O papel de Ancyrocephalinae (Monogenea: Dactylogyridae), parasito de Geophagus brasiliensis (Pisces: Cichlidae), como indicador ambiental

Madi, Rubens Riscala; Ueta, Marlene Tiduko

doi:10.4322/rbpv.01802008

Cited by 19 publications

(11 citation statements)

References 6 publications

(7 reference statements)

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“…It was observed in the present study that the prevalence and mean abundance of total monogeneans and A. mizelli were significantly greater in the lentic stretch. This significant difference corroborates previous studies that reported the use of monogeneans as indicators of environmental impact (SIDDALL et al, 1997;VITAL, 2008;BAYOUMY et al, 2008;MADI;UETA, 2009). Furthermore, this study evaluated the use of these parasites as environmental indicators for the effect of an impoundment (Jurumirim dam) on parasite communities, an approach that has not previously been reported in the literature.…”

Section: Discussionsupporting

confidence: 82%

“…Bayoumy et al (2008) studied monogeneans of some fish in the Gulf of Suez, Red Sea, as bioindicators for heavy metals, and found highly significant positive relationships between water temperature and prevalence of monogeneans, as well as between metal concentrations and prevalence. Madi and Ueta (2009) analyzed the role of monogeneans Nickol and Thatcher (1971) belonging to the Ancyrocephalinae family parasitizing Geophagus brasiliensis, as environmental bioindicators in reservoirs with distinct trophic characteristics in the state of São Paulo, Brazil (Juqueri reservoir -eutrophic; Jaguari reservoir -oligomesotrophic), and showed that variations in the prevalence and intensity of infection of these parasites were associated with variations in the amount of suspended material in the water of each reservoir. It was observed in the present study that the prevalence and mean abundance of total monogeneans and A. mizelli were significantly greater in the lentic stretch.…”

Section: Discussionmentioning

confidence: 99%

“…In this context, monogeneans of fish have been used to assess environmental impacts, since they have been shown to be suitable indicators (MADI;UETA, 2009). Steindachnerina insculpta is a host that fits the criteria proposed by Overstreet (1997) and Sures (2004) to serve as a bioindicator fish species: restricted home range, parasites needing more than one host in the life cycle, easy to sample, small size and wide geographical distribution.…”

Section: Introductionmentioning

confidence: 99%

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Helminths of Steindachnerina insculptain two distinct stretches of the Taquari River, state of São Paulo, Brazil

Acosta

Queiroz

Brandão

et al. 2013

Rev. Bras. Parasitol. Vet.

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The purpose of this study was to evaluate the helminth fauna of Steindachnerina insculpta in the Taquari River, a tributary of the Jurumirim reservoir in the state of São Paulo, and to investigate whether some helminth species may act as a bioindicator of environmental impact. The host fish sample was composed of 60 specimens, with 30 individuals sampled in a lotic stretch and 30 in a lentic stretch. The following were found: the monogeneans Anacanthoroides mizelli, Diaphorocleidus kabatai, Urocleidoides sp. and Euryhaliotrema chaoi; the digenean Sphincterodiplostomum musculosum and unidentified metacercariae; the nematode Travnema travnema and unidentified larvae; and the acanthocephalan Gorytocephalus plecostomorum. The total prevalence of monogeneans (z = 3.14; p = 0.002) and A. mizelli (z = 3.879; p ≤ 0.001), as well as the mean abundance of total monogeneans (U = 642.0; p ≤ 0.001) and A. mizelli (U = 623.5; p ≤ 0.001), were higher in the lentic stretch. Steindachnerina insculpta and its monogeneans comprise a potential group that could be used to investigate environmental impact, as demonstrated in this study.Keywords: Neotropical fish, teleost, parasites, bioindicator, reservoir. ResumoO objetivo desde estudo foi avaliar a helmintofauna de Steindachnerina insculpta no rio Taquari, um tributário do reservatório de Jurumirim, estado de São Paulo, e verificar se alguma espécie pode agir como bioindicadora de impacto ambiental. A amostragem de peixes foi composta de 60 espécimes, com 30 indivíduos amostrados no trecho lótico e 30 no trecho lêntico. Foram encontrados os monogenóides: Anacanthoroides mizelli, Diaphorocleidus kabatai, Urocleidoides sp. e Euryhaliotrema chaoi; o digenético Sphincterodiplostomum musculosum e metacercárias não identificadas, o nematoide Travnema travnema e larvas não identificadas; e o acantocéfalo Gorytocephalus plecostomorum. A prevalência total de monogenóides (z = 3,14; p = 0,002) e A. mizelli (z = 3,879; p ≤ 0,001) e também a abundância média de monogenóides total (U = 642,0; p ≤ 0,001) e A. mizelli (U = 623,5; p ≤ 0,001) foram maiores no trecho lêntico. Steindachnerina insculpta e seus monogenóides compõem um grupo em potencial que pode ser usado para investigar impactos ambientais, como mostrado neste estudo.

