Results 21 to 30 of about 427 (119)

Seasonal Variability in the Zooplankton Community Structure in a Sub-Arctic Fjord as Revealed by Morphological and Molecular Approaches [PDF]

open access: yes, 2021
Phyto- and zooplankton in Arctic and sub-Arctic seas show very strong seasonal changes in diversity and biomass. Here we document the seasonal variability in the mesozooplankton community structure in a sub-Arctic fjord in Northern Norway based on ...
Berge, Jørgen   +7 more
core   +4 more sources

Water quality related macroinvertebrate community responses to environmental gradients in the Portoviejo River (Ecuador) [PDF]

open access: yes, 2017
The Portoviejo River, located in the central western part of Ecuador, has been heavily impacted by damming, intensive agriculture and untreated wastewater discharge.
Boets, Pieter   +10 more
core   +1 more source

Vertical gradients in species richness and community composition across the twilight zone in the North Pacific Subtropical Gyre

open access: yesMolecular Ecology, Volume 26, Issue 21, Page 6136-6156, November 2017., 2017
Abstract Although metazoan animals in the mesopelagic zone play critical roles in deep pelagic food webs and in the attenuation of carbon in midwaters, the diversity of these assemblages is not fully known. A metabarcoding survey of mesozooplankton diversity across the epipelagic, mesopelagic and upper bathypelagic zones (0–1500 m) in the North Pacific
Stephanie A. Sommer   +4 more
wiley   +1 more source

The genus Boccardia (Polychaeta: Spionidae) associated with mollusc shells on the south coast of South Africa [PDF]

open access: yes, 2010
Three species of Boccardia (B. polybranchia, B. pseudonatrix and B. proboscidea) were associated with mollusc shells on the south and south-east coasts of South Africa.
Augener   +18 more
core   +2 more sources

Seasonal trophic linkages in Arctic marine invertebrates assessed via fatty acids and compound‐specific stable isotopes

open access: yesEcosphere, Volume 7, Issue 8, August 2016., 2016
Abstract Climate change is having profound impacts on Arctic ecosystems with important implications for coastal productivity and food web dynamics. We investigated seasonal variations in resource use of 16 invertebrate taxa in lagoon ecosystems along the Alaska Beaufort Sea coast using a combination of fatty acid (FA) biomarkers, bulk stable carbon ...
Stephanie D. Mohan   +4 more
wiley   +1 more source

Description of a new species of Mesochaetopterus (Annelida, Polychaeta, Chaetopteridae), with re-description of M. xerecus and an approach to the phylogeny of the family. [PDF]

open access: yes, 2008
A large chaetopterid polychaete, Mesochaetopterus rogeri sp. nov. is described as new from the Mediterranean Sea. The analyses of partial sequences from the nuclear 18S rRNA (643bp) and the mitochondrial Cytochrome Oxidase I (577bp) genes of ...
Bhaud, Michel   +3 more
core   +1 more source

Tidal effects on short-term mesozooplankton distribution in small channels of a temperate-turbid estuary, Southwestern Atlantic [PDF]

open access: yes, 2015
The short-term variability of mesozooplanktondistribution and physicochemical variables wasexamined in two different channels of the BahíaBlanca Estuary, Argentina, during two tidalcycles.
Berasategui, Anabela Anhi   +3 more
core   +5 more sources

Marine sediment infauna‐based environmental assessment using metabarcoding identifies potential impact indicator species

open access: yesEnvironmental DNA, Volume 6, Issue 3, May–June 2024.
Intertidal infaunal community data are obtained via: (1) morphological identification of macroinvertebrates from sediment cores, (2) cytochrome c oxidase subunit I (COI) DNA metabarcoding of the same pooled macroinvertebrate specimens, and (3) 18S ribosomal RNA (18S) DNA metabarcoding of benthic meiofauna from small volume sediment surface scrapes.
Rachel Hale   +5 more
wiley   +1 more source

Modelling spatial distributions of biogenic habitat‐forming taxa to inform marine spatial planning

open access: yesAquatic Conservation: Marine and Freshwater Ecosystems, Volume 34, Issue 3, March 2024.
Abstract Biogenic habitats are foundational habitats for species assemblages and drive a range of ecosystem functions. The Hauraki Gulf/Tiikapa Moana is the most intensively used coastal area in Aotearoa/New Zealand, and decades of commercial fishing, sedimentation and industrialization have degraded biogenic habitats in the Gulf.
Matthew Bennion   +13 more
wiley   +1 more source

A Comparison of Intertidal Metazoan Biodiversity Between Previously Oiled Sheared and Intact Marsh Margins and Between Multiple Salinity Zones in the Coastal Marshes of Louisiana [PDF]

open access: yes, 2021
Marshes in Louisiana are under threat from numerous natural and anthropogenic sources. A consequence of these threats are sheared marsh margins, which result from the impact of storm surge on previously oiled, weakened marsh. These conditions occurred in
Rayle, Patrick M
core   +2 more sources

Home - About - Disclaimer - Privacy