Mixotrophic species influencing phytoplankton community structuring during the filling phase of a subtropical reservoir
Abstract Aiming to evaluate temporal alterations in the dynamics of the phytoplankton community in response to environmental changes occurring during the filling phase of Santa Clara reservoir, samples were taken weekly from April to June 2005 in the region close to the dam, following vertical gradi...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Jati, S. [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2017 |
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| Schlagwörter: |
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| Anmerkung: |
© Botanical Society of Sao Paulo 2017 |
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| Übergeordnetes Werk: |
Enthalten in: Brazilian journal of botany - São Paulo : Springer, 2012, 40(2017), 4 vom: 09. Sept., Seite 933-941 |
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| Übergeordnetes Werk: |
volume:40 ; year:2017 ; number:4 ; day:09 ; month:09 ; pages:933-941 |
| Links: |
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| DOI / URN: |
10.1007/s40415-017-0407-y |
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SPR036418129 |
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| 520 | |a Abstract Aiming to evaluate temporal alterations in the dynamics of the phytoplankton community in response to environmental changes occurring during the filling phase of Santa Clara reservoir, samples were taken weekly from April to June 2005 in the region close to the dam, following vertical gradients of light and temperature. Sampling depths comprised the subsurface (sup), upper limit of the euphotic zone ($ Z_{eu} $), lower limit of the epilimnion ($ Z_{mix} $) and near the bottom ($ Z_{max} $). Low light availability hindered phytoplankton growth throughout the period. Descriptor species (biovolume > 5%) were classified in 17 functional groups (FGs): X2, Y, D, C, P, Lo, E, B, Na, MP, A, J, K, S1, Ws, F and M. Phytoplankton biovolume was low during the filling phase, and characterized a meso-oligotrophic environment. Mixotrophic species belonging to functional groups X2, Y, Lo and E provided the greatest contribution to total biovolume and dominated throughout the period. Water column thermal structure and a tendency of a decrease in nutrient concentrations influenced the change in the dominance of FGs. Our results suggest that mixotrophic strategy was determinant for phytoplankton production and biomass, representing a competitive advantage over strictly autotrophic phytoplankton, suggesting that during the filling phase of Santa Clara reservoir, the microbial loop played an important role in the flow of energy and carbon to higher trophic levels of the food web. Therefore, our initial hypothesis that the disruption of longitudinal connectivity in the river and alterations in the mixing regime and light availability would change phytoplankton community structure causing a replacement in the dominance of FGs containing turbulence-tolerant species by FGs containing species with a higher demand for water column stability and light availability was not corroborated. Although a species replacement was observed, this was not due to enhanced resource availability, but rather due to the trophic abilities of the FGs. | ||
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| 700 | 1 | |a Train, S. |4 aut | |
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10.1007/s40415-017-0407-y doi (DE-627)SPR036418129 (SPR)s40415-017-0407-y-e DE-627 ger DE-627 rakwb eng Jati, S. verfasserin (orcid)0000-0002-1813-9903 aut Mixotrophic species influencing phytoplankton community structuring during the filling phase of a subtropical reservoir 2017 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Botanical Society of Sao Paulo 2017 Abstract Aiming to evaluate temporal alterations in the dynamics of the phytoplankton community in response to environmental changes occurring during the filling phase of Santa Clara reservoir, samples were taken weekly from April to June 2005 in the region close to the dam, following vertical gradients of light and temperature. Sampling depths comprised the subsurface (sup), upper limit of the euphotic zone ($ Z_{eu} $), lower limit of the epilimnion ($ Z_{mix} $) and near the bottom ($ Z_{max} $). Low light availability hindered phytoplankton growth throughout the period. Descriptor species (biovolume > 5%) were classified in 17 functional groups (FGs): X2, Y, D, C, P, Lo, E, B, Na, MP, A, J, K, S1, Ws, F and M. Phytoplankton biovolume was low during the filling phase, and characterized a meso-oligotrophic environment. Mixotrophic species belonging to functional groups X2, Y, Lo and E provided the greatest contribution to total biovolume and dominated throughout the period. Water column thermal structure and a tendency of a decrease in nutrient concentrations influenced the change in the dominance of FGs. Our results suggest that mixotrophic strategy was determinant for phytoplankton production and biomass, representing a competitive advantage over strictly autotrophic phytoplankton, suggesting that during the filling phase of Santa Clara reservoir, the microbial loop played an important role in the flow of energy and carbon to higher trophic levels of the food web. Therefore, our initial hypothesis that the disruption of longitudinal connectivity in the river and alterations in the mixing regime and light availability would change phytoplankton community structure causing a replacement in the dominance of FGs containing turbulence-tolerant species by FGs containing species with a higher demand for water column stability and light availability was not corroborated. Although a species replacement was observed, this was not due to enhanced resource availability, but rather due to the trophic abilities of the FGs. Brazil (dpeaa)DE-He213 Functional groups (dpeaa)DE-He213 Impoundment (dpeaa)DE-He213 Mixotrophy (dpeaa)DE-He213 Bortolini, J. C. aut Train, S. aut Enthalten in Brazilian journal of botany São Paulo : Springer, 2012 40(2017), 4 vom: 09. Sept., Seite 933-941 (DE-627)727814389 (DE-600)2686406-X 1806-9959 nnns volume:40 year:2017 number:4 day:09 month:09 pages:933-941 https://dx.doi.org/10.1007/s40415-017-0407-y lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 40 2017 4 09 09 933-941 |
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10.1007/s40415-017-0407-y doi (DE-627)SPR036418129 (SPR)s40415-017-0407-y-e DE-627 ger DE-627 rakwb eng Jati, S. verfasserin (orcid)0000-0002-1813-9903 aut Mixotrophic species influencing phytoplankton community structuring during the filling phase of a subtropical reservoir 2017 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Botanical Society of Sao Paulo 2017 Abstract Aiming to evaluate temporal alterations in the dynamics of the phytoplankton community in response to environmental changes occurring during the filling phase of Santa Clara reservoir, samples were taken weekly from April to June 2005 in the region close to the dam, following vertical gradients of light and temperature. Sampling depths comprised the subsurface (sup), upper limit of the euphotic zone ($ Z_{eu} $), lower limit of the epilimnion ($ Z_{mix} $) and near the bottom ($ Z_{max} $). Low light availability hindered phytoplankton growth throughout the period. Descriptor species (biovolume > 5%) were classified in 17 functional groups (FGs): X2, Y, D, C, P, Lo, E, B, Na, MP, A, J, K, S1, Ws, F and M. Phytoplankton biovolume was low during the filling phase, and characterized a meso-oligotrophic environment. Mixotrophic species belonging to functional groups X2, Y, Lo and E provided the greatest contribution to total biovolume and dominated throughout the period. Water column thermal structure and a tendency of a decrease in nutrient concentrations influenced the change in the dominance of FGs. Our results suggest that mixotrophic strategy was determinant for phytoplankton production and biomass, representing a competitive advantage over strictly autotrophic phytoplankton, suggesting that during the filling phase of Santa Clara reservoir, the microbial loop played an important role in the flow of energy and carbon to higher trophic levels of the food web. Therefore, our initial hypothesis that the disruption of longitudinal connectivity in the river and alterations in the mixing regime and light availability would change phytoplankton community structure causing a replacement in the dominance of FGs containing turbulence-tolerant species by FGs containing species with a higher demand for water column stability and light availability was not corroborated. Although a species replacement was observed, this was not due to enhanced resource availability, but rather due to the trophic abilities of the FGs. Brazil (dpeaa)DE-He213 Functional groups (dpeaa)DE-He213 Impoundment (dpeaa)DE-He213 Mixotrophy (dpeaa)DE-He213 Bortolini, J. C. aut Train, S. aut Enthalten in Brazilian journal of botany São Paulo : Springer, 2012 40(2017), 4 vom: 09. Sept., Seite 933-941 (DE-627)727814389 (DE-600)2686406-X 1806-9959 nnns volume:40 year:2017 number:4 day:09 month:09 pages:933-941 https://dx.doi.org/10.1007/s40415-017-0407-y lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 40 2017 4 09 09 933-941 |
