Dynamics of soluble extracellular polymeric substances and transparent exopolymer particle pools in coastal ecosystems. Klein, C., Claquin, P., Pannard, A., Napoléon, C., Roy, B. L., & Véron, B. 427:13–27. ![Dynamics of soluble extracellular polymeric substances and transparent exopolymer particle pools in coastal ecosystems [link]](https://bibbase.org/img/filetypes/link.svg "link")
Paper doi abstract bibtex Time series of soluble extracellular polymeric substance (S-EPS) and transparent exopolymer particle (TEP) fractions, as well as biological, physical and chemical parameters, were studied in natural phytoplankton assemblages at 2 macrotidal sites located in the English Channel for 3 yr. The first site, the Bay des Veys (BDV), is sheltered from prevailing winds and influenced by a high river discharge, whereas the second, Lingreville-sur Mer (LGV), is exposed to the open ocean and to dominant winds. At both sites, the highest TEP concentrations were measured in spring and summer (1735 and 3604 µg equiv X l–1 at BDV and LGV, respectively) and were correlated with phytoplankton biomass and nitrogen concentrations. During the autumn and winter, TEP dynamics were not related to phytoplankton dynamics but appeared controlled by hydrodynamics. In contrast to TEP concentrations, S-EPS did not present any seasonal dynamics and was not correlated with TEP variations. The highest amount of S-EPS was recorded in spring at LGV (25.8 mg equiv. glucose l–1) and in summer at BDV (26.4 mg equiv. glucose l–1). The S-EPS pool was separated in 2 fractions according to the molecular weight: low (LW) and high (HW). The LW fraction was produced in higher quantity than the HW fraction, and with larger temporal fluctuations. Therefore, both S-EPS fractions seem controlled by different environmental parameters depending on the season and on the studied ecosystem. The different dynamics observed for TEP and S-EPS confirm the complexity of carbon excretion processes in phytoplankton, and the results reveal different metabolic pathways and different origins for these carbon excretions.
@article{klein_dynamics_2011,
title = {Dynamics of soluble extracellular polymeric substances and transparent exopolymer particle pools in coastal ecosystems},
volume = {427},
issn = {0171-8630, 1616-1599},
url = {https://www.int-res.com/abstracts/meps/v427/p13-27/},
doi = {10.3354/meps09049},
abstract = {Time series of soluble extracellular polymeric substance (S-{EPS}) and transparent exopolymer particle ({TEP}) fractions, as well as biological, physical and chemical parameters, were studied in natural phytoplankton assemblages at 2 macrotidal sites located in the English Channel for 3 yr. The first site, the Bay des Veys ({BDV}), is sheltered from prevailing winds and influenced by a high river discharge, whereas the second, Lingreville-sur Mer ({LGV}), is exposed to the open ocean and to dominant winds. At both sites, the highest {TEP} concentrations were measured in spring and summer (1735 and 3604 µg equiv X l–1 at {BDV} and {LGV}, respectively) and were correlated with phytoplankton biomass and nitrogen concentrations. During the autumn and winter, {TEP} dynamics were not related to phytoplankton dynamics but appeared controlled by hydrodynamics. In contrast to {TEP} concentrations, S-{EPS} did not present any seasonal dynamics and was not correlated with {TEP} variations. The highest amount of S-{EPS} was recorded in spring at {LGV} (25.8 mg equiv. glucose l–1) and in summer at {BDV} (26.4 mg equiv. glucose l–1). The S-{EPS} pool was separated in 2 fractions according to the molecular weight: low ({LW}) and high ({HW}). The {LW} fraction was produced in higher quantity than the {HW} fraction, and with larger temporal fluctuations. Therefore, both S-{EPS} fractions seem controlled by different environmental parameters depending on the season and on the studied ecosystem. The different dynamics observed for {TEP} and S-{EPS} confirm the complexity of carbon excretion processes in phytoplankton, and the results reveal different metabolic pathways and different origins for these carbon excretions.},
pages = {13--27},
journaltitle = {Marine Ecology Progress Series},
author = {Klein, Cécile and Claquin, Pascal and Pannard, Alexandrine and Napoléon, Camille and Roy, Bertrand Le and Véron, Benoît},
urldate = {2019-04-16},
date = {2011-04-12},
langid = {english},
keywords = {Diatoms, Environmental parameters, Eastern English Channel, Soluble {EPS}, {TEP}, Transparent exopolymer particles}
}
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The first site, the Bay des Veys (BDV), is sheltered from prevailing winds and influenced by a high river discharge, whereas the second, Lingreville-sur Mer (LGV), is exposed to the open ocean and to dominant winds. At both sites, the highest TEP concentrations were measured in spring and summer (1735 and 3604 µg equiv X l–1 at BDV and LGV, respectively) and were correlated with phytoplankton biomass and nitrogen concentrations. During the autumn and winter, TEP dynamics were not related to phytoplankton dynamics but appeared controlled by hydrodynamics. In contrast to TEP concentrations, S-EPS did not present any seasonal dynamics and was not correlated with TEP variations. The highest amount of S-EPS was recorded in spring at LGV (25.8 mg equiv. glucose l–1) and in summer at BDV (26.4 mg equiv. glucose l–1). The S-EPS pool was separated in 2 fractions according to the molecular weight: low (LW) and high (HW). The LW fraction was produced in higher quantity than the HW fraction, and with larger temporal fluctuations. Therefore, both S-EPS fractions seem controlled by different environmental parameters depending on the season and on the studied ecosystem. The different dynamics observed for TEP and S-EPS confirm the complexity of carbon excretion processes in phytoplankton, and the results reveal different metabolic pathways and different origins for these carbon excretions.","pages":"13–27","journaltitle":"Marine Ecology Progress Series","author":[{"propositions":[],"lastnames":["Klein"],"firstnames":["Cécile"],"suffixes":[]},{"propositions":[],"lastnames":["Claquin"],"firstnames":["Pascal"],"suffixes":[]},{"propositions":[],"lastnames":["Pannard"],"firstnames":["Alexandrine"],"suffixes":[]},{"propositions":[],"lastnames":["Napoléon"],"firstnames":["Camille"],"suffixes":[]},{"propositions":[],"lastnames":["Roy"],"firstnames":["Bertrand","Le"],"suffixes":[]},{"propositions":[],"lastnames":["Véron"],"firstnames":["Benoît"],"suffixes":[]}],"urldate":"2019-04-16","date":"2011-04-12","langid":"english","keywords":"Diatoms, Environmental parameters, Eastern English Channel, Soluble EPS, TEP, Transparent exopolymer particles","bibtex":"@article{klein_dynamics_2011,\n\ttitle = {Dynamics of soluble extracellular polymeric substances and transparent exopolymer particle pools in coastal ecosystems},\n\tvolume = {427},\n\tissn = {0171-8630, 1616-1599},\n\turl = {https://www.int-res.com/abstracts/meps/v427/p13-27/},\n\tdoi = {10.3354/meps09049},\n\tabstract = {Time series of soluble extracellular polymeric substance (S-{EPS}) and transparent exopolymer particle ({TEP}) fractions, as well as biological, physical and chemical parameters, were studied in natural phytoplankton assemblages at 2 macrotidal sites located in the English Channel for 3 yr. 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