Blooms also like it cold
作者: Kaitlin L. Reinl, Ted D. Harris, Rebecca L. North, Pablo Almela, Stella A. Berger, Mina Bizic, Sarah H. Burnet, Hans-Peter Grossart, Bastiaan W Ibelings, Ellinor Jakobsson, Lesley B. Knoll, Brenda M. Lafrancois, Yvonne McElarney, Ana M. Morales-Williams, Ulrike Obertegger, Igor Ogashawara, Ma Cristina Paule-Mercado, Benjamin L. Peierls, James A. Rusak, Siddhartha Sarkar, Sapna Sharma, Jessica V. Trout-Haney, Pablo Urrutia-Cordero, Jason J. Venkiteswaran, Danielle J. Wain, Katelynn Warner, Gesa A. Weyhenmeyer, Kiyoko Yokota
期刊: Current Evidence
Cyanobacterial blooms have substantial direct and indirect negative impacts on freshwater ecosystems including releasing toxins, blocking light needed by other organisms, and depleting oxygen. There is growing concern over the potential for climate change to promote cyanobacterial blooms, as the positive effects of increasing lake surface temperature on cyanobacterial growth are well documented in the literature; however, there is increasing evidence that cyanobacterial blooms are also being initiated and persisting in relatively cold-water temperatures (< 15°C), including ice-covered conditions. In this work, we provide evidence of freshwater cold-water cyanobacterial blooms, review abiotic drivers and physiological adaptations leading to these blooms, offer a typology of these lesser-studied cold-water cyanobacterial blooms, and discuss their occurrence under changing climate conditions.
Figure 1. Photos of cold-water cyanobacterial surface scums including: (A) Planktothrix rubescens on the 11th of April 2020 in Lake Stechlin (Photo Credit: HPG, Doris Ilicic); (B) Aphanizomenon sp. on the 31st of October 2018 in Cross Reservoir, Kansas, USA (Photo Credit: TDH); (C) Dolichospermum sp. and Microcystis sp. on the1st of November 2018 in West Campus Lake, Kansas, USA (Photo Credit: TDH); (D) Dolichospermum circinalis and Aphanizomenon flos-aquae on the 1st of December 2020 in Devil's Lake, Wisconsin (Photo Credit: Richard Lathrop); and (E) Aphanizomenon sp. On the 9th of November 2020 in Salmon Lake, Maine (Photo Credit: DJW).