Results 41 to 50 of about 2,494 (176)

Phytoplankton Communities and Cyanotoxin Production in Some Bulgarian Lowland Lakes and Reservoirs

Studia Ecologiae et Bioethicae, 2022
One of the most evident consequences of eutrophication of waters is the progressive spreading of persistent cyanobacterial blooms. They are often accompanied by the production of cyanotoxins in concentrations, which are hazardous for human health.
Detelina Belkinova, Ivanka Teneva, Stefan Kazakov, Silvia Stamenova   +3 more
doaj   +1 more source

Nutrient enrichment destabilizes aquatic food webs through synchronization within and across trophic levels

Functional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Nutrient enrichment destabilizes ecosystems globally, but the mechanistic pathways underlying this effect in multi‐trophic communities remain unclear. To address this knowledge gap, we applied biodiversity–stability theory to multi‐trophic communities by partitioning ...
Libin Zhou, Shaopeng Wang, Qi Yang, Pubin Hong, You Zhang, Maowei Liang, Peng Xing, Zhigang Mao, Biao Li, Erik Jeppesen, Martin Søndergaard, Liselotte S. Johansson, Qinglong Wu   +12 more
wiley   +1 more source

Cyanotoxins Occurrence in Portugal: A New Report on Their Recent Multiplication

Toxins, 2020
Historical reports show that in Portugal, cyanotoxins reports were mainly in the Center (cylindrospermopsins) and South (cylindrospermopsins, saxitoxins) regions of the country apart from the well distributed microcystins.
Cristiana Moreira, Cidália Gomes, Vitor Vasconcelos, Agostinho Antunes   +3 more
doaj   +1 more source

Melanoma and Other Melanistic Lesions in Brown Bullhead Ameiurus nebulosus From Waterbodies in the Northeastern United States and Canada: Identification of Risk Factors

Journal of Fish Diseases, EarlyView.
ABSTRACT Melanistic lesions, including non‐raised black areas due to proliferations of melanocytes and melanomacrophages in the dermis and epidermis, as well as raised black areas consistent with melanoma, are described in brown bullhead (BBH) Ameiurus nebulosus from three water bodies in the northeastern United States and Quebec, Canada.
Vicki S. Blazer, Peter Emerson, Matthew Bodnar, Thomas Jones, David R. Russell, Matthew Pehrson, Cheyenne R. Smith, Danielle Cleveland, Mark J. Henderson, Patricia M. Mazik   +9 more
wiley   +1 more source

The Individual and Combined Effects of the Cyanotoxins, Anatoxin-a and Microcystin-LR, on the Growth, Toxin Production, and Nitrogen Fixation of Prokaryotic and Eukaryotic Algae

Toxins, 2019
Globally, eutrophication and warming of aquatic ecosystems has increased the frequency and intensity of cyanobacterial blooms and their associated toxins, with the simultaneous detection of multiple cyanotoxins often occurring.
Mathias Ahii Chia, Benjamin J. Kramer, Jennifer G. Jankowiak, Maria do Carmo Bittencourt-Oliveira, Christopher J. Gobler   +4 more
doaj   +1 more source

Recent Advances in the Use of Natural Deep Eutectic Solvents for Natural Product Sample Preparation: Focus on Purification, Characterization, and Sustainability

Journal of Separation Science, Volume 49, Issue 7, July 2026.
ABSTRACT This review examines recent advances in the use of natural deep eutectic solvents (NaDES) for natural product sample preparation, with emphasis on extraction, purification, analytical compatibility, and sustainability. NaDES emerge as versatile, tunable, and biocompatible media that enhance the recovery and stability of diverse phytochemicals ...
Valeria Cedeño‐Fierro, Juan Felipe Grisales‐Mejía, Harlen Gerardo Torres Castañeda, Jose A. Mendiola   +3 more
wiley   +1 more source

Shifting ice phenology and ice extent linked to harmful algal bloom severity

Limnology and Oceanography, Volume 71, Issue 7, July 2026.
Abstract Ice cover on lakes can have far‐reaching and profound effects on ecosystem structure and function. However, the duration and spatial extent of ice cover is changing rapidly with warming aquatic ecosystems. This loss of ice creates an urgent need to understand how lakes will function without ice cover, both during the ice‐on and ice‐free season,
Claire M. Stevens, Marguerite A. Xenopoulos   +1 more
wiley   +1 more source

Emerging health issues of cyanobacterial blooms

Annali dell'Istituto Superiore di Sanità, 2012
This paper describes emerging issue related to cyanobacterial dynamics and toxicity and human health risks. Data show an increasing cyanobacteria expansion and dominance in many environments.
Maura Manganelli, Simona Scardala, Mara Stefanelli, Francesca Palazzo, Enzo Funari, Susanna Vichi, Franca Maria Buratti, Emanuela Testai   +7 more
doaj   +1 more source

Cyanotoxins: New health risk factor in Serbia [PDF]

Archive of Oncology, 2008
Cyanobacteria are responsible for poisoning numerous cases of livestock and other animals, but sometimes they induce serious problems in humans. Mass occurrence and blooms of cyanobacteria were studied in rivers, canals, lakes, and accu­mulations that ...
Juković Mirela F., Svirčev Zorica B., Baltić Vladimir Vit., Stojanović Dejan B., Mihajlović Aleksandar I., Baltić Milan V.   +5 more
doaj   +1 more source

Initial Assessment of the Detectability of Cyanotoxin Occurrence Using PACE Satellite Observations

Geophysical Research Letters, Volume 53, Issue 11, 16 June 2026.
Abstract Microcystin is a major public health hazard during freshwater cyanobacterial blooms, yet its remote detection remains challenging because it lacks any direct optical absorption features. We demonstrate that hyperspectral observations from NASA's PACE Ocean Color Instrument (OCI) can be used to detect elevated microcystin concentrations by ...
Denesh Karunakaran, Ardeshir Ebtehaj, Lucas Clark Burnette, Miki Hondzo, Leif Olmanson   +4 more
wiley   +1 more source