Frédéric Diaz

TL;DR: In this article, a review of current functioning and responses of Mediterranean marine biogeochemical cycles and ecosystems with respect to key natural and anthropogenic drivers and to consider the ecosystems' responses to likely changes in physical, chemical and socio-economical forcings induced by global change and by growing anthropogenic pressure at the regional scale.

TL;DR: A massive spring bloom of the smallest known diatom (Minidiscus) in the northwestern Mediterranean Sea is described, implying the need to revise the classical binary vision of pico- and nanoplanktonic cells fueling the microbial loop, while only microphytoplankton sustain secondary trophic levels and carbon export.

TL;DR: Results indicated high efficiency to oxidize natural suspended particulate matter from sea- and freshwater as well as phytoplankton cultures and sinking particles collected by sediment traps and especially appropriate for shipboard work.

TL;DR: In this article, a field survey of inorganic and organic N, P and C and from bioassays carried out during the late winter-early spring 1998 was performed in the Gulf of Lions, showing that small amounts of DIP to surface samples led to a decrease in C-uptake (o30%) dur- ing the first 24 h incubation, and a rapid increase in chlorophyll biomass and to stimulate nitrate uptake (o60%), suggesting DIP limitation of new production and of algal biomass during the spring 1998 in the gulf of lions.

TL;DR: In this article, a simple and reliable method which allows simultaneous determination of organic forms of carbon (DOC), nitrogen (DON) and phosphorus (DOP) dissolved in seawater was developed.