This dataset consists of a quantitative imaging dataset of ZooScan-imaged mesoplankton and microplastics, collected with the Manta net (333 µm mesh size) aboard the schooner Tara during the Tara Pacific Expedition (2016-2018). Samples were collected at the surface across the Pacific Oceans from open-ocean stations (32 samples, open-ocean label: [i00_oa###]), with 28 samples located on the Great Pacific Garbage Patch, and from stations in coastal [...]
The piezometer is designed to measure in-situ pore pressure relative to the hydrostatic pressure and temperature. For this dataset, in-situ excess pore pressure and temperature measurements were made using cable-deployed piezometers equipped with a sediment piercing lance of 60 mm diameter carrying differential pore pressure (pore pressure in excess of hydrostatic pressure or fluid excess pore pressure) and temperature sensors, ballasted with lea [...]
The gravitational pump plays a significant role in the carbon cycle by exporting sinking organic carbon from the surface to the deep ocean. The deep sediment time-series traps provide unique observations of this sequestered carbon fluxes. However, the sinking particles trapped are sensitive to physical short-term spatial and temporal fluctuations, which present a challenge in establishing a connection with their surface origin. In this study, we [...]
MARLEY (Monitoring deep-seA coRaL EcosYstems) is a deep seafloor observing system dedicated to the monitoring of cold-water coral habitats. The system is deployed in the Lampaul canyon off Brittany, France since August 2021 and maintained each year during the ChEReef-Obs cruises. The study site is a coral garden dominated by Madrepora oculata, located on a sedimented platform at 780 m depth. MARLEY is equipped with a CTD SBE 37-SIP, an oxygen op [...]
To reconstruct the evolution of early anthropogenic impact in the Aegean Sea region, we determined changes in lead (Pb) contents and evaluated vegetation dynamics in environmental records from heterogeneous settings. Whereas Pb pollution first occurs in the northern borderlands of the Aegean Sea at c. 5,200 cal. years BP, it rises above natural background levels in marine sediments across the Aegean Sea synchronously at c. 2,150 cal. years BP. Th [...]
This dataset consists of a quantitative imaging dataset of ZooScan-imaged mesoplankton (> 200 µm), collected with high-speed net aboard the schooner Tara during the Tara Pacific Expedition (2016-2018). Samples were collected at the surface, generally on a daily frequency, across the Atlantic and Pacific Oceans from open-ocean stations (151 samples; open-ocean label: [i00_oa###]) and from stations in coastal waters of 32 Pacific islands (54 sample [...]
On January 9, 2024, (http://doi.org/10.17882/42182#107470), in the Argo data stream, very few Chlorophyll-A (Chla) profiles are available in Delayed Mode (DM). For SOCA2024 (Sauzede et al., 2016) development, we have applied a specific post-processing that acts similarly to a DM adjustment to improve Chla accuracy, but unlike DM data, data produced are not fully scrutinized. This post-processing procedure aims to apply three main corrections: 1) [...]
The Pacific oyster Crassostrea gigas is a sessile marine bivalve inhabiting the highly dynamic and stressful intertidal zone, one of the most variable and unpredictable environments on Earth, increasingly affected by global changes. Until now, no data existed on endogenous pH, oxygen, or temperature in intertidal bivalves in their natural environment. However, limited biological data on body temperature have been collected in some intertidal spec [...]
This dataset provided a list of hydrothermal vent taxa indentified in the Southwest Pacific. Vent community samples were collected at four back-arc basins (Manus, Woodlark, North Fiji and Lau) and one volcanic arc (Futuna) during the CHUBACARC oceanographic cruise (March-June 2019) on board of the French Research Vessel L’Atalante. Three vent habitats located from low to high diffuse flow areas and identified according to their dominant engineer [...]
Numerous reef-forming species have declined dramatically over the last century. Many of these declines have been insufficiently documented due to anecdotal or hard-to-access information. The Ross worm Sabellaria spinulosa (L.) is a tube-building polychaete that can form large mostly subtidal reefs, providing important ecosystem services such as coastal protection and habitat provision. It ranges from Scotland to Morocco and into the Mediterranean [...]
