The spatiotemporal distribution of potential saxitoxin-producing cyanobacteria in western Lake Erie

Journal of Great Lakes Research, Год журнала: 2024, Номер 50(3), С. 102342 - 102342

Опубликована: Март 30, 2024

Cyanobacterial blooms in the western basin of Lake Erie have been well studied with a focus on planktonic Microcystis and cyanotoxin microcystin, but recent research has shown that are not entirely Microcystis. Previous studies documented other taxa capable producing cyanotoxins. Furthermore, benthic cyanobacteria historically overlooked Erie. Saxitoxin is emerging concern freshwater, sxtA gene which encodes its production found Maumee River central Collectively, these points indicated saxitoxin-producing may also occur basin. We utilized three sources data to determine spatial temporal distribution potential water column (years 2018–2022) deployed nutrient diffusing substrata (NDS) impact nutrients, depth, season potential-STX 2018 & 2019). The datasets showed "hotspots" lasted only few weeks. copies per mL did correlate Dolichospermum or Aphanizomenon biovolume, associated elsewhere. In NDS, saxitoxin (ng/cm2) chlorophyll were inversely correlated highest September at deeper whereas was during June shallower depth. This suggests continued monitoring needed drivers basin, we recommend future should solely microcystins blooms.

Язык: Английский

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Cyanotoxins on the move - Freshwater origins with marine consequences: A systematic review of global changes and emerging trends

Marine Pollution Bulletin, Год журнала: 2025, Номер 216, С. 118017 - 118017

Опубликована: Апрель 24, 2025

Язык: Английский

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Seasonal dynamics of biotoxins and potentially toxic phytoplankton in three Baltic Sea blue mussel farms

Harmful Algae, Год журнала: 2025, Номер 147, С. 102885 - 102885

Опубликована: Май 21, 2025

Язык: Английский

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Insight in limited research on environmental factors and health implications of toxic cyanobacteria bloom in African freshwater bodies

Deleted Journal, Год журнала: 2024, Номер 21(1)

Опубликована: Ноя. 20, 2024

The rapid rise of cyanotoxins production poses a serious threat to global freshwater ecosystems and has become an important issue public health. In Africa, continent facing environmental problems, including poisoning by cyanotoxins, knowledge the presence distribution these toxins remains limited. primary objective our review is assess occurrence particularly microcystins (MCs), in African ecosystems. We aim analyze limited but existing literature on this subject, focusing specifically studies published between 2001 2023. Recognizing scarcity research topic we strive elucidate emerging patterns toxin variants their correlation with variables, such as water temperature nutrient concentrations. Our investigation reveals MCs predominant cyanobacterial secondary metabolites detected across majority environments where have been documented. Furthermore, concentrations exceeded World Health Organization's (WHO) provisional guideline for lifetime human exposure through drinking water, which set at 1 µg L−1, indicated data Table 1. Highly significant positive relationships were found toxin-producing cyanobacteria factors, particular Given associated risks recommend frequent monitoring quality, development guidelines based international best practice, toxicity tests, epidemiological investigations understand health impacts cyanotoxin exposure. These measures are essential both protect well-being humans ensure sustainability aquatic

Язык: Английский

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Impact of extreme rainfall and flood events on harmful cyanobacterial communities and ecological safety in the Baiyangdian Lake Basin, China

The Science of The Total Environment, Год журнала: 2024, Номер 956, С. 177287 - 177287

Опубликована: Ноя. 9, 2024

Язык: Английский

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