Alimentação de Limnoperna fortunei (Dunker 1857): taxas de filtração com ênfase ao uso de Cyanobacteria

Rückert, Gabriela von; Campos, Minerva; Rolla, Maria Edith

doi:10.4025/actascibiolsci.v26i4.1523

Cited by 9 publications

(8 citation statements)

References 15 publications

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“…From the observed decrease of chlorophyll a in M200 ( Figure 3A), it appears that algae is the main food source for L. fortunei (Karatayev et al, 2003). In the authors' microbiological analysis of raw water, Cyanobacteria were found to be the main component of algae, confirming an earlier report by von Rückert et al (2004). Therefore, it appears that L. fortunei feeds mainly on Cyanobacteria that are in the raw water transportation system.…”

Section: Discussionsupporting

confidence: 80%

Algae Consumption and Nitrate Removal in a Raw Water Transport System by Limnoperna fortunei and its Associated Microorganisms

Zhang¹,

Cui²,

Huang

2014

Water Environment Research

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This laboratory‐scale study investigated the effect of Limnoperna fortunei on chlorophyll a, phosphates, ammonia, and nitrates in a simulated raw water transport system, with a special focus on the isolation and identification of microbes in the biofilm attached to the shell surface. These microbes appear to be involved in the decreased concentration of nitrates observed in the water. The microbial communities in the raw water and on the surface of the mussel's shell were investigated through various methods, including a 16S rRNA phylogenetic analysis, which revealed significant diversity in terms of the structure and abundance of microbial species present. Two aerobic denitrifying bacteria (I‐N38 and I‐N45) were identified in shell biofilm that were capable of removing 95.5 and 100% of nitrates, respectively, within 24 hours.

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Section: Discussionsupporting

confidence: 80%

Algae Consumption and Nitrate Removal in a Raw Water Transport System by Limnoperna fortunei and its Associated Microorganisms

Zhang¹,

Cui²,

Huang

2014

Water Environment Research

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“…Interestingly, according to the data presented by Sylvester et al (2005), the filtration rates recorded in the present study for L. fortunei were among the highest ever recorded for invasive bivalves (Table 2). The discrepancies between the values obtained in the only three studies that quantified filtration rates in L. fortunei (Von Rückert et al 2004, Sylvester et al 2005 andthe present study) were probably due to the methodological differences, particularly with respect to their experimental design and the type of food (cyanobacteria; Chlorella sp. ; Algamac-2000® and Scenedesmus sp., respectively).…”

Section: Filtration Ratescontrasting

confidence: 42%

The effect of temperature and body size on filtration rates of Limnoperna fortunei (Bivalvia, Mytilidae) under laboratory conditions

Pestana

Ostrensky

Boeger

et al. 2009

Braz. arch. biol. technol.

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“…Unpublished studies by Campos show that adult mortality at calcium concentrations of 1.5, 2.0 and 11.6 mg.L -1 for 15 days is less than 5% for the golden mussel individuals tested in the laboratory. Upstream of the dam, the minimum values of calcium are 2.0 mg.L -1 in the São Simão reservoir and 3.56 mg.L -1 in the tributaries, so they are always higher than the minimum level golden mussel in the river Paranaíba and its absence in the São Simão reservoir: -linked by locks and the artificial Presidente Epitacio channel, all HPPs along the Paraná River upstream along the Paraná-Tietê waterway have been colonised by the golden mussel (Von Ruckert et al, 2004). However, the mussel has not yet been established in the São Simão HPP, the first situated HPP on the Paranaíba River.…”

Section: Discussionmentioning

confidence: 99%

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

2012

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Hydrological stress as a limiting factor of the invasion ofLimnoperna fortunei (Dunker, 1857) in the Upper Paraná River (Brazil)Estresse hidrológico como fator limitante para a invasão de Limnoperna fortunei (Dunker,1857) River, including the São Simão hydroelectric reservoir. Physicochemical characteristics of the water were analysed, and a Stream Length-Gradient Index calculated for the study area. Results: Adult mussels were easily found attached to the hulls of barges that travel on this stretch of the Paraná-Tietê waterway and on vessels that were docked in the harbours of grain exporters located in São Simão (GO). However, no larvae or adults were found near the harbours or upstream from them at the São Simão hydroelectric reservoir. The pH and concentration of calcium and dissolved oxygen values among lotic habitats and the reservoir were similar: DO values were close to 7 mg.L -1 , the average pH was near 7, average values of total Ca ranged between 4 and 6 mg.L -1 and the chlorophyll-a levels were not restrictive to the mussel. Conclusion: Physical and chemical water parameters show that habitats were suitable for establishment of the mussel. In addition to a low pressure of propagules, this paper proposes some hydrological variables, such as the energy of the fluvial stretches, expressed by the Stream Length-Gradient Index and changes in flow downstream of the dam as barriers to the establishment of the species, discouraging larval settlement, and decreasing survival and recruitment.Keywords: Limnoperna fortunei, invasive species, Paraná River watershed, golden mussel. 2012, vol. 24, no. 1, p. 64-82 http://dx.doi.org/10.1590/S2179-975X2012005000027Hydrological stress as a limiting..., o pH médio está em torno de 7, os valores médios de Ca total variam entre 4 e 6 mg.L -1 e os níveis de clorofila a não são restritivos para esta espécie de mexilhão. Conclusão: As variáveis físico-químicas da água indicam que os habitats são adequados para o estabelecimento da espécie. Além de uma baixa pressão de propágulos, este trabalho propõe algumas variáveis hidrológicas, tais como, a energia dos trechos fluviais e mudanças da vazão a jusante da barragem, como barreiras para o estabelecimento da espécie, uma vez que estes aspectos podem desfavorecer a fixação e sobrevivência das larvas e diminuir o recrutamento.Palavras-chaves: Limnoperna fortunei, espécies invasoras, Bacia do rio Paraná, mexilhão dourado.

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Alimentação de Limnoperna fortunei (Dunker 1857): taxas de filtração com ênfase ao uso de Cyanobacteria

Cited by 9 publications

References 15 publications

Algae Consumption and Nitrate Removal in a Raw Water Transport System by Limnoperna fortunei and its Associated Microorganisms

Algae Consumption and Nitrate Removal in a Raw Water Transport System by Limnoperna fortunei and its Associated Microorganisms

The effect of temperature and body size on filtration rates of Limnoperna fortunei (Bivalvia, Mytilidae) under laboratory conditions

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

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