Effect of Saharan dust inputs on bacterial activity and community composition in Mediterranean lakes and reservoirs
@article{Reche2009EffectOS, title={Effect of Saharan dust inputs on bacterial activity and community composition in Mediterranean lakes and reservoirs}, author={Isabel Reche and Eva Ortega‐Retuerta and Otilia Romera and Elvira Pulido Villena and Rafael Morales Baquero and Emilio O. Casamayor}, journal={Limnology and Oceanography}, year={2009}, volume={54} }
We assessed the effects of Saharan dust inputs of particulate matter (PM), total phosphorus (TP), total nitrogen, and water soluble organic carbon (WSOC) on bacterial abundance (BA) in two alpine lakes and two reservoirs in the Mediterranean region. We also experimentally assessed the effects of dust inputs on bacterial activity and community composition and explored the presence of airborne bacteria. We found synchronous BA dynamics at least in one of the study years for each corresponding…
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References
SHOWING 1-10 OF 51 REFERENCES
Spatiotemporal drivers of dissolved organic matter in high alpine lakes: Role of Saharan dust inputs and bacterial activity.
- Environmental ScienceJournal of geophysical research
- 2008
Analysis of spatiotemporal variations in dissolved organic carbon concentration and dissolved organic matter optical properties in transparent lakes located above tree line in the Sierra Nevada Mountains indicates seasonal and interannual variability in external factors and a differential response of DOC concentration and CDOM to these factors.
Bacterial response to dust pulses in the western Mediterranean: Implications for carbon cycling in the oligotrophic ocean
- Environmental Science
- 2008
The results demonstrate that heterotrophic bacteria may play a much larger role in the connections between dust and the ocean carbon cycle than previously recognized and highlight the need for a more accurate understanding of how dust pulses may affect C export in the oligotrophic ocean.
Evidence of an atmospheric forcing on bacterioplankton and phytoplankton dynamics in a high mountain lake
- Environmental ScienceAquatic Sciences
- 2007
Abstract.We quantified dry and wet atmospheric deposition of soluble reactive phosphorus (SRP) to the Southwest Mediterranean region during one year and assessed its effect on bacterial abundance and…
Atmospheric inputs of phosphorus and nitrogen to the southwest Mediterranean region: Biogeochemical responses of high mountain lakes
- Environmental Science
- 2006
We quantified dry and wet deposition of dust, nitrogen, and phosphorus over the southwest Mediterranean region (Sierra Nevada, Spain) and assessed its effects on the nutrient status and the…
Experimental examination of the effects of rainwater on microbial communities in the surface layer of the NW Mediterranean Sea
- Environmental Science
- 1997
Data indicate that in late spnng, when the NW Mediterranean is most likely nitrogen limited rain-borne 'new nutnents appear to benefit small eucaryotic phytoplankton, PNAN, rather than autotrophic or heterotrophic bactenal populations or larger phy toplankon.
The role of dust in supplying nitrogen and phosphorus to the Southeast Mediterranean
- Environmental Science
- 2002
This study assesses the role of the atmospheric dry fallout as a source of new nitrogen and phosphorus to the surface Levantine seawater. Leaching experiments of inorganic nitrogen (LINO3−, LINH4+)…
Response of East Mediterranean surface water to Saharan dust: On-board microcosm experiment and field observations
- Environmental Science
- 2005
Implications of seston settling on phosphorus dynamics in three reservoirs of contrasting trophic state
- Environmental Science
- 2008
A comparative study in three reservoirs found a strong relationship between the trophic state and the settling flux of dry material in the study reservoirs, and found that the mineralization of settling organic matter is important for maintaining high concentration of PO 4 3- in the deeper layers.
Impact of desert dust on the biogeochemistry of phosphorus in terrestrial ecosystems
- Environmental Science
- 2004
Leaching, biomass removal, and partitioning of phosphorus (P) into reservoirs not available to plants can limit the long‐term productivity of terrestrial ecosystems. We evaluate the importance of…
Synchrony and seasonality in bacterioplankton communities of two temperate rivers
- Environmental Science
- 2005
The bacterioplankton community composition of two nonintersecting temperate rivers was nearly identical and changed synchronously over 2.5 yr, suggesting that intrinsic controls on bacteria were similar in the two rivers and that seasonal changes were driven by extrinsic factors such as climate.