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Plankton community respiration and its relationship to chlorophyll a concentration in marine coastal waters ArchiMer
Iriarte, A; Daneri, G; Garcia, Vmt; Purdie, Da; Crawford, Dw.
Rates of plankton community respiration and chlorophyll a levels were measured in water samples collected at several times of the year in the North Sea, and during July in the English Channel. Planktonic community respiration rates ranged from 0.025 to 0.830-mu-mol O2 l-1 h-1. At low and moderate chlorophyll a concentrations (0-5-mu-g l-1) the correlation between algal biomass and community respiration was not significant. However, respiration and chlorophyll a did correlate significantly and positively at chlorophyll a levels in excess of 5-mu-g l-1. This is discussed in terms of the relative contribution to the total community respiration of autotrophs and microheterotrophs. It is argued that at low and moderate chlorophyll a concentrations, the...
Tipo: Text Palavras-chave: PLANKTON; RESPIRATION; CHLOROPHYLL A; COASTAL WATERS; MICROHETEROTROPHS.
Ano: 1991 URL: http://archimer.ifremer.fr/doc/00101/21266/18877.pdf
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