Results 111 to 120 of about 434,025 (228)

Harmful algal blooms and Vibrio spp. association in fishing and marine farming areas of mollusk bivalves in Sechura and Pisco bays, Peru

open access: yesRevista Peruana de Biología, 2017
Between February 2010 and May 2014, 22 surveys in Pisco and 16 in Sechura were conducted; both are major areas for shellfish production and mariculture in Peru.
Rita Orozco   +3 more
doaj   +1 more source

The Zooplankton International Geospatial dataset: A global repository of spatiotemporal freshwater zooplankton community composition data from lakes and reservoirs to support ecological research

open access: yesLimnology and Oceanography Letters, Volume 11, Issue 5, September 2026.
Abstract Zooplankton transfer substantial energy in aquatic food webs and are used as indicators of environmental change. Syntheses of zooplankton community dynamics globally require datasets that span a wide range of environmental gradients; however, these datasets are limited due to methodological differences across programs, taxonomic ...
Stephanie E. Figary   +142 more
wiley   +1 more source

A 150-year river water quality record shows reductions in phosphorus loads but not in algal growth potential

open access: yesCommunications Earth & Environment
Eutrophication and proliferation of nuisance and harmful algal blooms are a major cause of water-quality impairment globally. Here, we analyze the world’s longest continuous (150-year) river water-quality dataset for the River Thames, U.K.
Helen P. Jarvie   +3 more
doaj   +1 more source

Statistical filtering to aid in the sorting of phytoplankton: The effects of image library size and phytoplankton shape

open access: yesLimnology and Oceanography: Methods, Volume 24, Issue 9, September 2026.
Abstract The demand for efficient image sorting methods has increased due to technological advancements that enable more intensive phytoplankton monitoring. Both statistical and machine learning algorithms can misidentify algal taxa in taxonomically diverse samples, in which phytoplankton morphology and image traits can vary.
Christopher R. Farrow, Josef D. Ackerman
wiley   +1 more source

Image processing for smart browsing of ocean colour data products and subsequent incorporation into a multi-modal sensing framework [PDF]

open access: yes, 2010
Ocean colour is defined as the water hue due to the presence of tiny plants containing the pigment chlorophyll, sediments and coloured dissolved organic material and so water colour can provide valuable information on coastal ecosystems.
Ó Conaire, Ciarán   +7 more
core   +2 more sources

Bloom-forming cyanobacteria and dinoflagellates in five Argentinian reservoirs: Multi-year sampling

open access: yesWater Biology and Security
Harmful algal blooms are important threats to reservoir condition. Over a 15-year period, we sampled five Argentinian reservoirs to identify the responsible species for harmful algal blooms and determine the water quality factors driving their occurrence.
Florencia Soledad Alvarez Dalinger   +4 more
doaj   +1 more source

Refining techniques for high‐frequency monitoring of chlorophyll a fluorescence in estuarine systems

open access: yesLimnology and Oceanography: Methods, Volume 24, Issue 9, September 2026.
Abstract Concentrations of the photosynthetic pigment chlorophyll a are commonly used as a proxy for phytoplankton biomass in aquatic systems. Traditional methods for extracting chlorophyll a in discrete samples limit measurement frequency, while in situ sensor technology provides high frequency chlorophyll a fluorescence measurements at a more ...
Nicole Dix   +10 more
wiley   +1 more source

Volatile Organic Compounds in Rainwater: A New Frontier in Atmosphere–Biosphere Interactions

open access: yesJournal of Geophysical Research: Biogeosciences, Volume 131, Issue 9, September 2026.
Abstract Rainwater is a key vector of atmospheric deposition, linking the atmosphere with terrestrial and aquatic ecosystems. While the inorganic chemistry of precipitation (dominated by sulfate, nitrate, ammonium, and trace metals) has been extensively studied, organic compounds in rainwater have received less attention, and Volatile Organic Compounds
Ana M. Yáñez‐Serrano   +6 more
wiley   +1 more source

Management Participants Perceive That Structural Barriers, Not Information Needs, Most Impede Adaptation in U.S. Fisheries Management

open access: yesFish and Fisheries, Volume 27, Issue 5, Page 1151-1165, September 2026.
ABSTRACT Fisheries are facing increasingly frequent and severe climate change‐related stressors such as marine heatwaves, harmful algal blooms, and species distribution shifts. Many fisheries management bodies have been working to increase the capacity of their regulatory systems to adapt to these new conditions, but progress has been slow and ...
Abigail S. Golden   +6 more
wiley   +1 more source

Comparative genomics reveals the molecular basis for divergent algicidal strategies in two Alteromonas macleodii strains

open access: yesApplied and Environmental Microbiology
Marine bacteria such as Alteromonas are key players in regulating algal blooms, yet the genomic basis for their strain-specific algicidal activities remains poorly understood.
Yuxin Lai   +4 more
doaj   +1 more source

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