Data/hora: 07/06/2024 05:33:45

Provedor de dados: 	5	
País: 	France	
Título: 	Development of a biologically based environmental quality standard from a long-term benthic monitoring programme in the North Sea	
Autores: 	Brown, Ar; Shillabeer, N.	
Data: 	1997	
Ano: 	1997	
Palavras-chave: 	Long-term; Monitoring; Benthos; Effluent; EQS.	
Resumo: 	The paper describes the derivation and effectiveness of a benthic macrofauna environmental quality standard (EQS). The EQS is derived from a continuing, long-term (24 years) monitoring programme, designed to determine the effect of mining effluent discharged into coastal waters off the NE coast of England. The area under study is at the Cleveland Potash mine at Boulby. Benthic monitoring began there in 1970 and live years of baseline data were gathered before discharge commenced in 1974. During the course of the monitoring programme (1970-1993) annual surveys have been completed at the discharge point and at more distant reference sites. The complete data set includes results from over 1000 benthic grab samples. The effect of the discharge is clearly demonstrated by the local benthic community and is primarily a response to the physical smothering of the sea bed by a dense, saline effluent. The long-term monitoring programme has aided the regulation of the Boulby discharge. In 1990 the data was used to derive an EQS based on the benthic community structure in the survey area, as defined by the multi-variate statistical technique MDS. Since the introduction of the EQS? breaches have coincided with increases in insoluble material discharged from the mine. The technique is now established as part of the mechanism by which the UK National Rivers Authority (NRA) regulate this discharge.	
Tipo: 	Text	
Idioma: 	Inglês	
Identificador: 	http://archimer.ifremer.fr/doc/00093/20454/18126.pdf	
Editor: 	Gauthier-Villars	
Relação: 	http://archimer.ifremer.fr/doc/00093/20454/	
Formato: 	application/pdf	
Fonte: 	Oceanologica Acta (0399-1784) (Gauthier-Villars), 1997 , Vol. 20 , N. 1 , P. 275-282