Potential ecological distribution of alien mollusk Corbicula largillierti and its relationship with human disturbance in a semi-arid reservoir

Azevêdo, Evaldo de Lira; Barbosa, José Etham de Lucena; Vidigal, Teofânia H. D. A.; Marques, João Carlos; Callisto, Marcos; Molozzi, Joseline

doi:10.1590/1676-0611-bn-2015-0109

Cited by 7 publications

(4 citation statements)

References 35 publications

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“…One of the most problematic bivalve invasions is of the genus Corbicula (Mühlfeld, 1811). These clams may change the ecological condition of freshwater ecosystems, as they are able to alter biochemical cycles and food webs and to compete with native species (Sousa et al 2008a, 2008b; Azevêdo et al 2016). Additionally, their invasions have been associated with economic losses, since Corbicula can foul and obstruct filters and turbines, thus damaging cooling systems and affecting water reservoirs, power stations and water treatment plants, among others (Darrigran 2002; Rosa et al 2011).…”

Section: Introductionmentioning

confidence: 99%

Targeting clams: insights into the invasive potential and current and future distribution of Asian clams

et al. 2018

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SUMMARYBivalves are among the main groups of invasive freshwater species, with the Asian clam genus Corbicula in particular being widely distributed. While global studies have focused on Corbicula fluminea (Müller, 1774), the invasive potential of Corbicula largillierti (Philippi, 1844) and Corbicula fluminalis (Müller, 1774) is still unknown. The spread of invasive species may be intensified by climate change. We estimated and compared environmentally suitable areas for these species under hypothetical climate scenarios, generating global maps of invasion risk. We found large climatically suitable areas for C. largillierti and C. fluminalis (under species distribution models) and that their invasive potential is currently underestimated. The analysis revealed many areas in which changing climate may favour the invasion of Corbicula spp.

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Section: Introductionmentioning

confidence: 99%

Targeting clams: insights into the invasive potential and current and future distribution of Asian clams

et al. 2018

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“…Because of their worldwide distribution and negative ecological and economic impact, extensive knowledge has been gathered about the distribution, morphology, growth, reproduction, and physiology of the most problematic of these (Boltovskoy, ; Karatayev et al., 2007; Orlova et al, 2005; Sousa et al., 2008). However, although C. largillierti has been shown to be a potential invader of a variety of ecosystems (Reyna et al., 2018), there are almost no studies about basic aspects of its biology, reproduction, or physiological traits (Azevêdo et al., 2016; Ituarte, 1984; Martins et al., 2006; Reyna et al., 2013). Filling the gaps of fundamental physiological information on this species is crucial to better understand its invasion capacity, predict the magnitude of its impact, and elaborate suitable management policies (Blackburn et al., 2014).…”

Section: Introductionmentioning

confidence: 99%

“…However, although C. largillierti has been shown to be a potential invader of a variety of ecosystems (Reyna et al, 2018), there are almost no studies about basic aspects of its biology, reproduction, or physiological traits (Azevêdo et al, 2016;Ituarte, 1984;Martins et al, 2006;Reyna et al, 2013). Filling the gaps of fundamental physiological information on this species is crucial to better understand its invasion capacity, predict the magnitude of its impact, and elaborate suitable management policies (Blackburn et al, 2014).…”

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confidence: 99%

The role of temperature and oxygen availability on the distribution of Corbicula largillierti

