Developments in paleoenvironmental research, Journal Year: 2023, Volume and Issue: unknown, P. 379 - 391
Published: Jan. 1, 2023
Language: Английский
Water, Journal Year: 2023, Volume and Issue: 15(15), P. 2808 - 2808
Published: Aug. 3, 2023
Cyanobacteria are the most common toxigenic algae in inland waters. Their toxins can affect health of aquatic and terrestrial organisms, including humans. Other algal groups, such as haptophytes (e.g., Prymnesium parvum) euglenoids Euglena sanguinea), also form harmful blooms (HABs) whose cause injury to biota but currently have no known effects on human health. parvum, however, is responsible for some worst HAB-related ecological disasters recorded Here, we provide an overview primary found U.S. waters: cyanobacteria (planktonic forms), P. E. sanguinea with objective describing their similarities differences areas HAB ecology, toxins, potential future range expansion HABs. A detailed account bloom habitats associations land cover use provided from perspective water quality. This review revealed that salinity may influence cyanobacterial cyanotoxins had not been fully recognized previously.
Language: Английский
Citations
20
IEEE Sensors Journal, Journal Year: 2024, Volume and Issue: 24(7), P. 11414 - 11424
Published: Feb. 14, 2024
Harmful algal blooms (HABs) frequently occur in coastal and inland water bodies, resulting detrimental health economic consequences. In freshwater, HABs are often dominated by cyanobacteria (CyanoHABs or cHABs), which produce a suite of secondary metabolites ranging from taste odor compounds to liver neurological toxins. Recently, uncrewed aerial vehicles (UAVs) have emerged as cost-effective remote sensing solution for using imaging cameras monitor the distribution HABs. However, most these systems unable concurrently measure crucial parameters, requiring additional situ measurements sample collection. The UAV system developed this work presents comprehensive platform that integrates multiple sensors, including near-infrared (NIR) multispectral temperature, pH, turbidity sensors. integrated sensor can not only HAB distributions but also essential quality parameters. addition, electromechanical 3-D-printed sampling structure is designed collect samples laboratory analysis chemical biological samples. To ensure real-time data transmission, long-range wide area network (LoRaWAN) developed. An ArcGIS database implemented mapping. Comprehensive field tests been performed performance validation assessment.
Language: Английский
Citations
7
Freshwater Biology, Journal Year: 2024, Volume and Issue: 69(3), P. 335 - 350
Published: Jan. 10, 2024
Abstract The timing and causes of lake eutrophication are often obscured when multiple anthropogenic disturbances coincide in space time. This issue is particularly problematic for shallow lakes arid regions that experience strong climatic forcing which alters hydrology water levels, further conflates causal drivers. We used Utah Lake (Utah, U.S.A.) as a model system to examine how natural hydrological variability influence ecosystem structure large climates. Paleolimnological analyses sedimentary biogeochemistry, pigments, DNA, morphological fossils were identify shifts primary production evaluate the relative regional climate‐driven humans on structure. Sediment cores revealed phase prior non‐indigenous settlement included numerous macrophyte gastropod remains, DNA from plants, low organic matter, algal production. An abrupt transition occurred late 19th century concomitant with agricultural urban expansion introduction common carp, was characterised by loss macrophytes an increase phytoplankton abundance indicated pigment concentrations. A shift increased cyanobacteria c. 1950 exponential population growth wastewater influx, recorded δ 15 N values. Taken together, our data demonstrate current eutrophic state function rather than fluctuations. Furthermore, can exhibit similar patterns change between alternate states those observed northern temperate/boreal subtropical ecosystems.
Language: Английский
Citations
6
Proceedings of the Royal Society B Biological Sciences, Journal Year: 2025, Volume and Issue: 292(2040)
Published: Feb. 1, 2025
Intraspecific biodiversity can have ecosystem-level consequences and may affect the accuracy of ecological forecasting. For example, rare genetic variants traits that prove beneficial under future environmental conditions. The cyanobacterium responsible for most freshwater harmful algal blooms worldwide, Microcystis aeruginosa , occurs in at least three types. While dominant type eutrophic environments is adapted to thrive nutrient-rich conditions, two additional types recently been discovered inhabit oligotrophic genomic adaptations survival nutrient limitation. Here, we show these are widespread throughout Eastern USA. By pairing an experimental warming study with gene expression analyses, found be susceptible climate warming. In comparison, maintained their growth better persisted longer As a mechanistic explanation patterns, responded by elevated heat shock protein genes. Reduction loading has historically effective mitigation strategy controlling blooms. Our results suggest benefit M. potentially reducing effectiveness such efforts. In-depth intraspecific variation therefore improve forecasting understanding whole ecosystem dynamics.