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10.1007/s40415-017-0407-y doi (DE-627)SPR036418129 (SPR)s40415-017-0407-y-e DE-627 ger DE-627 rakwb eng Jati, S. verfasserin (orcid)0000-0002-1813-9903 aut Mixotrophic species influencing phytoplankton community structuring during the filling phase of a subtropical reservoir 2017 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Botanical Society of Sao Paulo 2017 Abstract Aiming to evaluate temporal alterations in the dynamics of the phytoplankton community in response to environmental changes occurring during the filling phase of Santa Clara reservoir, samples were taken weekly from April to June 2005 in the region close to the dam, following vertical gradients of light and temperature. Sampling depths comprised the subsurface (sup), upper limit of the euphotic zone ($ Z_{eu} $), lower limit of the epilimnion ($ Z_{mix} $) and near the bottom ($ Z_{max} $). Low light availability hindered phytoplankton growth throughout the period. Descriptor species (biovolume > 5%) were classified in 17 functional groups (FGs): X2, Y, D, C, P, Lo, E, B, Na, MP, A, J, K, S1, Ws, F and M. Phytoplankton biovolume was low during the filling phase, and characterized a meso-oligotrophic environment. Mixotrophic species belonging to functional groups X2, Y, Lo and E provided the greatest contribution to total biovolume and dominated throughout the period. Water column thermal structure and a tendency of a decrease in nutrient concentrations influenced the change in the dominance of FGs. Our results suggest that mixotrophic strategy was determinant for phytoplankton production and biomass, representing a competitive advantage over strictly autotrophic phytoplankton, suggesting that during the filling phase of Santa Clara reservoir, the microbial loop played an important role in the flow of energy and carbon to higher trophic levels of the food web. Therefore, our initial hypothesis that the disruption of longitudinal connectivity in the river and alterations in the mixing regime and light availability would change phytoplankton community structure causing a replacement in the dominance of FGs containing turbulence-tolerant species by FGs containing species with a higher demand for water column stability and light availability was not corroborated. Although a species replacement was observed, this was not due to enhanced resource availability, but rather due to the trophic abilities of the FGs. Brazil (dpeaa)DE-He213 Functional groups (dpeaa)DE-He213 Impoundment (dpeaa)DE-He213 Mixotrophy (dpeaa)DE-He213 Bortolini, J. C. aut Train, S. aut Enthalten in Brazilian journal of botany São Paulo : Springer, 2012 40(2017), 4 vom: 09. Sept., Seite 933-941 (DE-627)727814389 (DE-600)2686406-X 1806-9959 nnns volume:40 year:2017 number:4 day:09 month:09 pages:933-941 https://dx.doi.org/10.1007/s40415-017-0407-y lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 40 2017 4 09 09 933-941 |
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10.1007/s40415-017-0407-y doi (DE-627)SPR036418129 (SPR)s40415-017-0407-y-e DE-627 ger DE-627 rakwb eng Jati, S. verfasserin (orcid)0000-0002-1813-9903 aut Mixotrophic species influencing phytoplankton community structuring during the filling phase of a subtropical reservoir 2017 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Botanical Society of Sao Paulo 2017 Abstract Aiming to evaluate temporal alterations in the dynamics of the phytoplankton community in response to environmental changes occurring during the filling phase of Santa Clara reservoir, samples were taken weekly from April to June 2005 in the region close to the dam, following vertical gradients of light and temperature. Sampling depths comprised the subsurface (sup), upper limit of the euphotic zone ($ Z_{eu} $), lower limit of the epilimnion ($ Z_{mix} $) and near the bottom ($ Z_{max} $). Low light availability hindered phytoplankton growth throughout the period. Descriptor species (biovolume > 5%) were classified in 17 functional groups (FGs): X2, Y, D, C, P, Lo, E, B, Na, MP, A, J, K, S1, Ws, F and M. Phytoplankton biovolume was low during the filling phase, and characterized a meso-oligotrophic environment. Mixotrophic species belonging to functional groups X2, Y, Lo and E