Hydrological stress as a limiting factor of the invasion of Limnoperna fortunei (Dunker, 1857) in the Upper Paraná River (Brazil)

Campos, Minerva; Lanzer, Rosane Maria; Castro, Paulo de Tarso Amorim

doi:10.1590/s2179-975x2012005000027

Cited by 11 publications

(11 citation statements)

References 29 publications

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“…In the most northern large rivers of the basin, Paranaíba and Grande Rivers, we did not register the species presence. But very low densities of larvae had already been previously (2006) observed in these rivers lower stretches (Campos et al, 2012).…”

Section: Discussionmentioning

confidence: 55%

“…high phosphorus concentration and low water transparency) observed in this river stretch, the prevalence of high water velocity (riverine condition) could also inhibit the development of dense populations. Hydrological stress as limiting factors of the L. fortunei invasion was proposed by (Campos et al, 2012), based on observations in the upper Paraná River sub-basin.…”

Section: Discussionmentioning

confidence: 99%

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More than two decades after the introduction of Limnoperna fortunei (Dunker 1857) in La Plata Basin

Pessotto

Nogueira

2018

Braz. J. Biol.

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The golden mussel, Limnoperna fortunei, is an Asian freshwater bivalve introduced in South America in the beginning of the 1990's, probably through ballast water releases in La Plata River estuary. It dispersed north through Paraná, Uruguay and Paraguay Rivers. The study evaluated the macroscale (18° to 34° S; 45° to 60° W) distribution of L. fortunei (larval stages) in the main rivers and reservoirs of La Plata Basin. Samplings were performed through 68 µm vertical plankton net hauls. Limnological variables were simultaneously determined. Larvae abundance correlated significantly with oxygen (positively) in summer, with temperature (positively) in winter and with total phosphorus and total nitrogen (both negatively) in winter. We expected densities to decrease towards north (latitudinal gradient) and increase in lentic conditions (reservoirs). Despite maximum density was found near the introduction point (La Plata River) similar value was also observed 2,000 km north (Paraguay River). The first hypothesis was refuted. The second hypothesis was partially accepted. Abundances were consistently higher in summer. Higher trophic conditions and fast flow seem to inhibit population growth. Food resources (chlorophyll a) locally influenced temporal variation. Limnoperna fortunei is widely distributed in La Plata basin, reaching high larval densities superior to 10,000 ind. m -3 , in all major sub-basins. The species exhibits a high intrinsic dispersal ability (free planktonic larvae), wide tolerance to environmental factors and dispersion is potentialized by natural dispersion processes (e.g. fauna displacement) and human facilitation (e.g. commercial navigation).Keywords: golden mussel, larval stage, Uruguay River, Paraguay River, Paraná River Duas décadas após a chegada de Limnoperna fortunei (Dunker 1857) na Bacia do PrataResumo O mexilhão dourado, Limnoperna fortunei, é um bivalve de água doce originário da Ásia e introduzido na América do Sul no início de 1990, provavelmente através da água de lastro liberada no estuário do rio La Plata. Dispersando-se para o norte através dos rios Paraná, Uruguai e Paraguai. Esse estudo avaliou a distribuição em macroescala (18° a 34° S; 45° a 60° W) de L. fortunei (estágios larvais) nos principais rios e reservatórios da bacia La Plata. Amostragens foram realizadas através de arrastos verticais com rede planctônica de 68 µm. Variáveis limnológicas foram simultaneamente determinadas. A abundância larval correlacionou-se significativamente com oxigênio (positivamente) no verão, com a temperatura (positivamente) no inverno e com fósforo total e nitrogênio total (ambos negativamente) no inverno. Esperávamos um decréscimo da densidade em direção ao norte (gradiente latitudinal) e aumento em condições lênticas (reservatórios). Apesar de a densidade máxima ter sido encontrada próximo do ponto de introdução (La Plata River) valores similares também foram observados 2.000 km ao norte (rio Paraguai). A primeira hipótese foi refutada. A segunda hipótese foi parcialmente aceita. Abu...

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Section: Discussionmentioning

confidence: 55%

Section: Discussionmentioning

confidence: 99%

More than two decades after the introduction of Limnoperna fortunei (Dunker 1857) in La Plata Basin

Pessotto

Nogueira

2018

Braz. J. Biol.

