Abiotic controls on population structure of the invasive Corbicula fluminea (Müller, 1774) in the River Miño estuary

Ferreira‐Rodríguez, Noé; Pardo, Isabel

doi:10.1127/1863-9135/2014/0567

Cited by 11 publications

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“…Of particular interest is the case of the Asian clam Corbicula fluminea (Müller, 1774), which is among the most important freshwater invaders worldwide (Crespo, Dolbeth, Leston, Sousa, & Pardal, ). This species has colonized almost all of the main European river basins in four decades, from the Iberian Peninsula in the south west to Ireland and the UK in the north, and to Bulgaria and Romania in the east (Crespo et al, ; Pérez‐Quintero, ), reaching densities of more than 3000 individuals per square metre (Ferreira‐Rodríguez & Pardo, ; Sousa, Guilhermino, & Antunes, ). Its successful establishment relies partly on its natural biological characteristics (e.g.…”

Section: Introductionmentioning

confidence: 99%

First evidence of asymmetric competition between the non‐native clam Corbicula fluminea and the native freshwater mussel Unio delphinus during a summer heat wave

Ferreira‐Rodríguez

Fandino

Pedreira

et al. 2018

Aquatic Conservation

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1. Non-native species introductions are a major concern for the conservation of natural ecosystems. The spread of non-native species depends not only on their adaptation to the new environment, but also on the biotic features of the nonnative and resident native species and their environment that determine competition in natural habitats.2. There is little empirical evidence from field studies that demonstrates the existence of competition between the non-native clam Corbicula fluminea and native freshwater mussels, and even less evidence on how global warming might affect competition and re-shape ecological communities.3. In this study, field surveys within the biogeographic Atlantic region in the north west of the Iberian Peninsula found little spatial overlap between C. fluminea and the native freshwater mussel Unio delphinus.4. In the laboratory, intraspecific and interspecific competition between these freshwater bivalves was assessed through physiological parameters and nutritional condition in a global warming context. A significant effect for the physiological parameters and nutritional condition ofintraspecific competition was found in C. fluminea, whereas asymmetric competition was evidenced between both species at greater densities of C. fluminea.6. Under simulated heat wave conditions, the non-native C. fluminea was competitively superior to the native freshwater mussels when both occur together. 7. Present findings suggest that further population declines of freshwater mussels in the Iberian Peninsula are expected under conditions of global warming, owing to competition with C. fluminea. SUPPORTING INFORMATIONAdditional supporting information may be found online in the Supporting Information section at the end of the article.How to cite this article: Ferreira-Rodríguez N, Fandiño L, Pedreira A, Pardo I. First evidence of asymmetric competition between the non-native clam Corbicula fluminea and the native freshwater mussel Unio delphinus during a summer heat wave.

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Section: Introductionmentioning

confidence: 99%

First evidence of asymmetric competition between the non‐native clam Corbicula fluminea and the native freshwater mussel Unio delphinus during a summer heat wave

Ferreira‐Rodríguez

Fandino

Pedreira

et al. 2018

Aquatic Conservation

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“…By contrast, unionid mussels are usually slow-growing species, with a long lifespan and complex life history dependent of host fishes (Lopes-Lima et al, 2014). In addition to these biological traits, the invasive success of C. fluminea relies also on its higher tolerance to abiotic factors such as pH, salinity, and emersion than native species (Johnson & McMahon, 1998;McMahon, 2000McMahon, , 2002Sousa et al, 2008b;Ferreira-Rodríguez & Pardo, 2014.…”

Section: Introductionmentioning

confidence: 99%

Negative effects of Corbicula fluminea over native freshwater mussels

2016

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The global decline of freshwater mussels is related with a great variety of factors, including the introduction of invasive species. However, the possible effects of other invasive bivalves, such as the Asian clam Corbicula fluminea (Müller, 1774), remain mainly unknown and highly speculative with very few manipulative experiments addressing this issue. In this study, field and laboratory experiments were conducted to assess the possible negative effects of C. fluminea on the native freshwater mussel Unio delphinus Spengler, 1783. Growth, physiological condition, and the locomotor activity were assessed in U. delphinus at increasing C. fluminea density. U. delphinus exhibited lower growth, lower physiological condition, and higher locomotor activity at higher C. fluminea density, which may suggest that this unionid is negatively affected by C. fluminea and may be displaced to less favorable habitats. Although we were not able to establish the main mechanism(s) responsible for these results, possibilities include competition for food resources, competition for space which may result in mussel displacements and/or changes in microhabitat features as a result of bioturbation activities, and production of feces and pseudofeces by C. fluminea.

