Accumulation and effects of cyanobacterial microcystins and anatoxin-a on benthic larvae of Chironomus spp. (Diptera: Chironomidae)

Toporowska, Magdalena; Pawlik‐Skowrońska, Barbara; Kalinowska, Renata

doi:10.14411/eje.2014.010

Cited by 51 publications

(31 citation statements)

References 43 publications

(33 reference statements)

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“…Microscopic algae, especially diatoms, are often rich in protein and essential fatty acids and may therefore be considered as high-quality food for growing larvae (Kajak and Warda 1968;Johannsson and Beaver 1983;Ahlgren et al 1997;Goedkoop et al 1997;Gullberg et al 1997;Dukowska et al 1999;Vos et al 2000). Cyanotoxins in turn can be accumulated in the tissues of chironomid larvae with no visible damage to the community, constituting an important vector of toxins to higher levels in aquatic food chains (Kaczorowska and Kornijów 2012;Toporowska et al 2014).…”

Section: Discussionmentioning

confidence: 99%

Feeding by two closely related species of Chironomus (Diptera: Chironomidae) in south Baltic lagoons, with implications for competitive interactions and resource partitioning

2019

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Four major categories of food items were determined in the gut content of chironomid larvae collected in the Curonian and Vistula Lagoons in the spring-summer period of 2009-2011. These were detritus (range from 88 to 92% of the gut content, by volume), matter of plant (2-7%) and animal origin (0.2-0.5%), and mineral particles (3-7%). Plant matter comprised pine pollen, conidia of fungi, cyanobacteria, green algae and diatoms. Matter of animal origin consisted of remnants of oligochaetes and rotifers. Food content was more diverse in the larvae inhabiting the Curonian Lagoon. The size of mineral particles in gut contents was significantly higher in C. balatonicus, although the distance between the bases of the maxillas, as a predictor of the size of the particles being eaten, was larger in C. plumosus. The gut content analysis suggested lack of clear food selectivity which potentially may lead to interspecific competition for food. However, the strength of interaction can be substantially weakened by several factors: (1) exceptionally favourable food conditions for benthic chironomids in both highly eutrophic lagoons, (2) the ability to occupy areas differing in salinity, (3) different feeding behaviour and (4) the ability to swallow particles of different size spectra.

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Section: Discussionmentioning

confidence: 99%

Feeding by two closely related species of Chironomus (Diptera: Chironomidae) in south Baltic lagoons, with implications for competitive interactions and resource partitioning

2019

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“…In recent decades, global warming and increasing water eutrophication have intensified harmful cyanobacterial blooms ('cyanoHABs') formed by different species of planktonic cyanobacteria [1][2][3]. Cyanobacterial blooms can harm humans and affect the functioning of aquatic biocenoses [2,4,5], particularly when they are composed of strains producing cyanotoxins such as hepatotoxic microcystins and cylindrospermopsins, neurotoxic anatoxin-a, anatoxin-a(s), saxitoxins or other less known compounds [6][7][8][9]. Filamentous Planktothrix agardhii is one of the most common potentially toxigenic bloom-forming cyanobacterium occurring in shallow, eutrophic freshwaters of temperate climatic zones [10][11][12].…”

Section: Introductionmentioning

confidence: 99%

The Effects of Cyanobacterial Bloom Extracts on the Biomass, Chl-a, MC and Other Oligopeptides Contents in a Natural Planktothrix agardhii Population

