US EPA

7419914 

Journal Article 

Effect of Increased Temperature on Native and Alien Nuisance Cyanobacteria from Temperate Lakes: An Experimental Approach 

Savadova, K; Mazur-Marzec, H; Karosienė, J; Kasperovičienė, J; Vitonytė, I; Toruńska-Sitarz, A; Koreivienė, J; , 

2018 

1 

Toxins
ISSN: 2072-6651 

MDPI 

BASEL 

10 

11 

445 

English 

30380769 

10.3390/toxins10110445 

WOS:000451315900024 

http://www.mdpi.com/2072-6651/10/11/445
Exit
 

In response to global warming, an increase in cyanobacterial blooms is expected. In this work, the response of two native species of Planktothrix agardhii and Aphanizomenon gracile, as well as the response of two species alien to Europe-Chrysosporum bergii and Sphaerospermopsis aphanizomenoides-to gradual temperature increase was tested. The northernmost point of alien species distribution in the European continent was recorded. The tested strains of native species were favoured at 20⁻28 °C. Alien species acted differently along temperature gradient and their growth rate was higher than native species. Temperature range of optimal growth rate for S. aphanizomenoides was similar to native species, while C. bergii was favoured at 26⁻30 °C but sensitive at 18⁻20 °C. Under all tested temperatures, non-toxic strains of the native cyanobacteria species prevailed over the toxic ones. In P. agardhii, the decrease in concentration of microcystins and other oligopeptides with the increasing temperature was related to higher growth rate. However, changes in saxitoxin concentration in A. gracile under different temperatures were not detected. Accommodating climate change perspectives, the current work showed a high necessity of further studies of temperature effect on distribution and toxicity of both native and alien cyanobacterial species. 

Bloom-forming cyanobacteria; Cyanotoxins; Europe; Global warming; Oligopeptides; Shallow lakes; Cyanotoxin; microcystin; oligopeptide; saxitoxin; unclassified drug; Aphanizomenon gracile; Article; Chrysosporum bergii; cyanobacterium; growth rate; incubation temperature; introduced species; liquid chromatography-mass spectrometry; nonhuman; pH; Planktothrix agardhii; Sphaerospermopsis aphanizomenoide; temperature; cyanobacterium; eutrophication; isolation and purification; lake; microbiology; Cyanobacteria; Eutrophication; Lakes; Temperature