Sentences with phrase «diatom community»

These results are in accordance with observations from short - term natural diatom community experiments [10,12], where temperature exerted a stronger influence than pCO2, but statistically pCO2 was still a contributor to observed effects.

Short - and long - term conditioning of a temperate marine diatom community to acidification and warming

Our results support the use of short - term manipulative experiments spanning weeks as proxies to understand the potential effects of global change forcing on diatom community structure over longer timescales such as years.

We incubated a natural diatom community from coastal New Zealand waters in a short - term incubation experiment using a factorial matrix of temperature and CO2, and measured effects on community structure.

Among their findings: in streams with the amphetamine addition, the growth of biofilms was significantly suppressed, the composition of bacterial and diatom communities changed, and aquatic insects emerged earlier.

In the final paper of this issue, Tatters et al. [66] study the competitiveness of natural diatom communities incubated under future environmental conditions for two weeks, after which the dominant species were isolated and then incubated again for over a year before recombining the now conditioned species to reconstruct the original community.

Inter-specific competition was found to be similar in both the unconditioned natural and the conditioned artificial community, suggesting that for diatom communities, short - term manipulative experiments may be used to predict the effects of long - term environmental forcing on community structure.

Not exact matches

According to Ingall, removal of iron by diatom - dominated phytoplankton communities may dampen the intended outcome of enhanced carbon uptake through iron fertilization by reducing the productivity of other phytoplankton, which take up carbon dioxide more efficiently.

Major consequences of such changes over regional scales will probably include (1) reductions in primary production combined with (2) shifts from diatom - dominated (low SA: V ratio) phytoplankton assemblages with high POC - export efficiencies to picoplankton communities (high SA: V ratio) characterized by low export efficiencies (Smith et al., 2008; Morán et al., 2010; Morán et al., 2015).

Phaeocystis antarctica, a non-siliceous prymnesiophyte, dominates some Southern Ocean phytoplankton communities, but loses out to diatoms when bioavailable iron is low.

Benthic biofilms are composed of a community of photoautotrophic organisms, predominantly diatoms and cyanobacteria, together with heterotrophic microbes, bound together by an extracellular polymeric substance (EPS).