the genus Lindavia. Phytotaxa 217 (3): 249–264. 10.11646/phytotaxa.217.3.2
Reavie, E.D. and Kireta, A.R. (2015). Centric, Araphid and Eunotioid Diatoms of the Coastal Laurentian Great Lakes. Bibliotheca Diatomologica 62:1-184.
Saros, J.E. and Anderson, N.J. (2015). The ecology of the planktonic diatom Cyclotella and its implications for global environmental change studies. Biol Rev. 90(2): 522-541. 10.1111/brv.12120
Lindavia bodanica is a planktonic diatom found in low conductivity lakes. For example, L. bodanica is common from larger, low conductivity (<60 µS), oligo-mesotrophic (chl a <2.5 ppb), circumneutral lakes of Canada (Kling and Håkansson 1988). In the Laurentian Great Lakes it is found most abundant in Lake Superior (Reavie and Kireta 2015).
Size series of L. bodanica, scale bar = 10 µm
Credit/Source: Specimens found by: Allison, Bianca, Christian, Dylan, Emily, Emily S., Ethan, Hailey, Henry, Katrina, Kylie, Lucas, Mady, Nicholas, Nora, Orion, and Thomas, all young citizen scientists at the Science Museum of Minnesota Members Behind the Scenes event on January 16, 2017.
Initial valves of L. bodanica, scale bar = 10 µm
Credit/Source: Specimens found by: Max, a young citizen scientists at the Science Museum of Minnesota Members Behind the Scenes event on January 16, 2017.