Results 31 to 40 of about 11,505 (259)

Preliminary Data on the Bioturbation Activity of Hediste Diversicolor (Polychaeta, Nereididae) from the Loire Estuary, France [PDF]

open access: yes, 2012
The ragworm Hediste diversicolor (O. F. Müller, 1776) plays a key role in the estuarine water-sediment interface. This scientific project comes under the framework of the International network Nereis Park Experiment gathering 27 laboratories from all ...
Mouloud, Mohammed   +4 more
core   +1 more source

Shell accumulation on seabed due to suspended coastal oyster farming and effects on burrowing capacity of the polychaete Perinereis aibuhitensis

open access: yesFrontiers in Marine Science, 2023
Mariculture of bivalves (e.g., mussels, scallops, and oysters) is developing rapidly in coastal waters. This process releases shell debris that can accumulate on the seabed under farms.
Yujie Cao   +12 more
doaj   +1 more source

Imaging Oxygen Distribution in Marine Sediments. The Importance of Bioturbation and Sediment Heterogeneity [PDF]

open access: yes, 2008
The influence of sediment oxygen heterogeneity, due to bioturbation, on diffusive oxygen flux was investigated. Laboratory experiments were carried out with 3 macrobenthic species presenting different bioturbation behaviour patterns:the polychaetes ...
Poggiale, Jean-Christophe   +3 more
core   +1 more source

Biomineralization of primary carbonate cements: a new biosignature in the fossil record from the Anisian of Southern Italy

open access: yesLethaia, EarlyView., 2021
Biomineralization is a generic term used to indicate biological‐mediated mineral formation. In carbonate mineralization, nucleation of crystals can be: (1) controlled directly by the organisms, like in the skeletal formation of most metazoans; (2) induced by microbial communities, by indirect precipitation mediated by their metabolic activities; or (3)
Adriano Guido   +4 more
wiley   +1 more source

Raised water temperature enhances benthopelagic links via intensified bioturbation and benthos-mediated nutrient cycling [PDF]

open access: yesPeerJ
Sediment reworking by benthic infauna, namely bioturbation, is of pivotal importance in expansive soft-sediment environments such as the Wadden Sea. Bioturbating fauna facilitate ecosystem functions such as bentho-pelagic coupling and sediment nutrient ...
Eilish M. Farrell   +3 more
doaj   +2 more sources

Burial and reactivity of sedimentary microalgal lipids in bioturbated Mediterranean coastal sediments [PDF]

open access: yes, 2003
The fate of microalgal lipid biomarkers in marine coastal sediments when acted on by natural bioturbation processes (Carteau Bay, Gulf of Fos, Mediterranean Sea) was studied under laboratory conditions.
Caradec, Sarah   +2 more
core   +1 more source

The interactive effect of sandprawn (Callichirus kraussi) stebbing bioturbation and nutrients on macrofaunal communities [PDF]

open access: yes, 2011
My thesis combined an observational study and field and laboratory experiments to investigate how nutrients and bioturbation by C.
Cooper, Rachel
core   +1 more source

Radium and Lead Radioisotopes Composition of Sediment and Its Biogeochemical Implication in Polymetallic Nodule Area of Clario-Clipperton Zone

open access: yesMolecules, 2022
Radioactivity levels of 210Pb and 226Ra were detected in a sediment core obtained using a multi-corer from the polymetallic nodule area inside the Clarion-Clipperton Zone (CCZ), a contract area of the China Ocean Mineral Resources Association (COMR) in ...
Feng Lin   +4 more
doaj   +1 more source

Benthic macrofauna and sediment reworking quantification in contrasted environments in the Thau Lagoon [PDF]

open access: yes, 2007
As part of the Microbent-PNEC Program: ‘‘Biogeochemical processes at the wateresediment interface in eutrophicated environment’’, the aim of this work was to specifically investigate and quantify the relationships between macrobenthos and sediment ...
Poggiale, Jean-Christophe   +5 more
core   +1 more source

Deep-Sea Echinoid Trails and Seafloor Nutrient Distribution: Present and Past Implications

open access: yesFrontiers in Marine Science, 2022
The movement patterns of deep-sea bioturbational fauna are believed to be the result of the organism’s interactive response to the perceived spatial distribution of nutritional resources on the seafloor.
Olmo Miguez-Salas   +4 more
doaj   +1 more source

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