Occurrence of toxic Planktothrix rubescens blooms in lake Nantua, France

A review of the alien and expansive species of freshwater cyanobacteria and algae in the Czech Republic

“…Presumably, G. echinulata does represent any danger in the Czech Republic, although it tends to form water blooms in its home range. Original distribution: P. rubescens originated in the Holarctic area and primarily in two regions: southern and central Norway (Komárek and Anagnostidis 2005), and the western alpine area, especially large lakes in Switzerland (Bürgi 1987;Bürgi and Stadelmann 2002;Walsby 2005), Austria (Dokulil and Teubner 2005), Italy (Legnani et al 2005;Salmaso 2003), Germany (Teubner et al 2003), Slovenia (Grach-Pogrebinsky et al 2003), and France (Jacquet et al 2005;Jann-Para et al 2004). The similarity of European and North American populations is being examined (confusion with P. prolifica is likely); data from the tropics are probably misidentifications in that P. prolifica is probably confused with P. pseudagardhii.…”

High-frequency monitoring of phytoplankton dynamics within the European water framework directive: application to metalimnetic cyanobacteria

“…Cyanobacterium Planktothrix rubescens is frequently found in most of them (Briand et al 2005;Ernst et al 2009): e.g. Lake Zürich (Holland and Walsby 2008;Walsby et al 2006;Walsby and Schanz 2002), Lake Garda (Salmaso et al 2006), Lake Nantua (Feuillade and Orand 1994;Jann-Para et al 2004), Mondsee (Dokulil and Teubner 2005). The microcystin-producing Planktothrix spp.…”

Spatial match between Planktothrix rubescens and whitefish in a mesotrophic peri-alpine lake: Evidence of toxins accumulation

“…This phenomenon may have a possible human health impact due to the consumption of contaminated fish (Cazenave et al, 2005;Deblois et al, 2008;Chen et al, 2009). In the peri-alpine area, whitefish (Coregonus lavaretus) is a highly commercialized zooplanktivorous fish, and several perialpine lakes present high development of the cyanobacterium Planktothrix rubescens which is known to produce principally two variants of microcystins: microcystin-LR (MC-LR) and microcystin-RR (MC-RR) (Jann-Para et al, 2004;Briand et al, 2005;Paulino et al, 2009). Physiological and, histopathological disturbances and behavioral changes have been confirmed through experiments on whitefish exposed to P. rubescens (Ernst et al, 2006(Ernst et al, , 2007.…”