Biogeochemistry from the Oligotrophic to the Ultra oligotrophic Mediterranean Sea (BOUM)Entry ID: BOUM
Abstract: BOUM aims to produce a detailed study of biological production and its fate in several distinct locations, representing different systems, of the Mediterranean Sea. These distinct systems represent, at a regional scale, the main oceanographic features of contrasting environments found in the oligotrophic ocean. We will determine whether organic matter production, remineralization and export ... processes are longitudinally different and if so, study how these differences are related to the structure of the planktonic community. We will focus on several questions of current interest concerning the coupling/uncoupling between carbon and nutrient (N,P,Si,Fe) delivery and removal processes which are controlling planktonic community structures and function and, ultimately, the ability of the ocean to sequester carbon. We shall describe the functioning of each distinct ecosystem under physical conditions as stationary as possible, and finally, from experimental and modelling approaches, examine the responses of the systems to perturbations, i.e. pulsed nutrient addition. The BOUM project federates French teams and is largely open to foreign collaborations. It is based on one cruise on the R/V l'Atalante or the Pourquoi Pas.
Purpose: The main objective of the BOUM cruise is to give a description of the biogeochemical parameters and biological diversity along two gradients (1) North - South from the mouth of the Rhone to the centre of the Western basin and (2) West-east from Gibraltar to the coast of Syria, during a marked period of stratification OBJECTIVE 2.
The other objective is to study how production, mineralisation and export of organic matter is depending on the community structure in contrasted oligotrophic areas. We will quantify the flow of material (biogenic elements) through each ecosystem and particularly focus on the coupling/uncoupling between carbon and nutrient supply and removal processes.
Start Date: 2007-01-01Stop Date: 2009-12-31
ISO Topic Category
Phone: +33 (0)4 91 82 95 60
Email: moutin at com.univ-mrs.fr
Campus de Luminy, case 901, cedex 09
Postal Code: 13288
Creation and Review Dates
DIF Creation Date: 2011-02-03
Last DIF Revision Date: 2011-03-18