Results 41 to 50 of about 4,847 (177)

Along the Benthic to Holoplanktonic Continuum: Seafloor Affinity Increases Distance‐Decay Rates Among Abyssal Communities

open access: yesGlobal Ecology and Biogeography, Volume 35, Issue 8, August 2026.
ABSTRACT Aim Marine species ranges are often large, contributing to relatively high community similarity over space, with decreased ranges expected among taxa that have lower dispersal and/or higher substrate requirements. We tested for a weakening of biogeographic structuring among dispersing abyssal taxa along the benthic to holoplanktonic habitat ...
Gabrielle N. Ellis   +5 more
wiley   +1 more source

Abiotic Drivers of Groundwater Fauna Across Aquifer Types and Urban–Rural Gradients in the City of Halle (Saale), Germany

open access: yesEcohydrology, Volume 19, Issue 5, July/August 2026.
ABSTRACT Subterranean ecosystems in urban environments are exposed to multiple anthropogenic stressors that compromise groundwater quality and biodiversity. Rising groundwater temperatures, oxygen depletion, hydraulic disturbance and chemical contamination are among the main pressures.
Laura Meyer   +3 more
wiley   +1 more source

Metabarcoding of Broad‐Diet Nototheniid Fish Stomachs Reveals Newly Detected Antarctic Parasite Signals and Potential Host Associations

open access: yesEnvironmental DNA, Volume 8, Issue 4, July‐August 2026.
Using 18S rDNA metabarcoding of stomach contents from two Antarctic nototheniid fishes, we detected 242 parasite OTUs. Protists dominated diversity, metazoans dominated abundance, and depth structured assemblages. Novel parasite–host associations and previously unreported pathogenic protists highlight fish metabarcoding as a tool for biodiversity and ...
Micaela B. Ruiz   +6 more
wiley   +1 more source

Inventory of Annelida Polychaeta in Gulf of Oran (Western Algerian Coastline)

open access: yesZoodiversity, 2021
Bionomical research on the continental shelf of the Oran‘s Gulf enabled us to study the Annelida macrofauna. Sampling sites were selected according to the bathymetry, which was divided into eight transects.
A. Kerfouf   +4 more
doaj  

Una nueva especie de Paradoneis Hartman, 1965 (Annelida: Paraonidae) procedente del NE de la península Ibérica (SE del golfo de Vizcaya, NE del océano Atlántico)

open access: yesGraellsia, 2019
Una especie nueva del género Paradoneis Hartman, 1965 (Annelida, Paraonidae) ha sido identificada en fondos blandos del País Vasco (NE de la península Ibérica, SE del golfo de Vizcaya). La nueva especie se caracteriza principalmente por su pequeña talla,
Julián Martínez
doaj   +1 more source

eDNA Metabarcoding Enhances Aquaculture Impact Monitoring Across Microbial and Benthic Metazoan Communities in Understudied Tropical Environments

open access: yesEnvironmental DNA, Volume 8, Issue 4, July‐August 2026.
Benthic community responses to aquaculture organic matter enrichment remain poorly understood in tropical low‐input farms typical of scattered island socio‐ecosystems. Detecting these responses requires sensitive approaches such as eDNA metabarcoding across multiple biological groups.
Charlotte Moritz   +12 more
wiley   +1 more source

Annelida [PDF]

open access: yesPhilosophical Transactions of the Royal Society of London, 1879
Abstract The Annelids obtained are few in number and belong to two species :— Perichaeta, Schmd. Perichaeta rodericensis. Longius vermiformis, anteriora versus citius magisque attenuata, teres, ex carneo flavescens, læte iricolor, paulo pellucida, segmentis fere 110, ante 17mumsitis majoribus, pæne 2-plo latioribus, posterioribus 3 ...
openaire   +1 more source

Exploring Mesophotic Coral Reef Boundaries Using Environmental DNA Metabarcoding

open access: yesEnvironmental DNA, Volume 8, Issue 4, July‐August 2026.
Environmental DNA (eDNA) metabarcoding reveals boundaries along depth gradients in shallow and mesophotic coral reefs. Analysis of metazoan amplicon sequence variants (ASVs) uncovers changes in community structure from shallow to deep reefs, highlighting a localized eDNA footprint and its potential for monitoring mesophotic and deep‐sea habitats ...
Aran Sofer, Omri Bronstein
wiley   +1 more source

Complete mitochondrial genome of the ragworm annelid Hediste diversicolor (of Müller, 1776) (Annelida: Nereididae)

open access: yesMitochondrial DNA. Part B. Resources, 2021
Marine annelids are a globally distributed and species-rich group, performing important ecological roles in macrobenthic communities. Yet, the availability of molecular resources to study these organisms is scarcer, comparatively with other phyla.
André Gomes-dos-Santos   +6 more
doaj   +1 more source

Polychromatic Population of Bioluminescent Organisms in the Deep Pacific Ocean

open access: yesJournal of Geophysical Research: Oceans, Volume 131, Issue 7, July 2026.
Abstract We present a comprehensive study of deep‐sea bioluminescent organisms in the Cascadia Basin, Northeast Pacific Ocean, based on four years (2020–2023) of in situ measurements using STRings for Absorption length in Water instruments. Analysis of over 1.3 million camera images and continuous photomultiplier tube recordings revealed that ...
Ruohan Li   +24 more
wiley   +1 more source

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