Results 51 to 60 of about 7,750 (220)

Variability in the Relationship Between Ocean Phytoplankton Diversity and Carbon Biomass Across Methods and Scales

open access: yesEnvironmental Microbiology, Volume 28, Issue 9, September 2026.
The relationship between global surface ocean phytoplankton diversity and carbon biomass was broadly similar and unimodal for a paired dataset of three different metrics for phytoplankton diversity: pigment concentrations modelled from hyperspectral ocean colour data, pigment concentrations measured by high performance liquid chromatography, and 18S ...
Sasha J. Kramer
wiley   +1 more source

Impact of Abiotic Factors on the Phytoplanktonic Population of A Pond

open access: yesEnvironment Conservation Journal, 2000
An  investigation was conducted on the water  quality and phytoplanktonic diversity  of a pond. During the  present  study total  20  genera  were   recorded.
D. R. Khanna   +3 more
doaj   +1 more source

Changing Pacific Salmon Nursery Lake Ecosystem Dynamics Over Centuries to Millennia: Insights From Sedimentary DNA Metabarcoding

open access: yesEnvironmental DNA, Volume 8, Issue 4, July‐August 2026.
Sedimentary DNA metabarcoding tracks long‐term eukaryotic community change in Pacific salmon nursery lakes, revealing potential land‐use and climate influences on algal communities and resilience indicators. ABSTRACT Pacific salmon are keystone species in North Pacific freshwater, riparian, and marine ecosystems, but many populations have declined or ...
Yuanyu Cheng   +4 more
wiley   +1 more source

Precipitation Modulates the Impact of Human Activities on Riverine Food Webs Revealed by Environmental DNA

open access: yesEcology and Evolution, Volume 16, Issue 6, June 2026.
The effects of human activities on ecological networks are associated with climate, with increased precipitation weakening their negative impact. ABSTRACT The functionality of global rivers has been adversely affected by environmental pollution and habitat degradation.
Song Zhang   +5 more
wiley   +1 more source

Intra‐Annual Chlorophyll‐a Dynamics Under Hydroclimatic Extremes Derived From a 44‐Year Baseline: Insights From a Temperate River System (Nakdong River Basin, South Korea)

open access: yesWater Resources Research, Volume 62, Issue 6, June 2026.
Abstract Understanding how drought affects phytoplankton dynamics is critical for developing early warning systems. Using standardized drought indices that capture both hydrometeorological extremes, we investigated how hydrological anomalies modulate intra‐annual chlorophyll‐a (Chla) concentrations, a proxy for phytoplankton biomass, in South Korea's ...
Pamela Sofia Fabian   +2 more
wiley   +1 more source

Biosynthesis of Selenium Nanoparticles Supported on and within Diatomite through a Continuous Flow Method

open access: yesProceedings, 2020
Diatomite, also known as diatomaceous earth (DE), is a sedimentary rock formed by the deposition of shells of unicellular microscopic algae of the class Bacillariophyceae (diatoms). [...]
Luminița Dimitriu   +4 more
doaj   +1 more source

Metabarcoding of Sediment eDNA Uncovers Ecological Gradients and Biodiversity in Philippine Mangroves

open access: yesEnvironmental DNA, Volume 8, Issue 3, May–June 2026.
Community diversity metrics revealed a clear ecological gradient, with the highest diversity observed in recolonized mature stands, intermediate in the natural stands, and lowest in the restored stands. Taxonomic profiles varied with mangrove stand, age, and zonation.
Severino G. Salmo III   +3 more
wiley   +1 more source

Lista de microalgas epilíticas de la parte alta y media del río Gaira, Sierra Nevada de Santa Marta

open access: yesIntropica, 2015
El fitoplancton es uno de los principales productores primarios en los sistemas acuáticos; sin embargo, en los ríos, gran parte de la comunidad de microalgas se encuentran adheridas a las rocas, lo que ayuda a conformar el perifiton.
Angélica Cabarcas-Mier   +1 more
doaj  

OnPliocaenicus costatus(Bacillariophyceae) in Lake El’gygytgyn, East Siberia [PDF]

open access: yesEuropean Journal of Phycology, 2006
Pliocaenicus is a small, mainly fossil diatom genus that only rarely occurs in modern freshwater environments in eastern Russia. The only extant taxon of this genus, Pliocaenicus costatus , was studied from phytoplankton samples collected in Lake El'gygytgyn, a deep, ultraoligotrophic and low-conductivity crater lake in East Siberia.
Cremer, H., Vijver, B. van de
openaire   +3 more sources

Hydromagnesite Precipitation in an Ultramafic‐Hosted Alkaline Lake: Insights From Lake Salda for Jezero Crater, Mars

open access: yesJournal of Geophysical Research: Planets, Volume 131, Issue 5, May 2026.
Abstract Lake Salda (SW Turkey) is one of the most compelling terrestrial analogs for Jezero Crater on Mars due to its highly alkaline, Mg‐rich waters and hydromagnesite‐forming microbialites. This study integrates hydrochemical measurements, saturation‐index modeling, SEM–TEM imaging, and X‐ray diffraction (XRD) analysis to disentangle the biotic and ...
Mirosław Słowakiewicz   +5 more
wiley   +1 more source

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