Benthic communities on hard substrates covered by Limnoperna fortunei Dunker (Bivalvia, Mytilidae) at an estuarine beach (Río de la Plata, Argentina)

Spaccesi, Fernando Gustavo; Capítulo, Alberto Rodrigues

doi:10.4081/jlimnol.2012.e15

Cited by 27 publications

(13 citation statements)

References 32 publications

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“…Blocking of pipes, turbines and obstructions in water treatment plants are the consequences that are the most costly to repair. Impacts *e-mail: nakamuraaf@gmail.com on the natural populations can be irreversible causing rapid transformation in the communities of benthic macroinvertebrates 14,15 . The objective of this study was to characterize the microstructures and to determine the calcium carbonate phases present in the shell of L. fortunei to help to understand the processes involved in the formation of the shell (biomineralization), aiming to promote the creation of new controlling methods this invasive specie.…”

Section: Introductionmentioning

confidence: 99%

Polymorphism of CaCO3 and microstructure of the shell of a Brazilian invasive mollusc (Limnoperna fortunei)

Nakamura¹,

Almeida²,

Riera³

et al. 2014

Mat. Res.

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Applying the theories of Materials Science and Engineering to describe the composition and hierarchy of microstructures that comprise biological systems could help the search for new materials and results in a deeper insight into evolutionary processes. The layered microstructure that makes up the freshwater bivalve Limnoperna fortunei shell, an invasive specie in Brazil, was investigated utilizing SEM and AFM for the determination of the morphology and organization of the layers; and XRD was used to determine the crystalline phases of the calcium carbonate (CaCO 3 ) present in the shell. The presence of the polymorphs calcite and aragonite were confirmed and the calcite is present only on the external side of the shell. The shell of L. fortunei is composed of two layers of aragonite with distinct microstructures (the aragonite prismatic layer and the aragonite sheet nacreous layer) and the periostracum (a protein layer that covers and protects the ceramic part of the shell). A new morphology of the calcite layer was found, below the periostracum, without defined form, albeit crystalline.

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Section: Introductionmentioning

confidence: 99%

Polymorphism of CaCO3 and microstructure of the shell of a Brazilian invasive mollusc (Limnoperna fortunei)

Nakamura¹,

Almeida²,

Riera³

et al. 2014

Mat. Res.

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“…This increased siltation seems to modify macroinvertebrate assemblages, favouring the abundance of many groups like annelids and nematodes (Duchini, Boltovskoy, & Sylvester, ). However, the effect of L. fortunei over macrobenthic communities remains largely unknown, although many authors have suggested potential risks for native mollusc biodiversity (Martin & Darrigran, ; Scarabino & Verde, ; Spaccesi & Rodrigues Capitulo, ).…”

Section: Introductionmentioning

confidence: 99%

Evaluating the role of predatory fish controlling the invasion of the Asian golden mussel Limnoperna fortunei in a subtropical river

González‐Bergonzoni

Silva

Mello

et al. 2020

Journal of Applied Ecology

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The invasive Asian golden mussel Limnoperna fortunei is continuously expanding through South America, altering aquatic ecosystem structure and functioning. While several native fish species predate on this mussel, these interactions, and their consequences for the food web, have not been studied in depth. We combine a survey of the fish assemblage trophic structure using gut contents and stable isotope analysis with an in situ exclusion experiment in order to: (a) determine the main fish species predating on L. fortunei; (b) estimate the contribution of L. fortunei to the biomass of fish assemblage; and (c) evaluate the role of fish on the density and maximum shell length of L. fortunei in the lower Uruguay River (the Río de La Plata Basin). We found that about one third of fish species in the assemblage (28 out of 81 species) consumed L. fortunei, which was an important food item (>10% of the dietary volume and >30% of frequency of occurrence) for 11 fish species. Stable isotope mixing models consistently suggested that >14% of the total biomass of the fish assemblage was derived directly from carbon derived from L. fortunei tissues. In addition, the exclusion experiment demonstrated that fish predation reduces the mussel density by c. 70% and the mussel maximum shell length by c. 40%. Synthesis and applications. Our research suggests a top‐down effect of fish on the invasive Asian golden mussel's abundance. This work highlights the need to preserve the native fish communities, particularly in South America, where many vulnerable migratory fish are of key relevance as Limnoperna fortunei consumers. In the light of these findings, actions such as implementing efficient fish passage technologies in the actual (and projected) dams of the Uruguay River basin and elsewhere become essential to avoid local extinctions of these natural invasion controls upstream of the dams.

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“…Since the introduction of C. fluminea, both the density and distribution range increased, reaching densities of between 300 and 1000 individuals m À2 in the Lower Delta of the Paran a River (Boltovskoy and Cataldo, 1999). Similarly, the golden mussel L. fortunei has rapidly expanded its distribution range (Darrigran, 2002), with densities of nearly 380 000 individuals m À ² recorded in the middle zone of the R ıo de la Plata estuary (Spaccesi and Rodrigues Cap ıtulo, 2012); its presence thus adds new species to the food web for fishes.…”

Section: Introductionmentioning

confidence: 99%

Invasive bivalve assessment in the diet of pejerrey, Odontesthes bonariensis (Valenciennes, 1835), at the Upper Río de la Plata, Argentina

et al. 2015

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Benthic communities on hard substrates covered by Limnoperna fortunei Dunker (Bivalvia, Mytilidae) at an estuarine beach (Río de la Plata, Argentina)

Abstract: The

Cited by 27 publications

References 32 publications

Polymorphism of CaCO3 and microstructure of the shell of a Brazilian invasive mollusc (Limnoperna fortunei)

Polymorphism of CaCO3 and microstructure of the shell of a Brazilian invasive mollusc (Limnoperna fortunei)

Evaluating the role of predatory fish controlling the invasion of the Asian golden mussel Limnoperna fortunei in a subtropical river

Invasive bivalve assessment in the diet of pejerrey, Odontesthes bonariensis (Valenciennes, 1835), at the Upper Río de la Plata, Argentina

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