TY - JOUR T1 - Modelling of oxygen and nitrogen cycling as a function of macrophyte community in the Thau lagoon A1 - Plus,Martin A1 - Chapelle,Annie A1 - Lazure,Pascal A1 - Auby,Isabelle A1 - Levavasseur,G A1 - Verlaque,M A1 - Belsher,Thomas A1 - Deslous-Paoli,Jean-Marc A1 - Zaldivar,J A1 - Murray,C AD - Commiss European Communities, Inland & Marine Waters Unit, Inst Environm & Sustainabil, I-21020 Ispra, VA, Italy. AD - IFREMER, DEL, EC, F-29280 Plouzane, France. AD - IFREMER, DEL, AO, F-29280 Plouzane, France. AD - IFREMER, DEL, AR, F-33120 Arcachon, France. AD - CNRS, Biol Stn, UMR 7127, F-29682 Roscoff, France. AD - CNRS, UMR 6540, F-13288 Marseille, France. AD - IFREMER, DRV, RA, F-34250 Palavas Les Flots, France. UR - https://archimer.ifremer.fr/doc/00000/459/ DO - 10.1016/j.csr.2003.03.001 KW - Thau lagoon KW - Biogeochemical cycles KW - Ecological modelling KW - Macrophytes N2 - A three-dimensional model coupling physical and biological processes for the whole Than lagoon (Mediterranean coast of France) was developed in order to assess the relationships between macrophytes and the oxygen and nitrogen cycles. Ten species have been inserted as forcing variables in the model. Plankton dynamics, shellfish cultivation impact and mineralization of organic matter are also considered, as well as nutrient and oxygen exchanges between the sediment and the water column. Simulations with and without the macrophytes have shown that the system can be characterized as having a highly structured pattern involving lagoon nitrogen and oxygen cycles. This pattern is created by the combined influence of macrophytes, watershed and oyster farming. The model has been also used to assess the total annual macrophyte production at the whole lagoon scale. Comparisons with phytoplankton production and with results from other temperate lagoons have underlined the high productivity of the Than lagoon supported by active nutrient regeneration. (C) 2003 Elsevier Ltd. All rights reserved. Y1 - 2003/11 PB - Elsevier JF - Continental Shelf Research SN - 0278-4343 VL - 23 IS - 17-19 SP - 1877 EP - 1898 ID - 459 ER -