Language: Английский
Citations
0
Toxins, Journal Year: 2025, Volume and Issue: 17(3), P. 126 - 126
Published: March 7, 2025
Cyanobacterial harmful algal blooms (cyanoHABs) are a natural phenomenon produced mainly by the interaction between and anthropogenic events. CyanoHABs characterized production of cyanotoxins that can have effects on different species within food web even affect human health. Among most prevalent toxin groups worldwide microcystins (MCs), anatoxins (ATXs), cylindrospermopsins (CYNs) nodularins (NODs), which as toxins with hepatotoxic, neurotoxic, cytotoxic effects. This review summarizes analyzes research influence cyanoHABs, main toxin-producing cyanobacteria in freshwater marine bodies, highlighting their global occurrence, toxicology, bioaccumulation dynamics vectors web, cases acute chronic intoxications humans. is useful for understanding cyanoHABs’ ecosystem impact health, how implementation surveillance management framework could generate vital information stakeholders to establish health guidelines risks hazards cyanoHABs
Language: Английский
Citations
0
Elsevier eBooks, Journal Year: 2024, Volume and Issue: unknown, P. 673 - 690
Published: Feb. 24, 2024
Language: Английский
Citations
2
Limnology and Oceanography, Journal Year: 2024, Volume and Issue: 69(6), P. 1299 - 1315
Published: April 6, 2024
Abstract Anthropogenic‐driven environmental change, including current climate warming, has influenced lake ecosystems globally during the Anthropocene. Phytoplankton are important indicators of changes in lakes and play a fundamental role maintaining functioning stability these ecosystems. However, extent to which phytoplankton were affected by anthropogenic or climatic forces Anthropocene remains unclear. Here, we investigated 160‐yr‐long dynamics community (cyanobacteria eukaryotic microalgae) response forcing Sihailongwan Maar Lake—a candidate for Global boundary Stratotype Section Point demarcation Anthropocene—using DNA metabarcoding traditional paleolimnological approaches. Our results show significant decline diversity an abrupt shift composition around 1950s, corresponding beginning “Great Acceleration” period. Specifically, taxa coexistence patterns, niche differentiation, assembly mechanisms changed significantly after 1950s. Overall, increases air temperature appear be dominant controls reorganization from this deep maar lake. A neutral model suggests that was mainly controlled stochastic processes before 1950s; however, as time progressed, deterministic effects driven global warming increased. The study imply perturbations have led loss further ecological resilience lakes, with likely knock‐on on productivity function
Language: Английский
Citations
2
IEEE Sensors Journal, Journal Year: 2024, Volume and Issue: 24(13), P. 21511 - 21519
Published: May 27, 2024
Real-time
monitoring
of
water
quality
parameters
using
optical
sensors
has
become
widespread.
However,
the
price
commercial
and
ability
to
integrate
them
into
customized
sensing
networks
can
limit
their
application
in
research
programs.
This
study
introduces
design,
verification,
validation
an
innovative,
low-cost,
portable,
low-power
fluorometer-nephelometer
device,
employing
Long-Range
Wide
Area
Network
technology.
The
developed
Internet
Things
capable
device
measure
temperature,
turbidity,
phycocyanin
fluorescence
(a
proxy
for
cyanobacteria
biomass),
chlorophyll-
Language: Английский
Citations
2
The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 954, P. 176451 - 176451
Published: Sept. 23, 2024
Language: Английский
Citations
1
Water, Journal Year: 2024, Volume and Issue: 16(7), P. 930 - 930
Published: March 23, 2024
Prymnesium parvum is a harmful alga found in brackish waters worldwide whose toxins can be lethal to aquatic organisms. Established field methods control blooms of this species, however, are unavailable. Earlier studies showed that various extracts giant reed (Arundo donax) suppress P. growth and ellipticine, an allelochemical present reed, potent algicide against species. The unintended effects products on nontarget organisms, not fully understood. This study determined the leachate (aqueous extract dried chips) ellipticine green microalga Chlorella sorokiniana; survival reproduction planktonic crustacean Daphnia pulex; hatching success, larval survival, swimming behavior teleost fish Danio rerio. Leachate made with 3 g chips L−1 was lethally toxic D. pulex, stimulated C. sorokiniana growth, impaired rerio behavior. at 1 suppressed had moderate pulex reproductive output, no Ellipticine 0.01 mg irreversibly inhibited acutely but reversibly slightly delayed reproduction, These observations suggest when applied appropriate concentrations, natural derived from used as tools specifically minimal
Language: Английский
Citations
0