Impact of the Invasion from Nile Tilapia on Natives Cichlidae Species in Tributary of Amazonas River, Brazil

Bittencourt, Luana Silva; Leite-Silva, Uédio Robds; Silva, Luís Mauricio Abdon da; Tavares‐Dias, Marcos

doi:10.18561/2179-5746/biotaamazonia.v4n3p88-94

Cited by 28 publications

(28 citation statements)

References 6 publications

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“…The floodplains are influenced by semidiurnal tidal inundations that carry organic matter from the Amazon River, and are being strongly affected by urban eutrophication (Gama andHalboth 2004, Taiyama et al 2012) and invasion of Oreochromis niloticus (Bittencourt et al 2014). In this population of A. ocellatus we found a predominance of ectoparasites such as G. asota, I. multifiliis and Posthodiplostomum sp.…”

Section: Cestodamentioning

confidence: 62%

Diversity of parasites in wild Astronotus ocellatus (Perciformes, Cichlidae), an ornamental and food fish in Brazil

Tavares‐Dias

Neves

2017

An. Acad. Bras. Ciênc.

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The community composition of parasites was characterized in Astronotus ocellatus from a tributary of the Amazon River, northern Brazil. The prevalence was 87.9%, and a total of 526,052 parasites were collected, with a mean of 15,941 parasites per host. Nine taxa of ecto-and endo-parasites were identified, but Ichthyophthirius multifiliis was the dominant species, while Piscinoodinium pillulare, Clinostomum marginatum and Argulus multicolor were the least prevalent parasites. The parasite community was characterized by a low species richness, low diversity and low evenness. Host body size was not found to influence the composition of the parasite community, and there was no significant correlation between abundance of any parasite species and host body size. Papers published concerning the presence of parasites in this host in different hydrographic basins within Brazil indicate that 22 species of parasites are known to infect A. ocellatus, including species of ectoparasites and endoparasites. In Brazil, ectoparasites species, particularly crustaceans, have been found to parasitize A. ocellatus in relatively high numbers. This predominance of ectoparasites is typical of fish of lentic ecosystems. Finally, the presence of different endoparasites taxa suggest that A. ocellatus acts as an intermediate or definitive host.

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Section: Cestodamentioning

confidence: 62%

Diversity of parasites in wild Astronotus ocellatus (Perciformes, Cichlidae), an ornamental and food fish in Brazil

Tavares‐Dias

Neves

2017

An. Acad. Bras. Ciênc.

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“…It consists of linked fluvial physical systems that provide freshwater drainage, and is influenced by the high rainfall of the Amazon region and the daily tides of the Amazon River (GAMA & HALBOTH, 2004;TAVARES-DIAS et al, 2013;BITTENCOURT et al, 2014a). The waters that periodically spread out across the floodplain are rich in nutrients, because of the rapid decomposition of grasses, animal remains and the humus layer of the forest.…”

Section: Introductionmentioning

confidence: 99%

Are similar the parasite communities structure ofTrachelyopterus coriaceus and Trachelyopterus galeatus (Siluriformes: Auchenipteridae) in the Amazon basin?

Pantoja

Silva

Tavares‐Dias

2016

Rev. Bras. Parasitol. Vet.

