Results 41 to 50 of about 313 (137)

Co-occurrence of anatoxin-a and microcystins in Lake Garda and other deep subalpine lakes

Advances in Oceanography and Limnology, 2020
Cyanotoxins are a global concern in freshwaters and eutrophication and climate changes can have synergistic effects in exacerbating the problem. Deep Subalpine Lakes (DSL) are a group of lakes of huge economic and naturalistic importance in Italy ...
Leonardo Cerasino, Nico Salmaso
doaj   +1 more source

Algal Blooms in Lakes Increase After Wildfire Smoke Events in the Contiguous United States

Global Change Biology Communications, Volume 1, Issue 1, March 2026.
Temporary pulses of surface chlorophyll‐a are identified following wildfire smoke events in lakes and reservoirs across the United States. ABSTRACT Area burned by wildfire has increased in the contiguous United States and in many places globally in recent years, impacting communities and ecosystems nearby and even far downwind of fires. We examined the
Nicole E. Olson, Meredith M. Brehob, Robert D. Sabo, Irena Pavlovic, Kathleen I. Shank, Sam Penry, Amalia M. Handler, Michael J. Pennino, R. Byron Rice, Katie L. Boaggio, Stephen D. LeDuc   +10 more
wiley   +1 more source

Detoxification of Cylindrospermopsin by Pyrite in Water [PDF]

Catalysts, 2019
Cylindrospermopsin (CYN) is a cyanobacterial toxin released from eutrophic water. It persistently remains in the environment because its degradation under solar light is extremely low. In this study, pyrite, an abundant mineral, was investigated as a catalyst for decomposing and detoxifying CYN in water. A detailed examination of intermediates provided
Shulian Wang, Yongmei Chen, Yiying Jiao, Zhu Li   +3 more
openaire   +1 more source

Cyanobacteria and Cyanotoxins in Mediterranean Reservoirs: Ecological Variability, Risks and Implications for Water Quality Assessment

Ecohydrology, Volume 19, Issue 1, January‐February 2026.
ABSTRACT The increasing demand for freshwater, in combination with climate change and pollution, compromises the quality and quantity of water resources. These pressures have intensified cyanobacterial blooms, including toxic events that threaten human health and aquatic ecosystems. This study complements the objectives of the Water Framework Directive
Ivo Pinto, Raquel Silva, Guilherme Scotta Hentschke, Vítor Vasconcelos, João Morais, Luísa Azevedo, Sara C. Antunes   +6 more
wiley   +1 more source

Nutrient‐driven regulation of saxitoxin gene expression and toxin production in Raphidiopsis raciborskii (Cyanobacteria)

Journal of Phycology, Volume 61, Issue 6, Page 1738-1752, December 2025.
Abstract Raphidiopsis raciborskii is a diazotrophic cyanobacterium, globally distributed in aquatic environments and known for forming toxic blooms, thereby affecting ecosystem services. South American strains are producers of saxitoxins, potent neurotoxins harmful to humans and animals.
Mehrzad Zare, Bruna Barçante, Juliana da Silva Martins Pimentel, Alessandra Giani   +3 more
wiley   +1 more source

Screening the toxicity and toxin content of blooms of the cyanobacterium Trichodesmium erythraeum (Ehrenberg) in northeast Brasil

Journal of Venomous Animals and Toxins including Tropical Diseases, 2009
Blooms of the cyanobacterium Trichodesmium occur in massive colored patches over large areas of tropical and subtropical oceans. Recently, the interest in such events has increased given their role in major nitrogen and carbon dioxide oceanic fluxes ...
LAO Proença, MS Tamanaha, RS Fonseca
doaj   +1 more source

Interactive effects of stoichiometry and environmental variability regulate cyanobacteria toxicity in two eutrophic bays

Limnology and Oceanography, Volume 70, Issue 11, Page 3506-3519, November 2025.
Abstract Cyanobacteria blooms are a leading threat to water quality globally. Despite this, the timing and frequency of toxin production associated with harmful blooms are not well understood. Here we explore cyanobacteria bloom dynamics and cyanotoxin production in two heavily instrumented shallow, eutrophic bays of Lake Champlain through the lens of ...
Katelynn E. Warner, Andrew W. Schroth, Megan Petrine, Alex Bernich, Nicole D. Wagner, Bofan Wei, Gregory L. Boyer, Ana M. Morales   +7 more
wiley   +1 more source

Effects of the cyanobacteria Microcystis aeruginosa on eastern oyster feeding

Ecosphere, Volume 16, Issue 9, September 2025.
Abstract The eastern oyster, Crassostrea virginica, is an estuarine consumer of considerable ecological and economic value, with the ability to selectively feed from a mixed phytoplankton community. Estuarine phytoplankton communities are experiencing an increased presence of small, nutritionally poor, salt‐tolerant, and potentially toxic cyanobacteria,
Julia A. Sweet, Sandra M. Casas, Jerome F. La Peyre, Mark A. Genung, Beth A. Stauffer   +4 more
wiley   +1 more source

A comparative study of the metabolic profiles of common nuisance cyanobacteria in southern perialpine lakes

Advances in Oceanography and Limnology, 2017
This work allowed the comparison of the metabolic profiles of the most important cyanobacteria species in southern perialpine lakes, namely Aphanizomenon flos-aquae, Dolichospermum lemmermannii, Microcystis aeruginosa, Planktothrix rubescens, and ...
Leonardo Cerasino, Camilla Capelli, Nico Salmaso   +2 more
doaj   +1 more source

Effects of Seasonal Dynamics on Cyanobacteria Proliferation in Aquaculture Fish Ponds

Aquaculture Research, Volume 2025, Issue 1, 2025.
Aquaculture production supports the United Nations Sustainable Development Goals (SDGs), especially SDG 2 (Zero Hunger), by enhancing food security and sustainable practices. This study investigated the seasonal dynamics of cyanobacterial (CB) blooms in aquaculture fishponds in South Africa (SA) and Nigeria (NGA). Water samples were collected twice per
Odo J. Bassey, Jabulani R. Gumbo, Mulalo I. Mutoti   +2 more
wiley   +1 more source