Results 31 to 40 of about 4,722 (202)

The protist community traces seasonality and mesoscale hydrographic features in the oligotrophic Sargasso Sea

open access: yesFrontiers in Marine Science, 2022
Protists represent the majority of the eukaryotic diversity in the oceans. They have different functions in the marine food web, playing essential roles in the biogeochemical cycles.
Leocadio Blanco-Bercial   +5 more
doaj   +1 more source

An 18S V4 rRNA metabarcoding dataset of protist diversity in the Atlantic inflow to the Arctic Ocean, through the year and down to 1000 m depth [PDF]

open access: yesEarth System Science Data, 2021
Arctic marine protist communities have been understudied due to challenging sampling conditions, in particular during winter and in deep waters. The aim of this study was to improve our knowledge on Arctic protist diversity through the year, in both the ...
E. Egge   +8 more
doaj   +1 more source

Succession of marine epipelagic communities

open access: yesMarine Ecology Progress Series, 1984
Criteres d'evaluation des stades de developpement des biocenoses planctoniques. Successions observees dans les caracteristiques structurelles et fonctionnelles des biocenoses en developpement. Les biocenoses des zones frontales. Comparaison des caracteristiques structurelles et fonctionnelles des biocenoses en developpement dans l'Ocean Pacifique sud ...
ME Vinogradov, EA Shushkina
openaire   +1 more source

Long-term patterns of hydrocarbon biodegradation and bacterial community composition in epipelagic and mesopelagic zones of an Arctic fjord

open access: yes, 2023
Oil spill attenuation in Arctic marine environments depends on oil-degrading bacteria. However, the seasonally harsh conditions in the Arctic such as nutrient limitations and sub-zero temperatures limit the activity even for bacteria capable of ...
Vergeynst, Leendert   +17 more
core   +1 more source

Measures and models of visual acuity in epipelagic and mesopelagic teleosts and elasmobranchs

open access: yesJournal of Comparative Physiology A, 2023
AbstractEyes in low-light environments typically must balance sensitivity and spatial resolution. Vertebrate eyes with large "pixels" (e.g., retinal ganglion cells with inputs from many photoreceptors) will be sensitive but provide coarse vision. Small pixels can render finer detail, but each pixel will gather less light, and thus have poor signal ...
Caves, Eleanor M.   +3 more
openaire   +4 more sources

Long-term dynamics of forage base and food supply for nekton in the upper epipelagic layer of the western Bering Sea. Part 1. Composition and abundance of zooplankton and small-sized nekton

open access: yesИзвестия ТИНРО, 2022
An updated concept for the state, dynamics, and production of plankton communities in the upper epipelagic layer of the western Bering Sea is presented based on the timeseries for 1986–2020.
S. V. Naydenko   +3 more
doaj   +1 more source

Using a recreational grade echosounder to quantify the potential prey field of coastal predators.

open access: yesPLoS ONE, 2019
Quantifying the distribution of prey greatly improves models of habitat use by marine predators and can assist in determining threats to both predators and prey.
Tom Brough   +2 more
doaj   +1 more source

Epipelagic representations and rigid local systems [PDF]

open access: yesSelecta Mathematica, 2016
We construct automorphic representations for quasi-split groups $G$ over the function field $F=k(t)$ one of whose local components is an epipelagic representation in the sense of Reeder and Yu. We also construct the attached Galois representations under the Langlands correspondence.
openaire   +2 more sources

Genomic Comparison and Spatial Distribution of Different Synechococcus Phylotypes in the Black Sea

open access: yesFrontiers in Microbiology, 2020
Picocyanobacteria of the genus Synechococcus are major contributors to global primary production and nutrient cycles due to their oxygenic photoautotrophy, their abundance, and the extensive distribution made possible by their wide-ranging biochemical ...
Andrea Di Cesare   +15 more
doaj   +1 more source

Significance of gene variants for the functional biogeography of the near-surface Atlantic Ocean microbiome

open access: yesNature Communications, 2022
The taxonomic and functional diversity of marine microbial communities are shaped by both environmental and biotic factors. Here, the authors investigate the functional biogeography of epipelagic prokaryotic communities along a 13,000-km transect in the ...
Leon Dlugosch   +6 more
doaj   +1 more source

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