Neoechinorhynchus pterodoridis n. sp. (Acanthocephala: Neoechinorhynchidae) do bacu liso (Pterodoras granulosus) da Amazônia Brasileira

Thatcher, Vernon E.

doi:10.1590/1809-43921981113445

Cited by 14 publications

(11 citation statements)

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“…Neochinorhynchus pterodoridis collected from A. falcatus and A. falcirostris is an acanthocephalan species that was described originally from Pterodoras granulosus Humboldt and Valenciennes 1821, a siluriform Doradidae (THATCHER, 1981). For the two host populations studied here, the structure of the component community was constituted especially by species of generalist parasites, with a direct or indirect life cycle.…”

Section: Discussionmentioning

confidence: 94%

Parasite communities of the predatory fish, Acestrorhynchus falcatus and Acestrorhynchus falcirostris, living in sympatry in Brazilian Amazon

Hoshino

Neves

Tavares‐Dias

2016

Rev. Bras. Parasitol. Vet.

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This study investigated the parasite communities of wild Acestrorhynchus falcatus and Acestrorhynchus falcirostris populations living in sympatry in Brazilian Amazon. In these two hosts, a total of 12 parasite species e 1-9 parasite species were found per fish, and 10 of these species are metazoans. Eight species of parasites were common to both host species and four of them exhibited differences in abundance and/or prevalence. Parasite communities of the hosts were taxonomically similar (83%) and composed of both ectoparasites and endoparasites, and characterized by high prevalence and high abundance of endoparasites and an aggregated dispersion pattern. For A. falcirostris, the dominant parasite was Ichthyophthirius multifiliis, and for A. falcatus, it was Piscinoodinium pillulare. Shannon diversity and Berger-Parker dominance were similar for both hosts, while the parasites species richness and evenness showed differences influenced by the ectoparasites species. These two populations of hosts that inhabited the same geographical area had different sizes, but were exposed to the same infective stages, and acquired qualitatively and quantitatively similar endoparasites community, thus indicating that the amounts and types of prey congeneric that they were eating were similar. Therefore, the overlap in the same occurrence area play an important role in the parasite communities to these phylogenetically related hosts.

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Section: Discussionmentioning

confidence: 94%

Parasite communities of the predatory fish, Acestrorhynchus falcatus and Acestrorhynchus falcirostris, living in sympatry in Brazilian Amazon

Hoshino

Neves

Tavares‐Dias

2016

Rev. Bras. Parasitol. Vet.

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“…A total of 146 parasites were collected, such as P. (S) inopinatus (Camallanidae: Nematoda), Contracaecum sp. larvae (Anisakidae: Nematoda) and Neoechinorhynchus pterodoridis Thatcher, 1981 (Neoechinorhynchidae: Acanthocephala) collected from the intestine. However, the dominance was of P. (S) inopinatus (Table 1).…”

Section: Resultsmentioning

confidence: 99%

CONDITION FACTOR AND ECOLOGY OF ENDOHELMINTHS IN <i>Metynnis lippincottianus</i> FROM THE CURIAíÅ¡ RIVER, IN EASTERN AMAZON (BRAZIL)

et al. 2020

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Fish are among the vertebrate groups most susceptible to parasitic infections due to environmental characteristics that can favor the development of parasites; also, position of the host in food web has been associated with the parasitism. The aim of this study was to investigate the ecology of parasites endohelminth in Metynnis lippincottianus from the Curiaú River, in eastern Amazon (Brazil), as well as to evaluate the parasite-host interactions. From 110 specimens of M. lippincottianus examined, 76.3% were infected by one or more parasite species, and a total of 146 parasites such as Procamallanus (Spirocamallanus) inopinatus (Nematoda), larvae of Contracaecum sp. (Nematoda) and Neoechinorhynchus pterodoridis (Acanthocephala) were collected in intestine. However, the dominance was of nematode species, and the parasites had uniform or random dispersion. The parasitic infracommunities showed low Shannon-Wiener diversity (0.2 ± 0.3), low evenness (0.2 ± 0.3) and low species richness of parasites (1.1 ± 0.8). The abundance of Contracaecum sp. presented a weak positive correlation with the weight of hosts, and relative condition factor was not affected by the parasitism. This first study about parasites of M. lippincottianus from Curiaú River basin is the first report of N. pterodoridis for this host.

