Data/hora: 12/06/2024 11:15:30

Provedor de dados: 	5	
País: 	France	
Título: 	Planktonic ecosystems in the channel - trophic relations	
Autores: 	Lehoerff, Genevieve; Erard-le Denn, Evelyne; Arzul, Genevieve.	
Data: 	1993	
Ano: 	1993	
Palavras-chave: 	CHANNEL; COASTAL WATER ECOSYSTEM; PLANKTONIC BIOMASS; TROPHIC EFFICIENCY; IMPACT.	
Resumo: 	Four planktonic coastal ecosystems from the western Channel to the southern part of the North Sea have been compared. The characteristics of the south of the North Sea are a very high planktonic biomass with an annual maximum value of 45 mg C m-3 h-1 for primary production, a maximum of 11 mg m-3 for Chlorophyll a and 60 mg C m-3 for zooplanktonic biomass (expressed in term of carbon weight), linked with an oscillating ecosystem. In the western Channel primary production shows an annual maximum value of 8 mg C m-3 h-1, die chlorophyll a, a maximum of 2.5 mg m-3 and zooplanktonic carbon weight of 14 mg C m-3 linked to a greater inertia in the system. Turnover is faster in the north. Trophic efficiency ratios have been calculated and linked to hydrodynamic conditions and currents. The impacts of a thermal perturbation from a nuclear power plant effluent (DT 11-degrees - 15-degrees-C) applied to ecosystems are compared.	
Tipo: 	Text	
Idioma: 	Inglês	
Identificador: 	http://archimer.ifremer.fr/doc/00100/21130/18750.pdf	
Editor: 	Gauthier-Villars	
Relação: 	http://archimer.ifremer.fr/doc/00100/21130/	
Formato: 	application/pdf	
Fonte: 	Oceanologica Acta (0399-1784) (Gauthier-Villars), 1993 , Vol. 16 , N. 5-6 , P. 661-670