Data/hora: 09/06/2024 08:38:50

Provedor de dados: 	5	
País: 	France	
Título: 	New observations on the eutrophication of the Gulf of Lion due to the nutrient input by the Rhone River	
Autores: 	Coste, A; Cadenes, A; Minas, H.	
Data: 	1984-11	
Ano: 	1984	
Palavras-chave: 	France; Rhone R. Nutrient cycles Primary production River discharge Nutrients (mineral) Eutrophication.	
Resumo: 	During the cruise EURHOGLI (Eutrophication by the Rhone of the Gulf of Lion) of the R.V. Le Noroit , a grid of stations covering the dilution area of the Rhone River has been carried out two times with a time interval of about two weeks. An exceptional growth during the two months preceding the cruise, has produced an important dilution effect over a wide spread areas. The absence of nutrients demonstrates their general consumption by biological activity. The tracer properties of the nutrient can be observed only in a small area near the mouth of the river. Nutrients are becoming the tracer of this dilution, and a great development of chlorophyll associated to this same area, show that nearly all the biological activity of nutrient assimilation is concentrated in the narrow surface layer. Such a situation proves the absence of downward mixing effect due to the wind. Determinations of nutrients in the waters show a strong increase of the concentration during the last 20 years; this increase has an anthropogenic origin.	
Tipo: 	Text	
Idioma: 	Inglês	
Identificador: 	http://archimer.ifremer.fr/doc/1984/acte-1515.pdf	
Editor: 	Actes de colloques. Ifremer. Brest [ACTES COLLOQ. IFREMER.]. 1984	
Relação: 	http://archimer.ifremer.fr/doc/00000/1515/	
Formato: 	application/pdf