The introduced bivalve Limnoperna fortunei boosts Microcystis growth in Salto Grande reservoir (Argentina): Evidence from mesocosm experiments

In order to assess the effects of the introduced bivalve Limnoperna fortunei on water-column properties of Salto Grande reservoir, experiments were conducted using six 400 L mesocosms: 2 with 100 mussels, 2 with 300 mussels, and 2 controls (without mussels). At 0, 1, 2, 3, 7, 14, 21, 28, and 35 days...

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Detalles Bibliográficos
Autores principales: Cataldo, D., Vinocur, A., OFarrell, I., Paolucci, E., Leites, V., Boltovskoy, D.
Formato: JOUR
Materias:
Introduced bivalves
Limnoperna fortunei
Microcystis blooms
South America
bivalve
chlorophyll a
freshwater ecosystem
growth rate
mesocosm
nitrate
phytoplankton
water column
Argentina
Salto Grande Reservoir
algae
Bivalvia
Cyanobacteria
Microcystis
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00188158_v680_n1_p25_Cataldo
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
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spelling todo:paper_00188158_v680_n1_p25_Cataldo2023-10-03T14:16:05Z The introduced bivalve Limnoperna fortunei boosts Microcystis growth in Salto Grande reservoir (Argentina): Evidence from mesocosm experiments Cataldo, D. Vinocur, A. OFarrell, I. Paolucci, E. Leites, V. Boltovskoy, D. Introduced bivalves Limnoperna fortunei Microcystis blooms South America bivalve chlorophyll a freshwater ecosystem growth rate mesocosm nitrate phytoplankton water column Argentina Salto Grande Reservoir algae Bivalvia Cyanobacteria Limnoperna fortunei Microcystis In order to assess the effects of the introduced bivalve Limnoperna fortunei on water-column properties of Salto Grande reservoir, experiments were conducted using six 400 L mesocosms: 2 with 100 mussels, 2 with 300 mussels, and 2 controls (without mussels). At 0, 1, 2, 3, 7, 14, 21, 28, and 35 days we measured nutrient and chlorophyll a concentrations, counted and identified the phytoplankton, and estimated the density, size, and number of cells of the colonies of Microcystis spp. Cumulative periphyton growth and total accumulated sediments were assessed in all enclosures at the end of the experiment. Throughout the experiment, in the controls ammonia and phosphates dropped to near zero, whereas in the mesocosms with L. fortunei they increased two- to tenfold. Nitrates decreased in all mesocosms. In the presence of the mussel, chlorophyll a and algal cells dropped until day 3 increasing thereafter, whereas in the controls they increased from day 0. Periphyton growth and sediment accumulation were significantly higher in the mesocosms with mussels that in the controls. Cell density, proportion of colonial cells and colony size of Microcystis spp. increased in all enclosures, but these increases were dramatically (and very significantly) higher in enclosures with 100 and, especially, with 300 mussels, than in the controls. Our results indicate that L. fortunei modifies nutrient concentrations and proportions, and promotes aggregation of solitary Microcystis spp. cells into colonies; both these effects can favor blooms of this often noxious cyanobacteria. © 2011 Springer Science+Business Media B.V. Fil:Cataldo, D. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Vinocur, A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Paolucci, E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Boltovskoy, D. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00188158_v680_n1_p25_Cataldo
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Introduced bivalves
Limnoperna fortunei
Microcystis blooms
South America
bivalve
chlorophyll a
freshwater ecosystem
growth rate
mesocosm
nitrate
phytoplankton
water column
Argentina
Salto Grande Reservoir
algae
Bivalvia
Cyanobacteria
Limnoperna fortunei
Microcystis
spellingShingle Introduced bivalves
Limnoperna fortunei
Microcystis blooms
South America
bivalve
chlorophyll a
freshwater ecosystem
growth rate
mesocosm
nitrate
phytoplankton
water column
Argentina
Salto Grande Reservoir
algae
Bivalvia
Cyanobacteria
Limnoperna fortunei
Microcystis
Cataldo, D.
Vinocur, A.
OFarrell, I.
Paolucci, E.
Leites, V.
Boltovskoy, D.
The introduced bivalve Limnoperna fortunei boosts Microcystis growth in Salto Grande reservoir (Argentina): Evidence from mesocosm experiments
topic_facet Introduced bivalves
Limnoperna fortunei
Microcystis blooms
South America
bivalve
chlorophyll a
freshwater ecosystem
growth rate
mesocosm
nitrate
phytoplankton
water column
Argentina
Salto Grande Reservoir
algae
Bivalvia
Cyanobacteria
Limnoperna fortunei
Microcystis
description In order to assess the effects of the introduced bivalve Limnoperna fortunei on water-column properties of Salto Grande reservoir, experiments were conducted using six 400 L mesocosms: 2 with 100 mussels, 2 with 300 mussels, and 2 controls (without mussels). At 0, 1, 2, 3, 7, 14, 21, 28, and 35 days we measured nutrient and chlorophyll a concentrations, counted and identified the phytoplankton, and estimated the density, size, and number of cells of the colonies of Microcystis spp. Cumulative periphyton growth and total accumulated sediments were assessed in all enclosures at the end of the experiment. Throughout the experiment, in the controls ammonia and phosphates dropped to near zero, whereas in the mesocosms with L. fortunei they increased two- to tenfold. Nitrates decreased in all mesocosms. In the presence of the mussel, chlorophyll a and algal cells dropped until day 3 increasing thereafter, whereas in the controls they increased from day 0. Periphyton growth and sediment accumulation were significantly higher in the mesocosms with mussels that in the controls. Cell density, proportion of colonial cells and colony size of Microcystis spp. increased in all enclosures, but these increases were dramatically (and very significantly) higher in enclosures with 100 and, especially, with 300 mussels, than in the controls. Our results indicate that L. fortunei modifies nutrient concentrations and proportions, and promotes aggregation of solitary Microcystis spp. cells into colonies; both these effects can favor blooms of this often noxious cyanobacteria. © 2011 Springer Science+Business Media B.V.
format JOUR
author Cataldo, D.
Vinocur, A.
OFarrell, I.
Paolucci, E.
Leites, V.
Boltovskoy, D.
author_facet Cataldo, D.
Vinocur, A.
OFarrell, I.
Paolucci, E.
Leites, V.
Boltovskoy, D.
author_sort Cataldo, D.
title The introduced bivalve Limnoperna fortunei boosts Microcystis growth in Salto Grande reservoir (Argentina): Evidence from mesocosm experiments
title_short The introduced bivalve Limnoperna fortunei boosts Microcystis growth in Salto Grande reservoir (Argentina): Evidence from mesocosm experiments
title_full The introduced bivalve Limnoperna fortunei boosts Microcystis growth in Salto Grande reservoir (Argentina): Evidence from mesocosm experiments
title_fullStr The introduced bivalve Limnoperna fortunei boosts Microcystis growth in Salto Grande reservoir (Argentina): Evidence from mesocosm experiments
title_full_unstemmed The introduced bivalve Limnoperna fortunei boosts Microcystis growth in Salto Grande reservoir (Argentina): Evidence from mesocosm experiments
title_sort introduced bivalve limnoperna fortunei boosts microcystis growth in salto grande reservoir (argentina): evidence from mesocosm experiments
url http://hdl.handle.net/20.500.12110/paper_00188158_v680_n1_p25_Cataldo
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