The determination of nucleic acids in freshwater plankton and its ecological implications *

Autor:	Pietro Scoppa, Marie-France Baudouin
Rok vydání:	1975
Předmět:	Biomass (ecology) Ecology fungi Aquatic Science Biology Plankton biology.organism_classification Zooplankton Daphnia chemistry.chemical_compound Dry weight chemistry Phytoplankton Nucleic acid DNA
Zdroj:	Freshwater Biology. 5:115-120
ISSN:	1365-2427 0046-5070
DOI:	10.1111/j.1365-2427.1975.tb00125.x
Popis:	Summary Nucleic acid concentrations show large variations between different planktonic species. RNA concentration is much higher in phytoplankton than in zooplankton. DNA varies to a considerable extent, being five to six times higher in copepods than in cladocerans. In Daphnia hyalina, nucleic acid contents are proportional to dry weight during the whole life cycle except in newborn Daphnia where DNA concentration is abnormally high. Seasonal variations affect, to a large extent, nucleic acid concentrations. These results rule out the possibility of using nucleic acids as indicators of biomass in mixed planktonic populations.
Databáze:	OpenAIRE
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