Short-term toxicity effects of Prymnesium parvum on zooplankton community composition

Witt, Brenda A. de; Beyer, Jessica E.; Hallidayschult, Thayer; Hambright, K. David

doi:10.1007/s00027-019-0651-2

Cited by 7 publications

(3 citation statements)

References 54 publications

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“…Mussels will probably recover much more slowly, taking more than ten years for the system to return to its pre-catastrophic ecological state 7 . Prymnesium toxins affect zooplankton in species-specific ways, potentially causing shifts in the food web 38 . Prolonged periods of low discharge and elevated water temperatures as witnessed in 2022 will come again and favor plankton growth via extended residence time and improved light supply.…”

Section: Discussionmentioning

confidence: 99%

Unpredicted ecosystem response to compound human impacts in a European river

Köhler,

Varga,

Spahr

et al. 2024

Sci Rep

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Climate change elevates the threat of compound heat and drought events, with their ecological and socioeconomic impacts exacerbated by human ecosystem alterations such as eutrophication, salinization, and river engineering. Here, we study how multiple stressors produced an environmental disaster in a large European river, the Oder River, where a toxic bloom of the brackish-water planktonic haptophyte Prymnesium parvum (the “golden algae”) killed approximately 1000 metric tons of fish and most mussels and snails. We uncovered the complexity of this event using hydroclimatic data, remote sensing, cell counts, hydrochemical and toxin analyses, and genetics. After incubation in impounded upstream channels with drastically elevated concentrations of salts and nutrients, only a critical combination of chronic salt and nutrient pollution, acute high water temperatures, and low river discharge during a heatwave enabled the riverine mass proliferation of B-type P. parvum along a 500 km river section. The dramatic losses of large filter feeders and the spreading of vegetative cells and resting stages make the system more susceptible to new harmful algal blooms. Our findings show that global warming, water use intensification, and chronic ecosystem pollution could increase likelihood and severity of such compound ecoclimatic events, necessitating consideration in future impact models.

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Section: Discussionmentioning

confidence: 99%

Unpredicted ecosystem response to compound human impacts in a European river

Köhler,

Varga,

Spahr

et al. 2024

Sci Rep

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“…HAB toxins have been connected to neurological issues and liver illness in humans [30,31]. It has been confirmed that marine blooms not only pose a serious risk to public health but also reduce the efficiency of zooplankton (water supply energy efficiency) to consume algae, which can indirectly restrict algal growth [27,32]. All these have huge repercussions in affecting the socio-economic conditions of local people and their regional economy.…”

Section: Algal Bloom-associated Toxicitymentioning

confidence: 99%

Review of Harmful Algal Blooms (HABs) Causing Marine Fish Kills: Toxicity and Mitigation

Oh,

Pushparaj,

Muthu

et al. 2023

Plants

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Extensive growth of microscopic algae and cyanobacteria results in harmful algal blooms (HABs) in marine, brackish, and freshwater environments. HABs can harm humans and animals through their toxicity or by producing ecological conditions such as oxygen depletion, which can kill fish and other economically or ecologically important organisms. This review summarizes the reports on various HABs that are able to bring about marine fish kills. The predominant HABs, their toxins, and their effects on fishes spread across various parts of the globe are discussed. The mechanism of HAB-driven fish kills is discussed based on the available reports, and existing mitigation methods are presented. Lapses in the large-scale implementation of mitigation methods demonstrated under laboratory conditions are projected. Clay-related technologies and nano-sorption-based nanotechnologies, although proven to make significant contributions, have not been put to use in real-world conditions. The gaps in the technology transfer of the accomplished mitigation prototypes are highlighted. Further uses of remote sensing and machine learning state-of-the-art techniques for the detection and identification of HABs are recommended.

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“…Phytoplankton community shifts towards a cyanobacteriadominated one may result in long-term community and food-web changes. Cyanobacteria are of poor food quality for zooplankton grazers because of morphological properties, the production of toxic secondary metabolites (DeMott et al, 2001;Witt et al, 2019), inadequate stoichiometry (Gulati & DeMott, 1997), and the lack of essential sterols and long-chain polyunsaturated fatty acids (Martin-Creuzburg et al, 2008;Müller-Navarra et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

Community shifts from eukaryote to cyanobacteria dominated phytoplankton: The role of mixing depth and light quality

et al. 2021

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1. Lake stratification strengthens with increasing surface water temperatures, thereby reducing the depth of the mixed layer. Phytoplankton communities are not only exposed to different nutrient availability within a mixed water column, but also to different light quality. We conducted controled laboratory and mesocosm experiments to investigate phytoplankton, especially cyanobacteria, responses to different light quality and mixing depths.2. Our mesocosm experiment allowed the manipulation of mixing depth in situ by a mesocosm approach and to follow the effects of changing mixing depth on the phytoplankton community composition. Our laboratory experiment allowed the

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Short-term toxicity effects of Prymnesium parvum on zooplankton community composition

Cited by 7 publications

References 54 publications

Unpredicted ecosystem response to compound human impacts in a European river

Unpredicted ecosystem response to compound human impacts in a European river

Review of Harmful Algal Blooms (HABs) Causing Marine Fish Kills: Toxicity and Mitigation

Community shifts from eukaryote to cyanobacteria dominated phytoplankton: The role of mixing depth and light quality

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