Results 71 to 80 of about 22,777 (290)

Shallow‐lake sediments release nutrients by complete destratification events

Journal of Environmental Quality, EarlyView.
Abstract The development of phytoplankton communities in hypereutrophic shallow lakes, often used for aquaculture, is not fully understood and can sometimes be unpredictable. Focusing on the abiotic factors that regulate their succession, we recorded short‐term mixing events in a shallow lake and examined their relationship with nutrient release from ...
Jiří Jan, Felipe Breton, Jakub Borovec
wiley   +1 more source

Occurrence and Distribution of Cyanobacteria and their Toxins in Silver Lake, New Hampshire [PDF]

, 2008
A study of Silver Lake, NH was performed as part of a 5-lake assessment of cyanobacteria prevalence and distribution. Multi-parameter fluorescence probe measurements of chlorophyll a and cyanobacteria concentrations (PC, phycocyanin fluorescence) were ...
Morison, Françoise
core   +1 more source

New Method for Simultaneous Determination of Microcystins and Cylindrospermopsin in Vegetable Matrices by SPE-UPLC-MS/MS [PDF]

, 2018
Cyanotoxins are a large group of noxious metabolites with different chemical structure and mechanisms of action, with a worldwide distribution, producing effects in animals, humans, and crop plants.
Cameán Fernández, Ana María, Campos, Alexandre, Díez-Quijada Jiménez, Leticia, Guzmán Guillén, Remedios, Jos Gallego, Ángeles Mencía, Llana Ruiz-Cabello, María, Prieto Ortega, Ana Isabel, Vasconcelos, Vitor   +7 more
core   +1 more source

Nutrient pulse scenarios drive contrasting patterns in the functional stability of freshwater phytoplankton

Limnology and Oceanography, EarlyView.
Abstract Climate change is increasing the frequency, intensity, and stochasticity of extreme weather events such as heavy rainfall, storm‐induced mixing, or prolonged drought periods. This results in more variable regimes of dissolved nutrients and carbon in lakes and induces temporal fluctuations in the resource availability for plankton communities ...
Anika Happe, Bence Buttyán, Bence Gergácz, Silke Langenheder, Stella A. Berger, Jens C. Nejstgaard, Maren Striebel   +6 more
wiley   +1 more source

Amplicon-based and metagenomic approaches provide insights into toxigenic potential in understudied Atlantic Canadian lakes

FACETS, 2022
Cyanobacterial blooms and their toxigenic potential threaten freshwater resources worldwide. In Atlantic Canada, despite an increase of cyanobacterial blooms in the last decade, little is known about the toxigenic potential and the taxonomic affiliation ...
Cecilio Valadez-Cano, Kristen Hawkes, Rossella Calvaruso, Adrian Reyes-Prieto, Janice Lawrence   +4 more
doaj   +1 more source

What makes a cyanobacterial bloom disappear? A review of the abiotic and biotic cyanobacterial bloom loss factors

Harmful Algae
Cyanobacterial blooms present substantial challenges to managers and threaten ecological and public health. Although the majority of cyanobacterial bloom research and management focuses on factors that control bloom initiation, duration, toxicity, and geographical extent, relatively little research focuses on the role of loss processes in blooms and ...
Harris, Ted D., Reinl, Kaitlin L., Azarderakhsh, Marzi, Berger, Stella A., Berman, Manuel Castro, Bizic, Mina, Bhattacharya, Ruchi, Burnet, Sarah H., Cianci-Gaskill, Jacob A., Domis, Lisette N. de Senerpont, Elfferich, Inge, Ger, K. Ali, Grossart, Hans-Peter F., Ibelings, Bas W., Ionescu, Danny, Kouhanestani, Zohreh Mazaheri, Mauch, Jonas, McElarney, Yvonne R., Nava, Veronica, North, Rebecca L., Ogashawara, Igor, Paule-Mercado, Ma. Cristina A., Soria-Píriz, Sara, Sun, Xinyu, Trout-Haney, Jessica V., Weyhenmeyer, Gesa A., Yokota, Kiyoko, Zhan, Qing   +27 more
openaire   +3 more sources

Unexplained interannual oscillations of cyanobacterial blooms in the Baltic Sea [PDF]

Scientific Reports, 2018
AbstractPopulation oscillations in multi-species or even single species systems are well-known but have rarely been detected at the lower trophic levels in marine systems. Nitrogen fixing cyanobacteria are a major component of the Baltic Sea ecosystem and sometimes form huge surface accumulations covering most of the sea surface.
Mati Kahru, Ragnar Elmgren, Emanuele Di Lorenzo, Oleg Savchuk   +3 more
openaire   +4 more sources

Picophytoplankton act as the primary consumers of excess phosphorus after the spring bloom in the eutrophic Baltic Sea

Limnology and Oceanography, EarlyView.
Abstract Eutrophication in the Baltic Sea has caused an imbalance in the inorganic nitrogen (N) to phosphorus (P) ratio, leaving excess phosphate (PO4) after the phytoplankton spring bloom that terminates after N depletion. Using monitoring data, we demonstrated that the PO4 concentration has continued to increase in the outermost Gulf of Finland ...
Kristian Spilling, Mari Vanharanta, Mariano Santoro, Cristian Villena‐Alemany, Matthias Labrenz, Hans‐Peter Grossart, Kasia Piwosz   +6 more
wiley   +1 more source

Blooms of filamentous cyanobacteria reduce zooplankton quality and pelagic food web efficiency

Limnology and Oceanography, EarlyView.
Abstract Cyanobacterial blooms in marine and freshwater ecosystems have increased in magnitude, frequency, and distribution worldwide during recent decades. Filamentous cyanobacteria are of unsuitable size for mesozooplankton feeding and of poorer nutritional quality than other phytoplankton taxa. The production and quality of higher trophic levels are
Tharindu Bandara, Sonia Brugel, Danny Chun Pong Lau, Iveta Jurgensone, Evelina Griniene, Andrius Garbaras, Laurynas Butkus, Laurynas Bučinskas, Emil Fridolfsson, Jacob Carstensen, Agneta Andersson   +10 more
wiley   +1 more source

Light and temperature as triggers for surface filamentous green algal blooms in shallow freshwater systems

Limnology and Oceanography, EarlyView.
Abstract Blooms of filamentous green algae (FGA) form dense mats at the surface of shallow freshwaters and have multiple negative impacts on aquatic ecosystem functions, services, and aesthetics. Although nutrient enrichment in freshwaters is a primary driver of excessive FGA growth, much less is known about other abiotic factors controlling bloom ...
Hannah R. Kemp, Alexandra Zieritz, Stephen J. Dugdale, Nico R. Helmsing, Suzanne Wiezer, Lisette N. de Senerpont Domis, Stephen C. Maberly, Martyn Kelly, Suzanne McGowan   +8 more
wiley   +1 more source