An Evaluation Pattern for Antimacrofouling Procedures: Limnoperna fortunei Larvae Study in a Hydroelectric Power Plant in South America

Darrigran, Gustavo; Damborenéa, Cristina; Greco, Nancy M.

doi:10.1579/0044-7447(2007)36[575:aepfap]2.0.co;2

Cited by 56 publications

(35 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…There was only few exceptions, 3 among the 48 distinct sampling sites. This seasonal pattern of variation is well-reported worldwide (Morton, 1977;Morton, 1982), including other regional studies (Cataldo and Boltovskoy, 2000;Darrigran et al, 2007), and population fluctuations were mainly explained by reproductive events.…”

Section: Discussionsupporting

confidence: 83%

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

Pessotto

Nogueira

2018

Braz. J. Biol.

View full text Add to dashboard Cite

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...

show abstract

Section: Discussionsupporting

confidence: 83%

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

Pessotto

Nogueira

2018

Braz. J. Biol.

View full text Add to dashboard Cite

show abstract

“…The variations in the densities of larval stages of L. fortunei throughout the year and in all sampled sites were not related only to higher temperature values, cited as the main factor limiting larval development of the species (Kimura & Sekiguchi, 1996;Cataldo et al, 2005;Darrigran et al, 2007). Our results agree with Oliveira et al (2011) and Spaccesi (2013), and suggest that the temperature per se is not able to explain the population dynamic of L. fortunei neither the periods of spawns.…”

Section: Discussionsupporting

confidence: 71%

Environmental variables driving the larval distribution of Limnoperna fortunei in the upper Paraná River floodplain, Brazil

2017

View full text Add to dashboard Cite

Aim:To verify the temporal dynamics of Limnoperna fortunei larval stages and to identify the main environmental variables driving the larval density patterns in an area highly impacted by reservoirs. Methods: Samplings were performed quarterly, from February to December 2014, in 10 transects along to the Paraná River main channel. For each sample site, 100 L of water were filtered. The filtrated was fixed in alcohol 80%, and the larval stages were counted and classified under the optical microscope. Concomitant to biological collections we took some of the main water variables. We performed a Redundancy Analysis (RDA) in order to summarize the variations in densities of larval stages in relation to the main physical and chemical water variables. Results: We found a total of 200,590 L. fortunei larvae, in which 83.6% were identified as the initial stages. The most abundant months in L. fortunei larvae were December and February. The first two axes of RDA sum up 96% of the total data variation, and the most significant environmental variables explaining variations in larval densities were: water temperature, total nitrogen, electrical conductivity, phosphate, dissolved oxygen, depth and ammoniac ion. The warmer months were influenced by the major values of water temperature and depth, besides the higher densities of all larval stages. Conclusions: Our results indicate that L. fortunei reproduction follows a general pattern throughout the upper Paraná River floodplain, what seems to occur mainly between February and December. Thus, we suggest that measures for the L. fortunei control should be done during low-density periods (i.e., April to August), when the water level is low, and consequently, the dispersion of this species might be limited.Keywords: area of environmental preservation; propagule pressure; golden mussel; reproduction.Resumo: Objetivo: Verificar a dinâmica temporal dos estágios larvais de Limnoperna fortunei, e identificar as variáveis ambientais direcionadoras desses padrões, em uma área altamente impactada pela construção de reservatórios. Métodos: As amostragens foram realizadas trimestralmente, de 2

show abstract

“…O mexilhão dourado (Limnoperna fortunei) é um molusco bivalve, originário do sudeste asiático, o qual se estabeleceu como organismo invasor em diversas partes do mundo (DARRIGRAN et al, 2007). Sua presença na América do Sul foi confirmada na Bacia do Rio da Prata, Argentina (PASTORINO et al, 1993), e atualmente sua expansão se faz presente ao longo das bacias hidrográfi-cas da América do Sul (Paraná-Uruguai e Guaíba), sendo verificado nos rios da Argentina, Uruguai, Paraguai, Bolívia e Brasil.…”

Section: Introductionunclassified

Acumulação de microcistinas no mexilhão dourado Limnoperna fortunei e riscos para a biota aquática

Minillo

Casali

Isique

et al. 2016

Rev. Bras. Ciênc. Ambient. (Online)

View full text Add to dashboard Cite

Endereço para correspondência:Alessandro Minillo -Universidade Estadual do Mato Grosso do SulRodovia Dourados/Ithaum, km 12, 7804-9970 -Dourados (MS), Brasil -E-mail: alminillo@yahoo.com.br RESUMOAs cianobactérias representam um componente natural da comunidade fitoplanctônica, mas estão frequentemente associadas com águas eutrofizadas. Os rios do estado de São Paulo estão em processo contínuo de eutrofização, o que favorece frequentes florações de cianobactérias, prejuízos à qualidade da água para o consumo humano e riscos à biota aquática. O mexilhão dourado (Limnoperna fortunei) é uma espécie exótica invasora que pode ser vetor na transferência de toxinas de cianobactérias. O objetivo deste estudo foi avaliar a ocorrência de florações de cianobactérias no rio São José dos Dourados, suas toxinas produzidas e a possibilidade de ficotoxinas bioacumularem em Limnoperna fortunei. Foram detectadas, nas amostras, a dominância de cianobactérias tóxicas e cianotoxinas (microcistinas). Os resultados indicaram que L. fortunei acumularam microcistinas. As florações de cianobactérias nas águas do rio estudado indicaram prejuízo ao ambiente associado à eutrofização e aos riscos da presença das cianotoxinas à biota aquática.Palavras-chave: bioacumulação; cianobactéria; ficotoxinas; espécies exóticas; molusco; eutrofização. ABSTRACTCyanobacterias are natural components of the phytoplankton community, but they are often associated with eutrophic waters. Rivers in the state of São Paulo are in a continuous process of eutrophication, which favors the frequent cyanobacteria blooms in these environments, compromises the quality of the water for human consumption and promotes risks to the aquatic biota. The golden mussel (Limnoperna fortune) is an invasive alien species that can be a vector in the transfer of cyanobacterial toxins. The aim of this study was to evaluate the cyanobacteria blooms occurrence in São José dos Dourados River, their cyanotoxins and the possibility of phycotoxins bioaccumulating in the Limnoperna fortunei. Toxic cyanobacterias and cyanotoxins (microcystins) were detected in the samples. The results indicated that L. fortunei accumulated microcystins. The cyanobacterial blooms in the water of the studied river indicated a damage to the environment associated with eutrophication and risks of cyanotoxins presence to the aquatic biota.

show abstract

An Evaluation Pattern for Antimacrofouling Procedures: Limnoperna fortunei Larvae Study in a Hydroelectric Power Plant in South America

Cited by 56 publications

References 11 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

Environmental variables driving the larval distribution of Limnoperna fortunei in the upper Paraná River floodplain, Brazil

Acumulação de microcistinas no mexilhão dourado Limnoperna fortunei e riscos para a biota aquática

Contact Info

Product

Resources

About