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“…It is a freshwater bivalve originally from Chinese and Southeastern Asian rivers (Morton 1975), which has been causing considerable economic and environmental impact. The occurrence of L. fortunei from the southern part of South America to the headwaters of the upper Paraná River (Campos et al 2012) shows how much its spatial distribution has been expanding in Brazil since 1998. For this reason, a better prediction of the environment's potential to accept or avoid the establishment of L. fortunei on the basis of niche modeling is essential for developing prevention and control strategies.…”

Section: Introductionmentioning

confidence: 99%

“…Different studies involving the prediction of the spatial distribution of aquatic species have focused on distinct environmental characteristics at the regional or continental levels (Peterson 2001, Peterson & Vieglais 2001, Drake and Bossenbroek 2004, Iguchi et al 2004, Kluza & McNyset 2005, Campos et al 2014. The first studies related to the generation of ecologic niche models for aquatic species (Strayer 1991, Iguchi et al 2004, Drake and Bossenbroek 2004, Bossenbroek et al 2007 utilized environmental variables (environmental layers) restricted to global climatic environmental variables (e.g., rainfall and air temperature).…”

Section: Introductionmentioning

confidence: 99%

“…Considering that this bivalve is an epifaunal species, that the attachment to hard substrates is by means of a byssus (Morton 1973), and that its planktonic larval stages are easily dragged by water currents, the hypothesis presented in this paper is that the competence of a river, here indicated by the shear strength, is an important factor in the composition of L. fortunei's ecological niche, influencing its establishment in a new environment and consequently determining its distribution. For the study area in the lower Paranaíba River basin, Campos et al (2012) indicated several factors that would impose a certain ''hydrodynamic stress'' on larval stages and would contribute to slowing the establishment of the mollusc, thus making it difficult for the bivalve to overcome the geographic barrier represented by the São Simão hydroelectricity plant and to establish in the river segment upstream. To prove this hypothesis, we modeled the L. fortunei niche using the algorithm Maximum Entropy Method (Maxent), incorporating the shear strength of the aquatic environments as one of the environmental layers of the ecological niche of L. fortunei.…”

Section: Introductionmentioning

confidence: 99%

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The ShearStress importance on the spatial distribution pattern of the invader Limnoperna fortunei in the Upper Paraná River Basin. - An assessment based on the Spatial Distribution Models

2016

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The introduction of the golden mussel, Limnoperna fortunei (Dunker, 1857) in South America was related to the discharge of ballast water, with its first record in 1991 in the La Plata River estuary. Since then, the species is spreading throughout the continent, with several economic and ecological negative consequences. Aim: To model, in the headwaters of Parana River, the spatial distribution of L. fortunei and to understand the determinants of the current pattern of species distribution and the risk of invasion of areas not yet colonized. Methods: The ecological niche of L. fortunei was modeled using the algorithm MAXENT (Maximum Entropy Method) combined with records of occurrence of the bivalve, limnological data and the shear force measured by the index Hack (SL). The evaluation of the performance of different models was based on AUC (Area Under the Curve).The analysis of each variable's contribution to the responses of the models was made based on the Jackknife test, available in the Maxent program. The models were validated with real absence data collected between 2006 and 2007. Based on the limnological characterization of the area and on outputs of the models, this analysis sought to understand the contributing aspects to the current and potential spatial distribution and to verify the risk of invasion of environments not yet colonized by the species. Results/Conclusion: The limnological characterization showed that the ecological requirements for the species as, pH, calcium, oxygen and chlorophyll a, were appropriate in both the connected stretches, invaded and noninvaded. Turbidity showed significant spatial differences which proved to be higher in environments with higher levels of Hack (SL), i.e. higher energy fluvial. In addition, the algorithm showed the importance of hydrodynamical aspects expressed by Hack index (SL) to the spatial distribution of species, since the models with the best performances were those that considered the Hack index (SL) as one of the environmental layers of the mussel's niche. All models indicated a high risk of invasion into the reservoir of São Simão. Keywords: invasive species, biological invasions, niche modeling, Maxent, ecological requirements.

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Colonization and Spread of Limnoperna fortunei in South America

Oliveira

Campos

Paolucci

et al. 2015

Limnoperna Fortunei

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Hydrological stress as a limiting factor of the invasion of Limnoperna fortunei (Dunker, 1857) in the Upper Paraná River (Brazil)

Cited by 11 publications

References 29 publications

More than two decades after the introduction of Limnoperna fortunei (Dunker 1857) in La Plata Basin

More than two decades after the introduction of Limnoperna fortunei (Dunker 1857) in La Plata Basin

The ShearStress importance on the spatial distribution pattern of the invader Limnoperna fortunei in the Upper Paraná River Basin. - An assessment based on the Spatial Distribution Models

Colonization and Spread of Limnoperna fortunei in South America

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