Toxic Microcystis (cyanobacteria) inhibit recruitment of the bloom-enhancing invasive bivalve Limnoperna fortunei

Toxic cyanobacterial blooms and biological invasions are major threats to freshwater systems worldwide. While usually dealt with independently, the two threats can interact to produce synergistic or antagonistic outcomes. The aim of this survey is to analyse interactions between the cyanobacterium M...

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Detalles Bibliográficos
Autores principales: Boltovskoy, Demetrio, Correa, Nancy, Cataldo, Daniel Hugo
Publicado: 2013
Materias:
Limnoperna fortunei
Microcystin
Microcystis spp.
Reservoirs
Toxic algal blooms
algae
Animalia
Bivalvia
Cyanobacteria
Microcystis
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00465070_v58_n9_p1968_Boltovskoy
http://hdl.handle.net/20.500.12110/paper_00465070_v58_n9_p1968_Boltovskoy
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_00465070_v58_n9_p1968_Boltovskoy
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spelling paper:paper_00465070_v58_n9_p1968_Boltovskoy2023-06-08T15:05:31Z Toxic Microcystis (cyanobacteria) inhibit recruitment of the bloom-enhancing invasive bivalve Limnoperna fortunei Boltovskoy, Demetrio Correa, Nancy Cataldo, Daniel Hugo Limnoperna fortunei Microcystin Microcystis spp. Reservoirs Toxic algal blooms algae Animalia Bivalvia Cyanobacteria Limnoperna fortunei Microcystis Toxic cyanobacterial blooms and biological invasions are major threats to freshwater systems worldwide. While usually dealt with independently, the two threats can interact to produce synergistic or antagonistic outcomes. The aim of this survey is to analyse interactions between the cyanobacterium Microcystis spp. and the Asian invasive mussel Limnoperna fortunei. On the basis of 9 years of observational data in a large subtropical reservoir (Salto Grande, Argentina-Uruguay), we analyse causal relationships between recurring summer-early autumn blooms of Microcystis spp. and recruitment by L. fortunei. Reproduction of the mussel was interrupted during dry summers (January-April), coinciding with periods of peak Microcystis spp. growth and low water discharge (which favours build-up of algal biomass). On the other hand, wet summers with high discharge rates were characterised by low Microcystis spp. densities and high numbers of L. fortunei larvae in the water column. Of the seven South American waterbodies investigated, Salto Grande was the only one with very marked cyanobacterial blooms and where larval numbers decrease to near zero during January-April; in all others, reproduction peaks in January-April. The assumption that microcystin-producing algae are responsible for these troughs during periods when elsewhere larvae are very abundant was reinforced by experimental results indicating that microcystin-LR is highly toxic to the mussel's larvae, eliminating 58-100% of animals in 48 h at 10-20 μg L-1. Paradoxically, high concentrations of microcystin in water are probably partly due to L. fortunei's own activity, which enhances growth of Microcystis spp. through modification of nutrient concentrations, selective grazing of solitary Microcystis spp. cells over colonial ones and production of chemical cues that trigger the formation of colonies. These interactions have important implications for the management of biofouling of industrial raw cooling water facilities by the byssate mussels, as well as policies oriented at curtailing the spread of the invasive bivalve. © 2013 John Wiley & Sons Ltd. 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:Cataldo, D. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2013 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00465070_v58_n9_p1968_Boltovskoy http://hdl.handle.net/20.500.12110/paper_00465070_v58_n9_p1968_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 Limnoperna fortunei
Microcystin
Microcystis spp.
Reservoirs
Toxic algal blooms
algae
Animalia
Bivalvia
Cyanobacteria
Limnoperna fortunei
Microcystis
spellingShingle Limnoperna fortunei
Microcystin
Microcystis spp.
Reservoirs
Toxic algal blooms
algae
Animalia
Bivalvia
Cyanobacteria
Limnoperna fortunei
Microcystis
Boltovskoy, Demetrio
Correa, Nancy
Cataldo, Daniel Hugo
Toxic Microcystis (cyanobacteria) inhibit recruitment of the bloom-enhancing invasive bivalve Limnoperna fortunei
topic_facet Limnoperna fortunei
Microcystin
Microcystis spp.
Reservoirs
Toxic algal blooms
algae
Animalia
Bivalvia
Cyanobacteria
Limnoperna fortunei
Microcystis
description Toxic cyanobacterial blooms and biological invasions are major threats to freshwater systems worldwide. While usually dealt with independently, the two threats can interact to produce synergistic or antagonistic outcomes. The aim of this survey is to analyse interactions between the cyanobacterium Microcystis spp. and the Asian invasive mussel Limnoperna fortunei. On the basis of 9 years of observational data in a large subtropical reservoir (Salto Grande, Argentina-Uruguay), we analyse causal relationships between recurring summer-early autumn blooms of Microcystis spp. and recruitment by L. fortunei. Reproduction of the mussel was interrupted during dry summers (January-April), coinciding with periods of peak Microcystis spp. growth and low water discharge (which favours build-up of algal biomass). On the other hand, wet summers with high discharge rates were characterised by low Microcystis spp. densities and high numbers of L. fortunei larvae in the water column. Of the seven South American waterbodies investigated, Salto Grande was the only one with very marked cyanobacterial blooms and where larval numbers decrease to near zero during January-April; in all others, reproduction peaks in January-April. The assumption that microcystin-producing algae are responsible for these troughs during periods when elsewhere larvae are very abundant was reinforced by experimental results indicating that microcystin-LR is highly toxic to the mussel's larvae, eliminating 58-100% of animals in 48 h at 10-20 μg L-1. Paradoxically, high concentrations of microcystin in water are probably partly due to L. fortunei's own activity, which enhances growth of Microcystis spp. through modification of nutrient concentrations, selective grazing of solitary Microcystis spp. cells over colonial ones and production of chemical cues that trigger the formation of colonies. These interactions have important implications for the management of biofouling of industrial raw cooling water facilities by the byssate mussels, as well as policies oriented at curtailing the spread of the invasive bivalve. © 2013 John Wiley & Sons Ltd.
author Boltovskoy, Demetrio
Correa, Nancy
Cataldo, Daniel Hugo
author_facet Boltovskoy, Demetrio
Correa, Nancy
Cataldo, Daniel Hugo
author_sort Boltovskoy, Demetrio
title Toxic Microcystis (cyanobacteria) inhibit recruitment of the bloom-enhancing invasive bivalve Limnoperna fortunei
title_short Toxic Microcystis (cyanobacteria) inhibit recruitment of the bloom-enhancing invasive bivalve Limnoperna fortunei
title_full Toxic Microcystis (cyanobacteria) inhibit recruitment of the bloom-enhancing invasive bivalve Limnoperna fortunei
title_fullStr Toxic Microcystis (cyanobacteria) inhibit recruitment of the bloom-enhancing invasive bivalve Limnoperna fortunei
title_full_unstemmed Toxic Microcystis (cyanobacteria) inhibit recruitment of the bloom-enhancing invasive bivalve Limnoperna fortunei
title_sort toxic microcystis (cyanobacteria) inhibit recruitment of the bloom-enhancing invasive bivalve limnoperna fortunei
publishDate 2013
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00465070_v58_n9_p1968_Boltovskoy
http://hdl.handle.net/20.500.12110/paper_00465070_v58_n9_p1968_Boltovskoy
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AT cataldodanielhugo toxicmicrocystiscyanobacteriainhibitrecruitmentofthebloomenhancinginvasivebivalvelimnopernafortunei
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