Nutrient recycling, phytoplankton grazing, and associated impacts of Limnoperna fortunei

Laboratory and field experiments indicate that the presence of Limnoperna fortunei decreases concentrations of particulate organic matter and increases ammonia, nitrate, and especially phosphate. Long-term series of field data partially confirm these results. After having been colonized by the musse...

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Detalles Bibliográficos
Autores principales:	Boltovskoy, Demetrio, Correa, Nancy, Sylvester, Francisco, Cataldo, Daniel Hugo
Publicado:	2015
Materias:	Cyanobacterial blooms Ecological impact Golden mussel Grazing selectivity Limnoperna fortunei Microcystis Nutrient recycling Phytoplankton grazing
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_97833191_v_n_p153_Boltovskoy http://hdl.handle.net/20.500.12110/paper_97833191_v_n_p153_Boltovskoy
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_97833191_v_n_p153_Boltovskoy
record_format	dspace
spelling	paper:paper_97833191_v_n_p153_Boltovskoy2023-06-08T16:38:43Z Nutrient recycling, phytoplankton grazing, and associated impacts of Limnoperna fortunei Boltovskoy, Demetrio Correa, Nancy Sylvester, Francisco Cataldo, Daniel Hugo Cyanobacterial blooms Ecological impact Golden mussel Grazing selectivity Limnoperna fortunei Microcystis Nutrient recycling Phytoplankton grazing Laboratory and field experiments indicate that the presence of Limnoperna fortunei decreases concentrations of particulate organic matter and increases ammonia, nitrate, and especially phosphate. Long-term series of field data partially confirm these results. After having been colonized by the mussel, a 47 km2 reservoir developed higher concentrations of ammonia and phosphates, a higher P:N ratio, more transparency, less seston, and less phytoplankton and primary production. Phytoplankton clearance rates by the mussel vary widely, suggesting that "normal" values for adult organisms are around 100 mL/ind./h, or ca. 2-4 mL/mg DW/h. Data on grazing selectivity are inconclusive, but seem to indicate highest impacts on small (< 1 mm) particles. Large plankton are negatively selected, but they may account for greater proportions of total biomass in the diet. Studies on consumption of toxic cyanobacteria yield conflicting results, but large golden mussel populations significantly enhance blooms of colonial Microcystis spp. through changes in nutrient availability, size-selective grazing, promotion of colony formation, and reduced grazing of toxic cells. These toxic blooms, in turn, suppress reproduction of the mussel, most probably killing the larvae. Growth of periphyton and aquatic macrophytes are enhanced significantly by the golden mussel. © Springer International Publishing Switzerland 2015. Fil:Boltovskoy, D. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Correa, N. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Sylvester, F. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Cataldo, D. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2015 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_97833191_v_n_p153_Boltovskoy http://hdl.handle.net/20.500.12110/paper_97833191_v_n_p153_Boltovskoy
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Cyanobacterial blooms Ecological impact Golden mussel Grazing selectivity Limnoperna fortunei Microcystis Nutrient recycling Phytoplankton grazing
spellingShingle	Cyanobacterial blooms Ecological impact Golden mussel Grazing selectivity Limnoperna fortunei Microcystis Nutrient recycling Phytoplankton grazing Boltovskoy, Demetrio Correa, Nancy Sylvester, Francisco Cataldo, Daniel Hugo Nutrient recycling, phytoplankton grazing, and associated impacts of Limnoperna fortunei
topic_facet	Cyanobacterial blooms Ecological impact Golden mussel Grazing selectivity Limnoperna fortunei Microcystis Nutrient recycling Phytoplankton grazing
description	Laboratory and field experiments indicate that the presence of Limnoperna fortunei decreases concentrations of particulate organic matter and increases ammonia, nitrate, and especially phosphate. Long-term series of field data partially confirm these results. After having been colonized by the mussel, a 47 km2 reservoir developed higher concentrations of ammonia and phosphates, a higher P:N ratio, more transparency, less seston, and less phytoplankton and primary production. Phytoplankton clearance rates by the mussel vary widely, suggesting that "normal" values for adult organisms are around 100 mL/ind./h, or ca. 2-4 mL/mg DW/h. Data on grazing selectivity are inconclusive, but seem to indicate highest impacts on small (< 1 mm) particles. Large plankton are negatively selected, but they may account for greater proportions of total biomass in the diet. Studies on consumption of toxic cyanobacteria yield conflicting results, but large golden mussel populations significantly enhance blooms of colonial Microcystis spp. through changes in nutrient availability, size-selective grazing, promotion of colony formation, and reduced grazing of toxic cells. These toxic blooms, in turn, suppress reproduction of the mussel, most probably killing the larvae. Growth of periphyton and aquatic macrophytes are enhanced significantly by the golden mussel. © Springer International Publishing Switzerland 2015.
author	Boltovskoy, Demetrio Correa, Nancy Sylvester, Francisco Cataldo, Daniel Hugo
author_facet	Boltovskoy, Demetrio Correa, Nancy Sylvester, Francisco Cataldo, Daniel Hugo
author_sort	Boltovskoy, Demetrio
title	Nutrient recycling, phytoplankton grazing, and associated impacts of Limnoperna fortunei
title_short	Nutrient recycling, phytoplankton grazing, and associated impacts of Limnoperna fortunei
title_full	Nutrient recycling, phytoplankton grazing, and associated impacts of Limnoperna fortunei
title_fullStr	Nutrient recycling, phytoplankton grazing, and associated impacts of Limnoperna fortunei
title_full_unstemmed	Nutrient recycling, phytoplankton grazing, and associated impacts of Limnoperna fortunei
title_sort	nutrient recycling, phytoplankton grazing, and associated impacts of limnoperna fortunei
publishDate	2015
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_97833191_v_n_p153_Boltovskoy http://hdl.handle.net/20.500.12110/paper_97833191_v_n_p153_Boltovskoy
work_keys_str_mv	AT boltovskoydemetrio nutrientrecyclingphytoplanktongrazingandassociatedimpactsoflimnopernafortunei AT correanancy nutrientrecyclingphytoplanktongrazingandassociatedimpactsoflimnopernafortunei AT sylvesterfrancisco nutrientrecyclingphytoplanktongrazingandassociatedimpactsoflimnopernafortunei AT cataldodanielhugo nutrientrecyclingphytoplanktongrazingandassociatedimpactsoflimnopernafortunei
_version_	1769175797339258880

Nutrient recycling, phytoplankton grazing, and associated impacts of Limnoperna fortunei

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