Results 91 to 100 of about 15,462 (278)

Population dynamics: seasonal variation of phytoplankton functional groups in brazilian reservoirs (Billings and Guarapiranga, São Paulo) [PDF]

, 2009
A comunidade fitoplanctônica pode funcionar como sensor das variações do ambiente aquático respondendo rapidamente as essas alterações. Em sistemas aquáticos continentais é comum a coexistência de espécies que possuem as mesmas necessidades ecológicas e ...
GEMELGO, Marcina Cecilia Ponte, MUCCI, Jose Luiz Negrão, NAVAS-PEREIRA, Denise   +2 more
core   +1 more source

Pseudomonas aeruginosa aggregation and Psl expression in sputum is associated with antibiotic eradication failure in children with cystic fibrosis

Scientific Reports, 2022
We previously demonstrated that P. aeruginosa isolates that persisted in children with cystic fibrosis (CF) despite inhaled tobramycin treatment had increased anti-Psl antibody binding in vitro compared to those successfully eradicated.
Amanda J. Morris, Yvonne C. W. Yau, Subin Park, Shafinaz Eisha, Nancy McDonald, Matthew R. Parsek, P. Lynne Howell, Lucas R. Hoffman, Dao Nguyen, Antonio DiGiandomenico, Ashley M. Rooney, Bryan Coburn, Lucia Grana-Miraglia, Pauline Wang, David S. Guttman, Daniel J. Wozniak, Valerie J. Waters   +16 more
doaj   +1 more source

Extreme summer storm elicits shifts in biogeochemistry, primary productivity, and plankton community structure in a large‐scale lake enclosure experiment

Limnology and Oceanography Letters, Volume 11, Issue 1, January 2026.
Abstract Climate change increases the magnitude and frequency of extreme weather events. This includes severe summer storms altering lake physical structure, biodiversity and ecosystem processes. However, insights into lake responses to extreme storms and the underlying mechanisms primarily rest on unreplicated and observational case studies, without ...
Hans‐Peter Grossart, Thomas Hornick, Stella A. Berger, Jens C. Nejstgaard, Michael T. Monaghan, Takeshi Miki, Darren P. Giling, Geza B. Selmeczy, Judit Padisak, Jörg Sareyka, Peter Kasprzak, Christian Wurzbacher, Georgiy Kirillin, Christof Engelhardt, Mark O. Gessner   +14 more
wiley   +1 more source

Strength and uncertainty of phytoplankton metrics for assessing eutrophication impacts in lakes [PDF]

, 2013
Phytoplankton constitutes a diverse array of short-lived organisms which derive their nutrients from the water column of lakes. These features make this community the most direct and earliest indicator of the impacts of changing nutrient conditions on ...
Borics, G., Carvalho, L., Catalan, J., De Hoyos, C., Drakare, S., Dudley, B.J., Jarvinen, M., Laplace-Treyture, C., Lyche Solheim, A., Maileht, K., McDonald, C., Mischke, U., Moe, J., Morabito, G., Noges, P., Noges, T., Ott, I., Pasztaleniec, A., Phillips, G., Poikane, S., Skjelbred, B., Thackeray, S.J.   +21 more
core   +2 more sources

Epilithic Algal and Meiofaunal Assemblages of Arctic/Alpine Lakes and Streams Along Latitudinal and Environmental Gradients in Scandinavia

Freshwater Biology, Volume 71, Issue 1, January 2026.
ABSTRACT Epilithic biofilms along a latitudinal gradient of Arctic/alpine lakes and streams were analysed for their composition of algae (incl. cyanobacteria) and meiofaunal assemblages and correlated these with environmental variables. The composition of algal, meiofauna and nematode assemblages differed between lakes and streams.
Willem Goedkoop, Sebastian Höss, Fernando Chaguaceda, Kirsten S. Christoffersen, Walter Traunspurger   +4 more
wiley   +1 more source

Molecular Characterization and Clonal Analysis of Carbapenem‐Resistant Acinetobacter baumannii: Insights Into Biofilm‐Related Gene Coexistence in Clinical Isolates

BioMed Research International, Volume 2026, Issue 1, 2026.
The emergence of multidrug‐resistant Acinetobacter baumannii (MDR A. baumannii) and biofilm‐producing ability have become a worldwide serious concern. This study is aimed at investigating the clonal relationships, coexistence of carbapenemase‐resistant and biofilm‐related genes, and biofilm biomass capacity in 57 A.
Mahtab Hadadi, Bahram Nasr Esfahani, Arezoo Mirzaei, Sharareh Moghim, Baisakhi Banerjee   +4 more
wiley   +1 more source

Inferring phytoplankton carbon and eco-physiological rates from diel cycles of spectral particulate beam-attenuation coefficient [PDF]

, 2011
The diurnal fluctuations in solar irradiance impose a fundamental frequency on ocean biogeochemistry. Observations of the ocean carbon cycle at these frequencies are rare, but could be considerably expanded by measuring and interpreting the inherent ...
C. Courties, E. Boss, G. Dall'Olmo, L. Prieur, M. J. Behrenfeld, M. Pujo-Pay, N. Hardman-Mountford, T. K. Westberry, T. Moutin   +8 more
core   +5 more sources

Sensitivity of Water Clarity to Drawdown in Reservoirs Across the Climatic 100th Meridian

Geophysical Research Letters, Volume 52, Issue 23, 16 December 2025.
Abstract Reservoirs provide key water storage in regions facing projected water scarcity and population growth. Many reservoirs experience water level fluctuations including periods of drawdown tied to drought. To examine sensitivity of water clarity to drawdown, we compiled 30 years of water level and Secchi depth measurements in southern Great Plains
S. M. Powers, J. T. Scott, J. T. Jatko, M. S. Macleod, C. J. Robbins, M. P. Sako   +5 more
wiley   +1 more source

Dominance and compensatory growth in phytoplankton communities under salinity stress [PDF]

, 2010
Increasing levels of environmental stress due to global warming and eutrophication, and concerns about an unparalleled global diversity loss, have triggered new interest in the question whether the stability of ecosystem properties depends on population ...
Burns, Carolyn W., Flöder, Sabine, Jaschinski, Sybill, Wells, Gudrun   +3 more
core   +1 more source

Mapeamento do biovolume de plantas aquáticas submersas a partir de dados hidroacústicos e imagem multiespectral de alta resolução Mapping the bio-volume of submerged aquatic vegetation through hydro-acoustic data and high-resolution multi-spectral imaging

Planta Daninha, 2012
As plantas aquáticas têm papel fundamental no equilíbrio dos ecossistemas, porém seu crescimento desequilibrado pode obstruir canais, represas e reservatórios e afetar múltiplos usos da água.
L. Sabo Boschi, M.L.B.T. Galo, L.H.S. Rotta, F.S.Y. Watanabe   +3 more
doaj   +1 more source