provided the greatest contribution to total biovolume and dominated throughout the period. Water column thermal structure and a tendency of a decrease in nutrient concentrations influenced the change in the dominance of FGs. Our results suggest that mixotrophic strategy was determinant for phytoplankton production and biomass, representing a competitive advantage over strictly autotrophic phytoplankton, suggesting that during the filling phase of Santa Clara reservoir, the microbial loop played an important role in the flow of energy and carbon to higher trophic levels of the food web. Therefore, our initial hypothesis that the disruption of longitudinal connectivity in the river and alterations in the mixing regime and light availability would change phytoplankton community structure causing a replacement in the dominance of FGs containing turbulence-tolerant species by FGs containing species with a higher demand for water column stability and light availability was not corroborated. Although a species replacement was observed, this was not due to enhanced resource availability, but rather due to the trophic abilities of the FGs. Brazil (dpeaa)DE-He213 Functional groups (dpeaa)DE-He213 Impoundment (dpeaa)DE-He213 Mixotrophy (dpeaa)DE-He213 Bortolini, J. C. aut Train, S. aut Enthalten in Brazilian journal of botany São Paulo : Springer, 2012 40(2017), 4 vom: 09. Sept., Seite 933-941 (DE-627)727814389 (DE-600)2686406-X 1806-9959 nnns volume:40 year:2017 number:4 day:09 month:09 pages:933-941 https://dx.doi.org/10.1007/s40415-017-0407-y lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 40 2017 4 09 09 933-941 |
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10.1007/s40415-017-0407-y doi (DE-627)SPR036418129 (SPR)s40415-017-0407-y-e DE-627 ger DE-627 rakwb eng Jati, S. verfasserin (orcid)0000-0002-1813-9903 aut Mixotrophic species influencing phytoplankton community structuring during the filling phase of a subtropical reservoir 2017 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Botanical Society of Sao Paulo 2017 Abstract Aiming to evaluate temporal alterations in the dynamics of the phytoplankton community in response to environmental changes occurring during the filling phase of Santa Clara reservoir, samples were taken weekly from April to June 2005 in the region close to the dam, following vertical gradients of light and temperature. Sampling depths comprised the subsurface (sup), upper limit of the euphotic zone ($ Z_{eu} $), lower limit of the epilimnion ($ Z_{mix} $) and near the bottom ($ Z_{max} $). Low light availability hindered phytoplankton growth throughout the period. Descriptor species (biovolume > 5%) were classified in 17 functional groups (FGs): X2, Y, D, C, P, Lo, E, B, Na, MP, A, J, K, S1, Ws, F and M. Phytoplankton biovolume was low during the filling phase, and characterized a meso-oligotrophic environment. Mixotrophic species belonging to functional groups X2, Y, Lo and E provided the greatest contribution to total biovolume and dominated throughout the period. Water column thermal structure and a tendency of a decrease in nutrient concentrations influenced the change in the dominance of FGs. Our results suggest that mixotrophic strategy was determinant for phytoplankton production and biomass, representing a competitive advantage over strictly autotrophic phytoplankton, suggesting that during the filling phase of Santa Clara reservoir, the microbial loop played an important role in the flow of energy and carbon to higher trophic levels of the food web. Therefore, our initial hypothesis that the disruption of longitudinal connectivity in the river and alterations in the mixing regime and light availability would change phytoplankton community structure causing a replacement in the dominance of FGs containing turbulence-tolerant species by FGs containing species with a higher demand for water column stability and light availability was not corroborated. Although a species replacement was observed, this was not due to enhanced resource availability, but rather due to the trophic abilities of the FGs. Brazil (dpeaa)DE-He213 Functional groups (dpeaa)DE-He213 Impoundment (dpeaa)DE-He213 Mixotrophy (dpeaa)DE-He213 Bortolini, J. C. aut Train, S. aut Enthalten in Brazilian journal of botany São Paulo : Springer, 2012 40(2017), 4 vom: 09. Sept., Seite 933-941 (DE-627)727814389 (DE-600)2686406-X 1806-9959 nnns volume:40 year:2017 number:4 day:09 month:09 pages:933-941 https://dx.doi.org/10.1007/s40415-017-0407-y lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 40 2017 4 09 09 933-941 |
