Variability in microcystin quotas during a Microcystis bloom in a eutrophic lake

Susanna A Wood, Jonathan Puddick, Ian Hawes, Konstanze Steiner, Daniel R Dietrich and David P Hamilton

PLOS ONE, 2021, vol. 16, issue 7, 1-13

Abstract: Microcystis is a bloom-forming genus of cyanobacteria with some genotypes that produce highly toxic microcystin hepatotoxins. In waterbodies where biological and physical factors are relatively homogenous, toxin quotas (the average amount of toxin per cell), at a single point in time, are expected to be relatively constant. In this study we challenged this assumption by investigating the spatial distribution of microcystin quotas at a single point in time on two separate occasions in a lake with a major Microcystis bloom. Microcystis cell concentrations varied widely across the lake on both sampling occasions (730- and 137-fold) together with microcystin quotas (148- and 362-fold). Cell concentrations and microcystin quotas were strongly positively correlated (R2 = 0.89, P

Date: 2021
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0254967

DOI: 10.1371/journal.pone.0254967

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