Rodriguez

Reyna

Maggioni

et al. 2020

Invertebrate Biology

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The invasiveness of Corbicula largillierti has been underestimated, but this bivalve is currently receiving more attention. The first study of the distribution of this species along one of the major basins of central Argentina showed that it was completely absent in the major central reservoir, but was present along its tributary and effluent rivers. Ten years later, this discontinuous distribution has not changed, despite the bivalve's high dispersion capacity. The main environmental differences between the reservoir and the rivers are that the former has finer sediment grain size, higher temperatures, and lower oxygen concentration during summer months. This study aimed to evaluate whether one of these factors could be limiting the distribution of C. largillierti. We assessed the metabolic response and burial behavior (under different grain sizes) of C. largillierti over 8 weeks at 30°C against a control condition at 20°C. We also analyzed the oxygen consumption (vO2) as a function of environmental oxygen concentration (pO2) at 25°C, estimating its metabolic regulation capacity (R). This showed the existence of an environmental oxygen concentration threshold (Pt) that could be an indicative of physiological limiting concentrations that compromise species survival and settlement. After 8 weeks at 30°C, the metabolic rate of individuals of C. largillierti increased and their burial behavior was slightly compromised but mostly for coarser sediments. Concerning environmental oxygen availability, C. largillierti is an oxyconformer with a low R (39.9%), a clear pattern of negative regulation, and a low Pt (48.4% air saturation). The lack of any regulation capacity of C. largillierti under environmental oxygen limitations and the extremely low pO2 at the bottom of the reservoir during summer months may explain its failure to colonize and survive there.

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“…However, sampling at distinct environmental conditions is necessary to detect trends of changes in freshwater assemblages (Resh et al 2013), including those generated by large-scale climate changes (Lake 2000, Lake 2003. Analyses of the ecological conditions of these ecosystems have been conducted using water quality bioindicators (Martins et al 2015), including benthic macroinvertebrate community (Morais et al 2017) and exotic species (Azevêdo et al 2016, Linares et al 2017. The integrated analysis of biological metrics and information on land use, physical habitat conditions, and water quality enables ecological assessment at multiple spatial scales (Macedo et al 2016, Ferreira et al 2017, Castro et al 2017.…”

Section: Introductionmentioning

confidence: 99%

Effects of an atypical drought on the benthic macroinvertebrate community in a tropical reservoir

et al. 2018

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Atypical drought events have increasingly occurred in Brazil over the last years due to global climate changes. However, their consequences on aquatic biota in reservoirs are poorly known. We tested the hypothesis that macroinvertebrate communities are negatively affected by atypical drought events, given the sensitivity of many taxa to environmental changes. We predicted that: (a) there would be changes in limnological and sediment parameters between a regular year and an atypical year, (b) abundance and richness of the genera of Chironomidae and of exotic species would be higher due to the enhanced ability of these organisms to adapt to changes in the physical environment, and (c) community structure metrics (i. richness; ii. % richness; iii. abundance; iv. % abundance) would be affected by disturbance indices (i. Buffer Disturbance Index-BDI; ii. Local Disturbance Index-LDI; iii. Integrated Disturbance Index-IDI) in both years. The study was carried out in the reservoir of the Nova Ponte Hydroelectric Power Plant, state of Minas Gerais, comparing two sampling periods: a regular climatological year (2010) and an atypical drought year (2014). A total of 40 sampling sites were defined along the shore of the reservoir, and types of land use in the surrounding area of each site were measured, as well as physical habitat conditions, sediments, and benthic macroinvertebrate communities. Sampling was performed at these sites in the end of the rainy season in both years. The intensity of anthropogenic modifications was assessed at local scale and in the areas (buffers) surrounding the sampling sites using quantitative disturbance indices. There were striking differences in limnological parameters and sediment characteristics between sampling periods. Taxonomic richness was significantly lower in the drought year. As opposed to our predictions, richness and abundance of Chironomidae and exotic species did not increase with the atypical drought event. Besides, most community structure metrics showed a significant relationship with disturbance indices only during the regular climatological year, thus indicating that the large-scale effects of water stress may override the conditions of local habitats and the surrounding landscape. Therefore, in addition to a correct political-environmental management of water resources at local-scale, which includes maintaining the water quality and the riparian and landscape integrity, addressing large-scale climate issues is required for the maintenance of the ecological integrity of tropical reservoirs.

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Potential ecological distribution of alien mollusk Corbicula largillierti and its relationship with human disturbance in a semi-arid reservoir

Cited by 7 publications

References 35 publications

Targeting clams: insights into the invasive potential and current and future distribution of Asian clams

Targeting clams: insights into the invasive potential and current and future distribution of Asian clams

The role of temperature and oxygen availability on the distribution of Corbicula largillierti

Effects of an atypical drought on the benthic macroinvertebrate community in a tropical reservoir

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