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Sampling depths comprised the subsurface (sup), upper limit of the euphotic zone ($ Z_{eu} $), lower limit of the epilimnion ($ Z_{mix} $) and near the bottom ($ Z_{max} $). Low light availability hindered phytoplankton growth throughout the period. Descriptor species (biovolume > 5%) were classified in 17 functional groups (FGs): X2, Y, D, C, P, Lo, E, B, Na, MP, A, J, K, S1, Ws, F and M. Phytoplankton biovolume was low during the filling phase, and characterized a meso-oligotrophic environment. Mixotrophic species belonging to functional groups X2, Y, Lo and E provided the greatest contribution to total biovolume and dominated throughout the period. Water column thermal structure and a tendency of a decrease in nutrient concentrations influenced the change in the dominance of FGs. Our results suggest that mixotrophic strategy was determinant for phytoplankton production and biomass, representing a competitive advantage over strictly autotrophic phytoplankton, suggesting that during the filling phase of Santa Clara reservoir, the microbial loop played an important role in the flow of energy and carbon to higher trophic levels of the food web. Therefore, our initial hypothesis that the disruption of longitudinal connectivity in the river and alterations in the mixing regime and light availability would change phytoplankton community structure causing a replacement in the dominance of FGs containing turbulence-tolerant species by FGs containing species with a higher demand for water column stability and light availability was not corroborated. 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Mixotrophic species influencing phytoplankton community structuring during the filling phase of a subtropical reservoir Brazil (dpeaa)DE-He213 Functional groups (dpeaa)DE-He213 Impoundment (dpeaa)DE-He213 Mixotrophy (dpeaa)DE-He213 |
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mixotrophic species influencing phytoplankton community structuring during the filling phase of a subtropical reservoir |
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Mixotrophic species influencing phytoplankton community structuring during the filling phase of a subtropical reservoir |
| abstract |
Abstract Aiming to evaluate temporal alterations in the dynamics of the phytoplankton community in response to environmental changes occurring during the filling phase of Santa Clara reservoir, samples were taken weekly from April to June 2005 in the region close to the dam, following vertical gradients of light and temperature. Sampling depths comprised the subsurface (sup), upper limit of the euphotic zone ($ Z_{eu} $), lower limit of the epilimnion ($ Z_{mix} $) and near the bottom ($ Z_{max} $). Low light availability hindered phytoplankton growth throughout the period. Descriptor species (biovolume > 5%) were classified in 17 functional groups (FGs): X2, Y, D, C, P, Lo, E, B, Na, MP, A, J, K, S1, Ws, F and M. Phytoplankton biovolume was low during the filling phase, and characterized a meso-oligotrophic environment. Mixotrophic species belonging to functional groups X2, Y, Lo and E provided the greatest contribution to total biovolume and dominated throughout the period. Water column thermal structure and a tendency of a decrease in nutrient concentrations influenced the change in the dominance of FGs. Our results suggest that mixotrophic strategy was determinant for phytoplankton production and biomass, representing a competitive advantage over strictly autotrophic phytoplankton, suggesting that during the filling phase of Santa Clara reservoir, the microbial loop played an important role in the flow of energy and carbon to higher trophic levels of the food web. Therefore, our initial hypothesis that the disruption of longitudinal connectivity in the river and alterations in the mixing regime and light availability would change phytoplankton community structure causing a replacement in the dominance of FGs containing turbulence-tolerant species by FGs containing species with a higher demand for water column stability and light availability was not corroborated. Although a species replacement was observed, this was not due to enhanced resource availability, but rather due to the trophic abilities of the FGs. © Botanical Society of Sao Paulo 2017 |
| abstractGer |
