Seasonal patterns of free-living and attached bacterial activity in the coastal NW Mediterranean
| Autor: | Borrull, Encarnación, Aparicio, Francisco Luis, Antequera, C., Marrasé, Cèlia, Gasol, Josep M., Sala, M. Montserrat |
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| Rok vydání: | 2015 |
| Zdroj: | Digital.CSIC. Repositorio Institucional del CSIC instname |
| Popis: | Aquatic Sciences Meeting, Aquatic Sciences: Global And Regional Perspectives - North Meets South, 22-27 February 2015, Granada, Spain Matter in the ocean has traditionally been divided into dissolved or particulate fractions and associated to these, the life-style of bacteria can be classified as free-living (FL) or particle-attached (PA). We followed the size structure of bacterioplankton from September 2010 to June 2013 in a NW Mediterranean Sea coastal site (Blanes Bay Microbial Observatory, BBMO). A monthly sampling was performed in surface waters following bulk seawater, but also size fractionating through 5 different filters: 0.2 – 0.8 – 3.0 – 5.0 – 10.0 µm pore size. Bacterial abundance and production, extracellular enzyme activities, and utilization of sole carbon sources (95 substrates) were determined in these fractions. We observed different patterns of activity in different size fractions. Our results also suggest an important role of meteorological events, such as precipitation, and environmental factors such as temperature, nutrients and chlorophyll a in determining the seasonal patterns of fractionated bacterial activity |
| Databáze: | OpenAIRE |
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