FN Archimer Export Format PT J TI Influence du bouchon vaseux sur les variations des concentrations en oxygène dissous : Cas de l'estuaire de la Loire TI Effect of maximum tunbidity zone on the variations of dissolved oxygen concentrations: example of the estuary of the Loire BT AF Romana, Louis-Alexandre Thouvenin, Benedicte Galenne, B. Casanova, C. AS 1:1;2:1;3:2;4:2; FF 1:;2:;3:;4:; C1 IFREMER, Service Environnement Méditerranéen, B.P. 330, 83507 La Seyne-sur-Mer , France Port Autonome de Nantes/St-Nazaire, Service Etudes des Eaux, B.P. 1052, 44037 Nantes Cedex , France C2 IFREMER, FRANCE PORT AUTONOME NANTES/SAINT NAZAIRE, FRANCE IF 0.043 TC 0 UR https://archimer.ifremer.fr/doc/00480/59123/61751.pdf LA French English DT Article AB The dissolved oxygen is a sensitive parameter for the environment quality. It is subjected to important variations in macrotidal estuaries with significant results on the fauna. It's why we can notice the important mullet death note in the Estuary of the Loire during sommer time. The supply of biodegradable organic substances in the maximum turbidity zone led to an important dissolved oxygen demand. It's the example of the Estuary of the Loire where we can watch this main fonction. A detailed study has begun on the dissolved oxygen cycle to compare the biochemical particulate and dissolved oxygen demand. This study collects in situ parameters, either of the environment evolution or of the dissolved oxygen cycle with specifie researches on the rate of degradation of the particulate and dissolved organic substances. PY 1990 PD JUL SO La Houille Blanche SN 0018-6368 PU EDP Sciences IS 3-4 BP 257 EP 263 DI 10.1051/lhb/1990020 ID 59123 ER EF