Dinophyta Characterise Nitrogen Scarcity More Strongly than Cyanobacteria in Moderately Deep Lakes
cytuj
pobierz pliki
RIS BIB ENDNOTEChoose format
RIS BIB ENDNOTEDinophyta Characterise Nitrogen Scarcity More Strongly than Cyanobacteria in Moderately Deep Lakes
Publication date: 31.07.2013
Acta Protozoologica, 2013, Volume 52, Issue 3, pp. 203 - 216
https://doi.org/10.4467/16890027AP.13.0018.1115Authors
Dinophyta Characterise Nitrogen Scarcity More Strongly than Cyanobacteria in Moderately Deep Lakes
A survey of the summer phytoplankton communities of thirty-six moderately-deep north temperate lowland lakes showed that the proportions of Dinophyta and non-heterocyst-bearing cyanobacteria taxa, measured as biovolume, were inversely related to the total nitrogen: total phosphorus (TN:TP) ratio and that these groups were predominant in lakes where available nitrogen fell to undetectable concentrations. The proportion of heterocyst-bearing cyanobacteria was positively correlated to the TN:TP ratio and nitrate. Dinophyta and/or non-heterocystous cyanobacteria were prevalent in lakes with the highest epilimnion nutrient concentrations, whilst heterocystous cyanobacteria predominated in lakes with moderate nutrient concentrations. It is argued that the ability of Dinophyta to migrate vertically and to supplement their nutrient requirements though heterotrophy may enable them to be at least as successful as Cyanobacteria in high nutrient lakes and in overcoming nitrogen-scarcity. Our findings provide evidence that Dinophyta can be used as indicators of water quality.
Information: Acta Protozoologica, 2013, Volume 52, Issue 3, pp. 203 - 216
Article type: Original article
University of Liverpool
Uniwersytet Johnsa Hopkinsa
School of Natural Science and Psychology, Liverpool John Moores University, Liverpool, UK
Published at: 31.07.2013
Article status: Open
Licence: None
Percentage share of authors:
Article corrections:
-Publication languages:
EnglishView count: 2206
Number of downloads: 1803