1665 result(s)

This study investigates the Late Quaternary sedimentary and volcanic history of Zélée and Geyser Seamounts, carbonate platforms in the Mozambique Channel of the southwest Indian Ocean. Situated in a region influenced by active tectonics, glacial-interglacial sea level cycles, and persistent volcanic activity from both local (Mayotte and Comoros Archipelago) and regional (Madagascar) sources, these seamounts exhibit complex sedimentary and geomorp [...]

Phytoplankton play a crucial role in marine food webs as they supply essential fatty acids to higher trophic levels, from small pelagic fish to top predators, through the intermediary action of zooplankton. Thus, the composition and nutritional value of plankton communities expectably influence abundance and condition of predators potentially leading to spatial variation in trophic transfer. Through the analysis of the fatty acid (FA) profile of [...]

Time series of daily averaged potential temperature (ºC) and current speed (m/s) at 750 m depth in the Cap de Creus submarine canyon in the northwestern Mediterranean. Data has been used to validate the MedSea regional reanalysis provided by the EU Copernicus Marine Environment Monitoring Service (CMEMS) in the manuscript by Fos et al., submitted to GRL, Solving dense shelf water cascading with ocean reanalysis: the Northwestern Mediterranean cas [...]

Long-term time series of daily averaged potential temperature (ºC) and current speed (m/s) at 1000 m depth in the Cap de Creus submarine canyon in the northwestern Mediterranean. Data has been used to validate the MedSea regional reanalysis provided by the EU Copernicus Marine Service in the manuscript by Fos et al., submitted to GRL, Solving dense shelf water cascading with ocean reanalysis: the Northwestern Mediterranean case study.

Migeon Amandine, Afroz Munira, Patry Laureline, Bonnand Pierre, Sans-Jofre Pierreexpand

Prior to 2.5 billion years ago, the Earth system was dramatically different from today, and the Archean oceans were largely anoxic except for local oxygen oases in shallow seas. This study reports a complete molybdenum (Mo) stable isotope chemostratigraphy based on two correlative cored drill holes through Earth’s earliest thick carbonate platform, preserved in the 2.87-billion-year-old (Ga) Ball Assemblage of the Red Lake Greenstone Belt (Ontari [...]

Manceau Rose, Mojtahid Meryem, Rohling Eelco, Fentimen Robin, Marino Gianluca

Planktonic foraminifera are widely used as indicators of past ocean conditions through the study of fossil assemblages and shell geochemistry. The accuracy of such paleoceanographic reconstructions depends on an in-depth understanding of the species- specific ecological preferences. However, the influences of environmental factors on the spatial and vertical distribution of planktonic foraminiferal species remains poorly understood. Furthermore, [...]

Léo Broudic, Mathieu Pinault

As part of the UTOPIAN project, a data acquisition spanning from August 2021 to January 2025 has allowed for the evaluation of all coral reefs in Réunion. The CORRAM method (COral Reef Rapid Assessment Method) was used, which involves estimating 8 indicators of benthic community composition through circular plots (coral cover, percentage of the genus Acropora within coral communities, algal cover, opportunistic species cover, structural complexit [...]

Mountain glaciers are highly sensitive, purely physical monitors of climatic conditions. Geochemical and mineralogical data from core TAN1106-28 (48.372°S, 165.659°E) in the Solander Trough (2798 m water depth) allow the continuous, well-dated, high-resolution reconstruction of glacier fluctuations from New Zealand’s South Island over the last 70,000 years. The Solander Trough also lies beneath the modern Subtropical Front (STF). Major latitudina [...]

This dataset is associated with the article "Exceptionally high dimethyl sulfide concentrations during a marine heatwave in the NE subarctic Pacific". The data was collected in August 2022 as part of the long-term Line P time-series program in the NE subarctic Pacific. The primary data consists of underway-collected concentrations of DMS and DMSP along both the Line P transect and a northwards oceanic-coastal return transect. Time-course concentr [...]

Siokou-Frangou Ioanna, Christou Epaminondas

Mesozooplankton samples were collected within the project Physical Oceanography of Easten Mediterranean-Biology-Chemistry (POEM-BC). Samples were collected on board of R/V AEGAIO from 92/3/20 till 92/4/15 in the NW Levantine Sea (34.5 N   23 till 36.5N  28.5E) and in the  S.Aegean Sea (36N 24E till 36N 27E). Samples were collected at discrete layers (from the surface till 300m) by vertical tows of a WP-2 net (200 μm) and their taxonomic analysis [...]