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“…Neoechinorhynchus pimelodi differs from N. paraguayensis Machado Filho, 1959, originally collected from a "pei xe-martin" (specific name ofthe host was not stated by the author) from the Rio Paraguay and from Geophagus brasiliensis from the Guandu-Açu River, Rio de Janeiro, by NrCKOL & PADlLHA (1979), and from N. pterodoridis Thatcher, 1981 from Pterodoras granulosus (Valenciennes) from the Amazon River, Manaus, especially by smaller size and greater width of the eggs (l8x14) compared to the eggs ofthese two species (29x12 and 24-27x7-9, respectively). Selected eggs of N. pimelodi present concentric layers of fine texture involving the acanthor, while those ofN.…”

Section: Discussionmentioning

confidence: 99%

Neoechinorhynchus pimelodi sp.n. (Eoacanthocephala, Neoechinorhynchidae) parasitizing Pimelodus maculatus Lacépède, "mandi-amarelo" (Siluroidei, Pimelodidae) from the basin of the São Francisco river, Três Marias, Minas Gerais, Brazil

Brasil-Sato

Pavanelli

1998

Rev. Bras. Zool.

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ABSTRACT. Neoechillorhynchus pimelodi sp.n. is described as the first record of Acanthocephala in Pimelodlls macula/lIs Lacépéde, 1803, collected in the São Francisco ri ver, Três Marias, Minas Gerais. The new species is distinguished from other of the genus by lhe lhree circles of hooks of different sizes, and by lhe eggs measurements. The hooks measuring 100-112 (105), 32-40 (36) and 20-27 (23) in length in lhe males and 102-1 42 ( 129), 34-55 (47) and 27-35 (29) in lenglh in lhe females for the anterior, middle and posterior circles. The eggs measuring 15-22 (18) in length and 12-15 ( 14) in width, with concentric layers oftexture smooth, enveloping lhe acanthor.

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Neoechinorhynchus pterodoridis n. sp. (Acanthocephala: Neoechinorhynchidae) do bacu liso (Pterodoras granulosus) da Amazônia Brasileira

Cited by 14 publications

References 3 publications

Parasite communities of the predatory fish, Acestrorhynchus falcatus and Acestrorhynchus falcirostris, living in sympatry in Brazilian Amazon

Parasite communities of the predatory fish, Acestrorhynchus falcatus and Acestrorhynchus falcirostris, living in sympatry in Brazilian Amazon

CONDITION FACTOR AND ECOLOGY OF ENDOHELMINTHS IN <i>Metynnis lippincottianus</i> FROM THE CURIAíÅ¡ RIVER, IN EASTERN AMAZON (BRAZIL)

Neoechinorhynchus pimelodi sp.n. (Eoacanthocephala, Neoechinorhynchidae) parasitizing Pimelodus maculatus Lacépède, "mandi-amarelo" (Siluroidei, Pimelodidae) from the basin of the São Francisco river, Três Marias, Minas Gerais, Brazil

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Neoechinorhynchus pterodoridis n. sp. (Acanthocephala: Neoechinorhynchidae) do bacu liso (Pterodoras granulosus) da Amazônia Brasileira

Cited by 14 publications

References 3 publications

Parasite communities of the predatory fish, Acestrorhynchus falcatus and Acestrorhynchus falcirostris, living in sympatry in Brazilian Amazon

Parasite communities of the predatory fish, Acestrorhynchus falcatus and Acestrorhynchus falcirostris, living in sympatry in Brazilian Amazon

CONDITION FACTOR AND ECOLOGY OF ENDOHELMINTHS IN <i>Metynnis lippincottianus</i> FROM THE CURIAí­Å¡ RIVER, IN EASTERN AMAZON (BRAZIL)

Neoechinorhynchus pimelodi sp.n. (Eoacanthocephala, Neoechinorhynchidae) parasitizing Pimelodus maculatus Lacépède, "mandi-amarelo" (Siluroidei, Pimelodidae) from the basin of the São Francisco river, Três Marias, Minas Gerais, Brazil

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CONDITION FACTOR AND ECOLOGY OF ENDOHELMINTHS IN <i>Metynnis lippincottianus</i> FROM THE CURIAíÅ¡ RIVER, IN EASTERN AMAZON (BRAZIL)