2023
DOI: 10.1002/lno.12351
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The emergence and dominance of Planktothrix rubescens as an hypolimnetic cyanobacterium in response to re‐oligotrophication of a deep peri‐alpine lake

Abstract: Toxic cyanobacteria, such as Planktothrix rubescens, came to dominate temperate lakes in the mid‐to‐late 20th century, as a result of eutrophication. Even after decades of re‐oligotrophication, where phosphorus levels were reduced by 1–2 orders of magnitude, P. rubescens remains present in various lakes. In this study, we examine the persistence and changes of P. rubescens deep chlorophyll maximum (DCM) in Lake Hallwil (Switzerland) over 35 yr of steadily decreasing phosphorous concentrations. Although lake tr… Show more

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Cited by 1 publication
(2 citation statements)
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“…Beyond Lake Superior, cyanobacterial blooms have been reported in oligotrophic freshwater systems in the U.S. ( Murphy et al, 2023 ), Canada ( Winter et al, 2011 ), and Europe. Planktothrix rubescens blooms have dominated Lake Hallwil (Switzerland) decades after its alleged re-oligotrophication ( Suarez et al, 2023 ). Likewise, Dolichospermum spp.…”
Section: Do Physiochemical Shifts In Lakes Column Merit Shifts In Par...mentioning
confidence: 99%
See 1 more Smart Citation
“…Beyond Lake Superior, cyanobacterial blooms have been reported in oligotrophic freshwater systems in the U.S. ( Murphy et al, 2023 ), Canada ( Winter et al, 2011 ), and Europe. Planktothrix rubescens blooms have dominated Lake Hallwil (Switzerland) decades after its alleged re-oligotrophication ( Suarez et al, 2023 ). Likewise, Dolichospermum spp.…”
Section: Do Physiochemical Shifts In Lakes Column Merit Shifts In Par...mentioning
confidence: 99%
“…Cyanobacteria have emerged in what were classically considered to be cold systems, such as Three Mile Lake (US) ( Persaud et al, 2015 ) and Lake Baikal (Russia) ( Namsaraev et al, 2018 ). In turn, the emergence of cyanobacterial blooms in large oligotrophic systems such as Lake Superior (US) ( Sheik et al, 2022 ; Sterner et al, 2020 ) and smaller oligotrophic lakes such as Maggiore (Italy / Switzerland) ( Callieri et al, 2014 ) and Hallwil (Switzerland) ( Suarez et al, 2023 ) have been interpreted as a shift in the “high nutrient paradigm” ( Reinl et al, 2021 ). A comprehensive revisitation of these paradigms is required in the face of emerging observations.…”
Section: Introductionmentioning
confidence: 99%