HABs taxon details
original description
(of ) Gomont, M. (1892 (1893)). Monographie des Oscillariées (Nostocacées Homocystées). Deuxième partie. - Lyngbyées. <em>Annales des Sciences Naturelles, Botanique.</em> 7(16): 91-264. [details]
context source (Schelde)
Maris, T.; Beauchard, O.; Van Damme, S.; Van den Bergh, E.; Wijnhoven, S.; Meire, P. (2013). Referentiematrices en Ecotoopoppervlaktes Annex bij de Evaluatiemethodiek Schelde-estuarium Studie naar “Ecotoopoppervlaktes en intactness index”. <em>Monitor Taskforce Publication Series, 2013-01. NIOZ: Yerseke.</em> 35 pp. (look up in IMIS) [details]
basis of record
Guiry, M.D. & Guiry, G.M. (2024). AlgaeBase. <em>World-wide electronic publication, National University of Ireland, Galway.</em> searched on YYYY-MM-DD., available online at http://www.algaebase.org [details]
additional source
Hällfors, G. (2004). Checklist of Baltic Sea Phytoplankton Species (including some heterotrophic protistan groups). <em>Baltic Sea Environment Proceedings.</em> No. 95: 210 pp., available online at http://helcom.fi/Lists/Publications/BSEP95.pdf [details] Available for editors
Present Inaccurate Introduced: alien Containing type locality
From editor or global species database
Harmful effect The two taxa, P. rubescens and P. agardhii, which are variously considered a single or two species, both produce microcystins [details]From regional or thematic species database
Description Trichomes mostly solitary, free-floating, up to 300 μm long, straight or somewhat curved, sometimes joined to blue-green or olive-green, microscopic, loose fascicles, occasionally forming benthic membranaceous coat (thallus), without sheaths, or very rarely and facultatively, especially in young stages, with fine sheaths. Trichomes (2.3) 4 - 6 (9.8) μm wide, immotile, not constricted (or very slightly constricted) at the granulated cross-walls, ± gradually attenuated at the ends. Cells shorter than wide or frequently isodiametric, up to 2x longer than wide (before division); cell content blue-green, with numerous aerotopes, without PE. Apical cells convex, sometimes bluntly-conical or ± pointed, sometimes with convex calyptra, rarely capitate. [details]
Distribution Freshwater, planktic in lakes and ponds, often forming water blooms, widely distributed in temperate zones; Europe: Austria, Czech Republic, Den¬mark, Finland, France, Germany, Hungary, Netherlands, Norway, Poland, Russia, Slovakia, Spain, etc.; less recorded from tropical regions (revision of the genotype identity is necessary). Data from non-planktic biotopes (cells without gas vesicles) belong surely to other species (e.g., Hirano 1962).
[details]
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