Results 81 to 90 of about 29,783 (226)

New Zealand Guidelines for cyanobacteria in recreational fresh waters: Interim Guidelines [PDF]

open access: yes, 2009
This document is divided into four main sections, plus 14 appendices. Section 1. Introduction provides an overview of the purpose and status of the document as well as advice on who should use it. Section 2.
Hamilton, David P.   +4 more
core   +1 more source

Adaptive and Biochemical Responses of Dictyosphaerium sp. AM‐2024a to Environmental Conditions and Microplastic Interactions: Synergy of Biofuel Production With Pollution Mitigation

open access: yesBiotechnology and Applied Biochemistry, Volume 73, Issue 2, Page 768-781, April 2026.
ABSTRACT This study investigates the physiological and biochemical responses of a newly isolated microalgal strain, Dictyosphaerium sp. AM‐2024a, identified through 18S rDNA sequencing, under varying environmental conditions and microplastic (MP) interactions.
Khushboo Iqbal   +2 more
wiley   +1 more source

Biodegradation of microcystin-LR using acclimatized bacteria isolated from different units of the drinking water treatment plant [PDF]

open access: yes, 2018
Bacterial community isolated from different units of a Drinking Water Treatment Plant (DWTP) including pre-ozonation unit (POU), the effluent-sludge mixture of the sedimentation unit (ESSU) and top-sand layer water sample from the filtration unit (TSFU ...
Brar, Satinder Kaur   +6 more
core   +1 more source

Evaluating Causal Links Between Chlorophyll a and Environmental Data in the Illinois River (USA)

open access: yesEcology and Evolution, Volume 16, Issue 4, April 2026.
Chlorophyll a is widely used as a proxy for algal abundance due to its universality among algae and the practicality of measuring it with in situ sensors. In this study, we analyzed high‐frequency chlorophyll a and water quality data from the Illinois River to assess relationships between algal abundance and environmental drivers using both statistical
James H. Larson   +4 more
wiley   +1 more source

Seasonal nitrate drawdown transitions lake ecosystems from phosphorus to nitrogen deficiency in annual cycles

open access: yesLimnology and Oceanography, Volume 71, Issue 4, April 2026.
Abstract Phytoplankton biomass is often limited by nitrogen (N) and/or phosphorus (P). Quantifying the relative availability of N and P in an ecosystem is useful in indicating nutrient limitation status. In subtropical lakes, nitrate availability generally follows a seasonal pattern with maxima in the late winter/early spring and minima in late summer ...
Jasmine K. Stovall   +6 more
wiley   +1 more source

Limnological aspects of three man-made lakes in Sri Lanka [PDF]

open access: yes, 1996
An investigation was undertaken to study the physicochemical characteristics, phytoplankton and fish fauna of three major deep lakes on the River Mahaweli: Kotmale, Victoria and Randenigala.
Silva, Kumari De
core  

Atmospheric Ammonia Deposition: A Significant Source of Nitrogen to an Oligotrophic Lake and Its Watershed

open access: yesJournal of Geophysical Research: Biogeosciences, Volume 131, Issue 4, April 2026.
Abstract The increasing frequency of toxic cyanobacterial blooms (TCBs) in freshwater lakes in recent years has been problematic, both in terms of our understanding of basic drivers, and attempts to manage them. While phosphorus has been determined to limit the growth of blooms, some cyanophytes manufacture toxins with a high nitrogen (N) demand, so ...
D. P. Swaney   +5 more
wiley   +1 more source

Mitomycin C eliminates cyanobacterial transcription without detectable prophage induction in a Microcystis-dominated harmful algal bloom in Lake Erie

open access: yesMicrobiology Spectrum
Although evidence indicates that viruses are important in the ecology of Microcystis spp., many questions remain. For example, how does Microcystis exist at high, bloom-associated cell concentrations in the presence of viruses that infect it?
Robbie M. Martin   +5 more
doaj   +1 more source

Variations of bacterial community during the decomposition of Microcystis under different temperatures and biomass

open access: yesBMC Microbiology, 2019
Background The decomposition of Microcystis can dramatically change the physicochemical properties of freshwater ecosystems. Bacteria play an important role in decomposing organic matters and accelerating the cycling of materials within freshwater lakes.
Shuren Wang   +6 more
doaj   +1 more source

Phytoplankton periodicity: its motivation, mechanisms and manipulation [PDF]

open access: yes, 1982
This review summarizes some recent work to find a generalized explanation of phytoplankton periodicity in lakes. Much of the observational and experimental evidence is drawn from work centred on the large enclosures (Lund Tubes) installed in Blelham Tarn,
Reynolds, C.S.
core  

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