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The aim of this study was to compare the parasite communities in two sympatric host populations, Trachelyopterus coriaceus and Trachelyopterus galeatus, which were caught in tributary of the Amazon River in Brazil. All the specimens of T. galeatus and T. coriaceus were infected by one or more parasites, such as Ichthyophthirius multifiliis, Tripartiella tetramerii, Trichodina nobilis, Cosmetocleithrum striatuli, Contracaecum sp., Cystidicoloides sp., Dadaytremoides parauchenipteri and Gorytocephalus spectabilis. Seven species were common to both host fish, and there were 1-5 parasite species per host. In both hosts, trichodinids were dominant. Aggregate dispersion of ectoparasites and endoparasites was observed, with greater aggregation among endoparasites. Only the ectoparasites species showed differences in intensity and/or abundance. However, the parasite communities of the two hosts were taxonomically similar (99%) and characterized by high prevalence and high abundance of ectoparasites, but with low diversity, prevalence and abundance of endoparasites. Trachelyopterus galeatus, the host with the larger body size, presented greater variation of Brillouin diversity and evenness, while T. coriaceus had higher Berger-Parker dominance values and total numbers of parasites. This first study on these parasites of T. galeatus and T. coriaceus showed that the life mode, size of the hosts and the availability of infective forms of the parasites were the main factors that influenced the parasite communities structure.Keywords: Amazon, auchenipterid, diversity, infection, parasites. ResumoO objetivo deste estudo foi comparar as comunidades, prevalência, intensidade, abundância e interações parasito-hospedeiro em duas populações de hospedeiros simpatricos, Trachelyopterus coriaceus e Trachelyopterus galeatus de um tributário do sistema do Rio Amazonas, no Brasil. Todos os espécimes de T. galeatus e T. coriaceus estavam infectados por um ou mais parasitos, tais como Ichthyophthirius multifiliis, Tripartiella tetramerii, Trichodina nobilis, Cosmetocleithrum striatuli, Contracaecum sp., Cystidicoloides sp., Dadaytremoides parauchenipteri e Gorytocephalus spectabilis. Sete espécies de parasitos foram comuns para ambos os peixes hospedeiros e houve de 1-5 espécies de parasitos por hospedeiro. Em ambos os hospedeiros houve dominância de espécies de tricodinídeos. A dispersão dos ectoparasitos e endoparasitos foi agregada, mas a maior agregação foi de endoparasitos. Somente espécies de ectoparasitos mostraram diferenças na intensidade e/ou abundância. Entretanto, as comunidades parasitárias dos dois hospedeiros foram taxonomicamente semelhante (99%) e caracterizada por alta prevalência e abundância de ectoparasitos, mas com baixa diversidade, prevalência e abundância de endoparasitos. Trachelyopterus galeatus, com maior tamanho corporal, apresentou maior variação da diversidade Brillouin e uniformidade, enquanto T. coriaceus teve maiores valores de dominância de Berger-Parker e número total de parasitos. Este primeiro ...

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“…In a tributary of the Amazonas River, the species O. niloticus successfully colonized the basin after 12 years of its invasion, by pressing of the native species (BITTENCOURT et al, 2014).…”

Section: Resultsmentioning

confidence: 99%

Registro da tilápia-do-nilo no Rio Mandira, Cananéia, Estado de São Paulo

2017

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The present short communication reports the occurrence of Nile Tilapia (Oreochromis niloticus) in the Mandira River, in the extractive reserve in the Cananéia estuary, São Paulo State. In May 2014, using dip nets, we collected five specimens of O. niloticus in the estuary, with length ranging from 1.4 to 2.5 cm and weight between 0.8 and 2.3 g. Samplings performed in July indicated the presence of additional four specimens of O. niloticus in other stretches of the same river. The occurrence of alien species in conservation areas has high ecological importance, as they can cause environmental and biodiversity alterations; in Brazil, the introduction of alien species is usually related to economic activities, such as the Nile tilapia aquaculture.

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Impact of the Invasion from Nile Tilapia on Natives Cichlidae Species in Tributary of Amazonas River, Brazil

Abstract: 4. Biólogo. Doutorado em Aquicultura de Águas Continentais (CAUNESP-UNESP). Pesquisador da EMBRAPA-AP. Docente orientador do Programa de Pós-graduação em Biodiversidade Tropical (UNIFAP) e Programa de Pós-graduação em Biodiversidade e Biotecnologia (PPG BIONORTE).

Cited by 28 publications

References 6 publications

Diversity of parasites in wild Astronotus ocellatus (Perciformes, Cichlidae), an ornamental and food fish in Brazil

Diversity of parasites in wild Astronotus ocellatus (Perciformes, Cichlidae), an ornamental and food fish in Brazil

Are similar the parasite communities structure ofTrachelyopterus coriaceus and Trachelyopterus galeatus (Siluriformes: Auchenipteridae) in the Amazon basin?

Registro da tilápia-do-nilo no Rio Mandira, Cananéia, Estado de São Paulo

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