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“…Ferreira‐Rodríguez). The non‐native C. fluminea has invaded a stretch of ~200 km from the river mouth since 1989, reaching densities of up to 3000 individuals m –2 in the estuary (Ferreira‐Rodríguez & Pardo, ).…”

Section: Methodsmentioning

confidence: 99%

“…Ferreira-Rodríguez). The non-native C. fluminea has invaded a stretch of~200 km from the river mouth since 1989, reaching densities of up to 3000 individuals m -2 in the estuary (Ferreira-Rodríguez & Pardo, 2014). Unio delphinus mussels and C. fluminea clams were collected, with permission from the appropriate authority (Servizo de Conservación da Natureza, Xunta de Galicia), in the River Miño (U. delphinus, 616248 X, 4762165 Y; C. fluminea, 518473 X, 4641530 Y; datum ED50/UTM zone 29 T) at a local temperature of 16°C, and then transported to the laboratory in aerated water.…”

Section: Animal Collection Housing and Experimental Conditionsmentioning

confidence: 99%

Multibiomarker response shows how native and non‐native freshwater bivalves differentially cope with heat‐wave events

Ferreira‐Rodríguez

Fernández

Cancela

et al. 2018

Aquatic Conservation

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Temperature has a key impact on the physiology, food acquisition, metabolic rate, growth, and reproduction of organisms. Thus, exploring the effects of climate change on species physiology is important for the conservation and management of native and non‐native bivalve species. In this work, an integrative laboratory approach was used to compare the physiological, cellular, and molecular responses of the native Unio delphinus and the invasive non‐native Corbicula fluminea under a natural heat‐wave event. Whereas the filtration rate in C. fluminea was clearly affected throughout the whole heat‐wave event (from the heat peak onwards), it was only significantly affected during the heat‐wave climax in U. delphinus, and recovered afterwards. At the cellular level, lysosomal membrane stability was affected during the heat‐wave climax, but recovered afterwards, in both native and non‐native bivalve species. At the molecular level, hsp70 and hsp90 gene expression were increased and decreased (respectively) in C. fluminea after the heat wave. In contrast, only hsp90 gene expression decreased in U. delphinus during the climax and after the heat wave. The present work demonstrates that accurate monitoring of native and non‐native species using an integrated biomarker approach provides new insights into how both species might cope with the expected increase in frequency and intensity of heat events in a global warming context. Direct and indirect impacts of heat waves have been associated with massive mortalities of both native and non‐native species. Despite present results showing that C. fluminea are more sensitive to heat waves than U. delphinus, massive mortality events might act in favour of C. fluminea as it has a higher reproductive capacity. Although native freshwater mussel species conservation is already threatened by overexploitation, flow regulation and diversions, habitat destruction, and pollution, it is probably also adversely affected by global warming and the presence of invasive non‐native species, such as C. fluminea.

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Abiotic controls on population structure of the invasive Corbicula fluminea (Müller, 1774) in the River Miño estuary

Cited by 11 publications

References 0 publications

First evidence of asymmetric competition between the non‐native clam Corbicula fluminea and the native freshwater mussel Unio delphinus during a summer heat wave

First evidence of asymmetric competition between the non‐native clam Corbicula fluminea and the native freshwater mussel Unio delphinus during a summer heat wave

Negative effects of Corbicula fluminea over native freshwater mussels

Multibiomarker response shows how native and non‐native freshwater bivalves differentially cope with heat‐wave events

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