Data/hora: 05/06/2024 17:12:52

Provedor de dados: 	5	
País: 	France	
Título: 	Evolution du phytoplancton dans des bassins de culture	
Autores: 	Nival, Paul; Malara, G.; Lelong, P.; Cellario, C.; Charra, R.; Riva, A.	
Data: 	1979	
Ano: 	1979	
Palavras-chave: 	Phytoplancton; Culture; Croissance; Composition chimique; Espèces; Phytoplankton; Culture; Growth; Chemical composition; Species.	
Resumo: 	The concentration of chlorophyll a in large out-door continuous cul­ture was analysed in spring 1977 and 1978, and autumn - winter 1977-1978. The growth of marine phytoplankton in springsl977 is analysed with more details and shows three phases : - first, the diatoms (especially Skeletonema costatum) grow rapidely (27/4 to 3/5). The growth rate estimated by the chlorophyll measurements is 1.36 day“1. - then (3/5 to.13/5) the concentration of chlorophyll remains more or less constant (23.611.2 mg/m3) as well as the concentration of particulate organic matter. - at the end of the experiment (13/5 to 20/5) the concentration of chlo­rophyll falls as soon as Skeletonema costatum decrease in number.The declin of the phytoplankton biomass is followed by an increase of the bacteria which reach a maximum on 15/5. We assume that the rapid decrease of chlorophyll a on the 13/5 is related to the effect of the dissolved silicate deficiency on skeletonema costatum and to the grazing by rotifers and copepods.	
Tipo: 	Text	
Idioma: 	Francês	
Identificador: 	http://archimer.ifremer.fr/doc/00305/41668/40877.pdf

http://archimer.ifremer.fr/doc/00305/41668/	
Editor: 	Publications du Centre National pour l'Exploitation des Océans (CNEXO). Série : Actes de colloques, n° 7, 1979, pp. 305-322	
Formato: 	application/pdf	
Fonte: 	Centre National pour l’Exploitation des Océan, 1979

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