Abstract Aiming to evaluate temporal alterations in the dynamics of the phytoplankton community in response to environmental changes occurring during the filling phase of Santa Clara reservoir, samples were taken weekly from April to June 2005 in the region close to the dam, following vertical gradients of light and temperature. Sampling depths comprised the subsurface (sup), upper limit of the euphotic zone ($ Z_{eu} $), lower limit of the epilimnion ($ Z_{mix} $) and near the bottom ($ Z_{max} $). Low light availability hindered phytoplankton growth throughout the period. Descriptor species (biovolume > 5%) were classified in 17 functional groups (FGs): X2, Y, D, C, P, Lo, E, B, Na, MP, A, J, K, S1, Ws, F and M. Phytoplankton biovolume was low during the filling phase, and characterized a meso-oligotrophic environment. Mixotrophic species belonging to functional groups X2, Y, Lo and E provided the greatest contribution to total biovolume and dominated throughout the period. Water column thermal structure and a tendency of a decrease in nutrient concentrations influenced the change in the dominance of FGs. Our results suggest that mixotrophic strategy was determinant for phytoplankton production and biomass, representing a competitive advantage over strictly autotrophic phytoplankton, suggesting that during the filling phase of Santa Clara reservoir, the microbial loop played an important role in the flow of energy and carbon to higher trophic levels of the food web. Therefore, our initial hypothesis that the disruption of longitudinal connectivity in the river and alterations in the mixing regime and light availability would change phytoplankton community structure causing a replacement in the dominance of FGs containing turbulence-tolerant species by FGs containing species with a higher demand for water column stability and light availability was not corroborated. Although a species replacement was observed, this was not due to enhanced resource availability, but rather due to the trophic abilities of the FGs. © Botanical Society of Sao Paulo 2017 |
| abstract_unstemmed |
Abstract Aiming to evaluate temporal alterations in the dynamics of the phytoplankton community in response to environmental changes occurring during the filling phase of Santa Clara reservoir, samples were taken weekly from April to June 2005 in the region close to the dam, following vertical gradients of light and temperature. Sampling depths comprised the subsurface (sup), upper limit of the euphotic zone ($ Z_{eu} $), lower limit of the epilimnion ($ Z_{mix} $) and near the bottom ($ Z_{max} $). Low light availability hindered phytoplankton growth throughout the period. Descriptor species (biovolume > 5%) were classified in 17 functional groups (FGs): X2, Y, D, C, P, Lo, E, B, Na, MP, A, J, K, S1, Ws, F and M. Phytoplankton biovolume was low during the filling phase, and characterized a meso-oligotrophic environment. Mixotrophic species belonging to functional groups X2, Y, Lo and E provided the greatest contribution to total biovolume and dominated throughout the period. Water column thermal structure and a tendency of a decrease in nutrient concentrations influenced the change in the dominance of FGs. Our results suggest that mixotrophic strategy was determinant for phytoplankton production and biomass, representing a competitive advantage over strictly autotrophic phytoplankton, suggesting that during the filling phase of Santa Clara reservoir, the microbial loop played an important role in the flow of energy and carbon to higher trophic levels of the food web. Therefore, our initial hypothesis that the disruption of longitudinal connectivity in the river and alterations in the mixing regime and light availability would change phytoplankton community structure causing a replacement in the dominance of FGs containing turbulence-tolerant species by FGs containing species with a higher demand for water column stability and light availability was not corroborated. Although a species replacement was observed, this was not due to enhanced resource availability, but rather due to the trophic abilities of the FGs. © Botanical Society of Sao Paulo 2017 |
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Mixotrophic species influencing phytoplankton community structuring during the filling phase of a subtropical reservoir |
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Bortolini, J. C. Train, S. |
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10.1007/s40415-017-0407-y |
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2024-07-03T17:30:21.778Z |
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| score |
7.3998127 |