Toporowska

Mazur‐Marzec

Pawlik‐Skowrońska

2020

IJERPH

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Blooms of the cyanobacterium Planktothrix agardhii are common in shallow, eutrophic freshwaters. P. agardhii may produce hepatotoxic microcystins (MCs) and many other bioactive secondary metabolites belonging mostly to non-ribosomal oligopeptides. The aim of this work was to study the effects of two extracts (Pa-A and Pa-B) of P. agardhii-predominated bloom samples with different oligopeptide profiles and high concentration of biogenic compounds on another natural P. agardhii population. We hypothesised that the P. agardhii biomass and content of oligopeptides in P. agardhii is shaped in a different manner by diverse mixtures of metabolites of different P. agardhii-dominated cyanobacterial assemblages. For this purpose, the biomass, chlorophyll a and oligopeptides content in the treated P. agardhii were measured. Seven-day microcosm experiments with four concentrations of the extracts Pa-A and Pa-B were carried out. Generally, aeruginosins (AERs), cyanopeptolins (CPs) and anabaenopeptins (APs) were the most numerous peptides; however, only 16% of them were common for both extracts. The addition of the extracts resulted in similar effects on P. agardhii: an increase in biomass, Chl-a and MC content in the exposed P. agardhii as well as changes in its oligopeptide profile were observed. MCs present in the extracts did not inhibit accumulation of P. agardhii biomass, and did not have any negative effect on MC and Chl-a content. No evidence for bioaccumulation of dissolved peptides in the P. agardhii exposed was found. As the two tested extracts differed considerably in oligopeptide composition, but contained similar high concentrations of nutrients, it seems that biogenic compounds, not oligopeptides themselves, positively influenced the mixed natural P. agardhii population.

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“…Initial concerns related to toxic benthic cyanobacteria have focused on human health risks (Wood et al 2011), the risk to terrestrial animals (in particular stock and dogs; Mez et al 1997;Gugger et al 2005), and impacts on higher trophic level species (Wood et al 2012a); however, these toxins can also affect macroinvertebrates (DeMott et al 1991;Toproska et al 2014). The potential for toxicity to arthropod macroinvertebrates is of particular concern because some of the neurotoxic cyanotoxins bind to neuroreceptors targeted by currently used pesticides (Aboal et al 2002;Da S. Ferrão-Filho and Kozlowsky-Suzuki 2011) that are known to impact aquatic ecosystems (Dirzo et al 2014; Morrissey et al 2015;Anderson et al 2017).…”

Section: Introductionmentioning

confidence: 99%

Extracts from benthic anatoxin‐producing Phormidium are toxic to 3 macroinvertebrate taxa at environmentally relevant concentrations

Anderson

Voorhees

Phillips

et al. 2018

Enviro Toxic and Chemistry

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Toxin-producing cyanobacteria are increasing in rivers and streams globally, leading to growing concerns over their potential impacts on aquatic ecosystems. The present study was designed to culture field-collected Phormidium in the laboratory, identify individual species, conduct chemical analyses to identify cyanotoxins, and conduct toxicity tests to investigate the potential for this genera to impact stream health. Freshwater toxicity tests were conducted with standard US Environmental Protection Agency invertebrate test protocols with culture water used to grow 3 Phormidium strains isolated from the Russian River (CA, USA). Enzyme linked immunosorbent assays were used to measure total anatoxin concentrations. Culture waters from the 3 Phormidium strains were highly toxic to Ceriodaphnia dubia, Hyalella azteca, and Chironomus dilutus. The C. dubia 7-d survival median lethal concentrations were 0.71, 0.49, and 0.56 μg/L anatoxin for Phormidum strains 1, 2, and 3, respectively. The 7-d reproduction inhibitory concentrations, 25% were 0.55, 0.32, and 0.30 μg/L anatoxin for strains 1, 2, and 3, respectively. Chironomus dilutus survival was reduced at concentrations <2 μg/L anatoxin by all 3 strains, and the H. azteca 96-h lethal concentrations, 25% were 2.82, 1.26, and 5.30 μg/L for strains 1, 2, and 3, respectively. Additional liquid chromatography-mass spectrometry analyses demonstrated that the likely anatoxin variant in these cultures was dihydro-anatoxin-a. The results suggest that anatoxins produced by Phormidium have the potential to impact stream macroinvertebrates. Environ Toxicol Chem 2018;37:2851-2859. © 2018 SETAC.

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Accumulation and effects of cyanobacterial microcystins and anatoxin-a on benthic larvae of Chironomus spp. (Diptera: Chironomidae)

Cited by 51 publications

References 43 publications

Feeding by two closely related species of Chironomus (Diptera: Chironomidae) in south Baltic lagoons, with implications for competitive interactions and resource partitioning

Feeding by two closely related species of Chironomus (Diptera: Chironomidae) in south Baltic lagoons, with implications for competitive interactions and resource partitioning

The Effects of Cyanobacterial Bloom Extracts on the Biomass, Chl-a, MC and Other Oligopeptides Contents in a Natural Planktothrix agardhii Population

Extracts from benthic anatoxin‐producing Phormidium are toxic to 3 macroinvertebrate taxa at environmentally relevant concentrations

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