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Section: Discussionsupporting

confidence: 82%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Helminths of Steindachnerina insculptain two distinct stretches of the Taquari River, state of São Paulo, Brazil

Acosta

Queiroz

Brandão

et al. 2013

Rev. Bras. Parasitol. Vet.

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“…Dias et al (2004) suggest that the highest intensity of parasitism in larger specimens is explained by the progressive accumulation of parasites over time. For ectoparasites, the observed correlation between morphometric and ecological parameters may be related to environmental factors such as quantity of organic material present in water or solid materials in suspension (Madi and Ueta, 2009). However, for Contracaecum sp.…”

Section: Discussionmentioning

confidence: 95%

Structure of the parasite infracommunity of Sciades proops from the Japaratuba River Estuary, Sergipe, Brazil

et al. 2015

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The catfish species Sciades proops inhabits muddy estuaries and shallow brackish lagoons, as well as freshwater. The spatial distribution of infection with Ergasilus sp. and Contracaecum sp. showed a typical pattern of aggregate distribution. The sex of the host did not influence parasitic infections, but infection with Ergasilus sp. showed a positive and significant correlation with biometric and epidemiologic parameters, whereas infection with Contracaecum sp. was correlated only with prevalence and abundance.

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“…Therefore, it can be assumed that the environmental conditions in which "traira" are found are also preferred by the parasites that cohabit with it. A recent study by Madi and Ueta (2009) demonstrated that Ancyrocephalinae (Monogenea: Dactylogyridae), a parasite of Geophagus brasiliensis, can serve as an environmental indicator. However, the authors reported higher mean intensity values than in this study.…”

Section: Discussionmentioning

confidence: 99%

Hematological parameters of Hoplias malabaricus (Characiformes: Erythrinidae) parasitized by Monogenea in lagoons in Pirassununga, Brazil

Corrêa

Karling

Takemoto

et al. 2013

Rev. Bras. Parasitol. Vet.

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Hematology is an important pathological and diagnostic tool. This paper describes the hematological parameters of 76 specimens of Hoplias malabaricus infested with monogenean parasites, which were collected from two lagoons. The hematological parameters included: erythrocyte count (Er), microhematocrit (Hct), hemoglobin (Hb), mean corpuscular volume (MCV), mean corpuscular hemoglobin (MCH) and mean corpuscular hemoglobin concentration (MCHC). The blood parameters showed no significant changes associated with the infestation. Water temperature was found to be negatively correlated with MCV and Hct, with values of r s = -0.52, p<0.0001 and r s = -0.48, p<0.0001, respectively. The mean Relative Condition Factor was Kn=1.01, indicating good health conditions of the fish in these lagoons. No correlation was found between the monogenean infestation and the blood parameters, or between the environmental factors and the monogeneans.Keywords: Parasites, blood cells, freshwater fish. ResumoA hematologia é uma importante ferramenta para patologia e diagnóstico. O presente estudo teve como objetivo descrever os parâmetros hematológicos de 76 espécimes de Hoplias malabaricus, coletados em duas lagoas, associados ao parasitismo por monogenético. Os parâmetros hematológicos foram: contagem de eritrócitos (Er), micro hematócrito (Hct), hemoglobina (Hb), volume corpuscular médio (VCM), hemoglobina corpuscular (HCM) e a concentração da hemoglobina cospuscular média (CHCM). Observou-se que não ocorreram mudanças significativas nos parâmetros sanguíneos relacionados com o parasitismo. Houve uma correlação negativa entre a temperatura da água o VCM e Hct, com valores de r s = -0,52, p<0,0001 e r s = -0,48, p<0,0001, respectivamente. O valor médio entre o fator de condição relativo foi de Kn = 1,01, indicando boas condições e os peixes estavam saudáveis nas lagoas estudadas. Não houve relação entre a infestação de monogeneas e os parâmetros sanguíneos, ou entre os fatores ambientais e as monogeneas.Palavras-chave: Parasitas, células sanguíneas, peixes de água doce.

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O papel de Ancyrocephalinae (Monogenea: Dactylogyridae), parasito de Geophagus brasiliensis (Pisces: Cichlidae), como indicador ambiental

Cited by 19 publications

References 6 publications

Helminths of Steindachnerina insculptain two distinct stretches of the Taquari River, state of São Paulo, Brazil

Helminths of Steindachnerina insculptain two distinct stretches of the Taquari River, state of São Paulo, Brazil

Structure of the parasite infracommunity of Sciades proops from the Japaratuba River Estuary, Sergipe, Brazil

Hematological parameters of Hoplias malabaricus (Characiformes: Erythrinidae) parasitized by Monogenea in lagoons in Pirassununga, Brazil

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