Biogeochemical processes in sediments under the influence of the Rhone River plume were studied using both in situ microelectrodes and ex situ sediment core incubations. Organic carbon (OC) and total nitrogen (TN) content as well as stable carbon isotopic composition of OC (delta C-13(OC)) were analysed in 19 surface sediments to determine the distribution and sources of organic matter in the Rhone delta system. Large spatial variations were observed in both the total O-2 uptake (5.2 to 29.3 mmol m(-2) d(-1)) and NH4+ release (-0.1 to -3.5 mmol m(-2) d(-1)) rates at the sediment-water interface. The highest fluxes were measured near the Rhone River mouth where sedimentary OC and TN contents reached 1.81% and 0.23% respectively. Values of de...
The Mediterranean Sea (MS) is a large oligotrophic sea whose productivity is sensitive to riverine n...
In situ oxygen microprofiles, sediment organic carbon content, and pore-water concentrations of nitr...
International audienceABSTRACT Estuaries and deltas are crucial zones to better understand the inter...
International audienceRivers are important links between continents and oceans by transporting terre...
Rivers are important links between continents and oceans by transporting terrestrial particulate org...
The influence of riverine inputs on biogeochemical cycling and organic matter recycling in sediments...
The Gulf of Lions is a river-dominated ocean margin that receives high loads of nutrients and partic...
International audienceRiver-dominated ocean margins (RiOMars) are areas of high productivity, rapid ...
The Mediterranean Sea (MS) is a large oligotrophic sea whose productivity is sensitive to riverine n...
In situ oxygen microprofiles, sediment organic carbon content, and pore-water concentrations of nitr...
International audienceABSTRACT Estuaries and deltas are crucial zones to better understand the inter...
International audienceRivers are important links between continents and oceans by transporting terre...
Rivers are important links between continents and oceans by transporting terrestrial particulate org...
The influence of riverine inputs on biogeochemical cycling and organic matter recycling in sediments...
The Gulf of Lions is a river-dominated ocean margin that receives high loads of nutrients and partic...
International audienceRiver-dominated ocean margins (RiOMars) are areas of high productivity, rapid ...
The Mediterranean Sea (MS) is a large oligotrophic sea whose productivity is sensitive to riverine n...
In situ oxygen microprofiles, sediment organic carbon content, and pore-water concentrations of nitr...
International audienceABSTRACT Estuaries and deltas are crucial zones to better understand the inter...