Redescription of Neoechinorhynchus (Neoechinorhynchus) golvani Salgado-Maldonado, 1978 (Acanthocephala: Neoechinorhynchidae) and description of a new species from freshwater cichlids (Teleostei: Cichlidae) in Mexico

Salgado‐Maldonado, Guillermo

doi:10.1007/s00436-013-3374-7

Cited by 12 publications

(12 citation statements)

References 23 publications

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“…The molecular data analyzed also suggest that families of Palaeacanthocephala must be reevaluated, since the delineation of monophyletic families was not clear in any of the topologies obtained, especially for species of Echinorhynchidae. The lack of sequences of different genera of Acanthocephala demonstrates that the use of molecular tools in defining species of Acanthocephala is still scarce and a large number of studies still describe and redescribe species based only on morphology [2,4,[28][29][30][31][32]. For Cavisomidae, for example, there are genetic sequences of only three species available in the GenBank, all of them from the genus Filisoma (F. bucerium, F. rizalinum and now F. caudata n.…”

Section: Phylogenetic Analysismentioning

confidence: 99%

A New Species of the Acanthocephalan Genus Filisoma (Cavisomidae) from Perciform Fishes in Rio de Janeiro, Brasil

Fernandes

Amin²,

Borges

et al. 2019

Acta Parasit.

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Background Twelve species of Filisoma Van Cleave, 1928 are recognized parasitizing tropical and subtropical fish. Four of these species were described from kyphosid fish and it has been suggested that a co-speciation may have occurred among species of Kyphosus Lacepède, 1801 and Filisoma, which could provide valuable information about the evolution history of this host-parasite system. Purpose During a survey of the helminth fauna of Kyphosus sectatrix (Linnaeus, 1758) and Kyphosus incisor (Cuvier, 1831) (Kyphosidae Jordan, 1887) off Rio de Janeiro coast, a new species of Filisoma was found and is described herein based on morphological, genetic, and ultrastructural data. Methods Fish were obtained off Rio de Janeiro coast, Brazil. The parasites found in the intestine were measured and drawings were made with a drawing tube. Type specimens were deposited at the Helminthological Collection of Oswaldo Cruz Institute (CHIOC). The ultrastructure was studied using scanning electron microscope. The genetic analysis included the study of the partial sequences of 18S, ITS1, 5.8S and 28S rDNA, and the mitochondrial cytochrome c oxidase 1 gene (cox 1), with phylogenetic reconstructions based on the maximum likelihood analysis. Results Filisoma caudata n. sp. is characterized by a proboscis with 16-18 longitudinal rows of 38-45 hooks each. Hooks are uniform in shape dorsoventrally, gradually decreasing in size towards the base of the proboscis. Anterior hooks are 30-45 μ long, middle hooks 30-35 μ long and 5 basal transversal hooks 20-30 μ long. The new species is differentiated from the closest species Filisoma filiformis Weaver and Smales, 2013 by the size and distribution of hooks, apart from having a subterminal vulva and a curved posterior trunk end (tail) measuring 500-1,000 long. Phylogenetic analysis based on 18S, 28S rDNA and mtDNA-cox1 markers grouped the new species with Filisoma bucerium Van Cleave, 1940 and Filisoma rizalinum Tubangui and Masiluñgan, 1946 showing a close relationship between these species of Cavisomidae Meyer, 1932 and Echinorhynchidae Cobbold, 1879; the latter represented by species of Acanthocephalus Koelreuther, 1771. The new species can be differentiated from others on morphological and molecular basis. A key to the 13 species of Filisoma Van Cleave, 1928 is provided. Conclusion Filisoma caudata n. sp. is described herein based on morphological, genetic, and ultrastructural data. The topologies of obtained phylogenies suggest that species of Echinorhynchidae should be reevaluated since the family is considered paraphyletic in all analyses conducted.

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Section: Phylogenetic Analysismentioning

confidence: 99%

A New Species of the Acanthocephalan Genus Filisoma (Cavisomidae) from Perciform Fishes in Rio de Janeiro, Brasil

Fernandes

Amin²,

Borges

et al. 2019

Acta Parasit.

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“…Thus far, in the Central and South American regions, 14 species of the subgenus Neoechinorhynchus have been described that occur in freshwater, estuarine/brackish, and saltwater fish: N. macronucleatus Machado, 1954; N. butternae Golvan, 1956; N. paraguayensis Machado, 1959; N. prochilodorum Nickol & Thatcher, 1971; N. curemai Noronha, 1973; N. golvani Salgado-Maldonado, 1978 ; N. roseum Salgado-Maldonado, 1978; N. pterodoridis Thatcher, 1981; N. villoldoi Vizcaino, 1992; N. pimelodi Brasil-Sato & Pavanelli, 1998; N. chimalapasensis Salgado-Maldonado et al, 2009; N. brentnickoli Monks et al , 2011; N. mamesi Pinacho-Pinacho et al , 2012; and N. panucensis Salgado-Maldonado, 2013 (Amin, 2002; Thatcher, 2006; Santos et al, 2008; Salgado-Maldonado et al 2010; Monks et al , 2011; Pinacho-Pinacho et al , 2012; Salgado-Maldonado, 2013). Of the 14 species mentioned, six were described as parasitizing fish in Brazil.…”

Section: Resultsmentioning

confidence: 99%

A description ofNeoechinorhynchus(Neoechinorhynchus)veropesoin. sp. (Acanthocephala: Neoechinorhynchidae) from the intestine of the silver croaker fishPlagioscion squamosissimus(Heckel, 1840) (Osteichthyes: Sciaenidae) off the east coast of Brazil

et al. 2013

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Plagioscion squamosissimus (Heckel, 1840) (Osteichthyes: Sciaenidae) is considered piscivorous and is a generalist species endemic to the Amazon region. This fish is an important part of the natural ecosystems in which it occurs and provides basic functional components in the food web. The genus Neoechinorhynchus Stiles & Hassall, 1905 is distributed worldwide and parasitizes fish and turtles, but there are few reports of parasites of this genus in South America, due to the high diversity of fish that can be found in this region. A new species of thorny-headed worm (Acanthocephala: Neoechinorhynchidae) is described from P. squamosissimus from Guajará Bay, Belém, Pará, Brazil. In general, the unique characteristics of the hooks on the anterior end of the proboscis and the length-to-width ratio relationship separate this new species from other described species in the genus Neoechinorhynchus. Although the species in this genus are mostly found in North America, the dearth of species known from the neotropics may be due to the lack of studies in this region.

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“…Within the species' present (introduced) distribution range, Mexico is the only country in which the parasite fauna of A. nigrofasciata has been studied, and eight parasite species have been described (see checklists and studies by Moravec 1998;Salgado-Maldonado 2013;Salgado-Maldonado and RubioGodoy 2014). All studies combined detected a total of 20 different parasite species of the phyla Monogenea (two), Digenea (five), Cestoda (one), Acanthocephala (two), and Nematoda (ten).…”

Section: Parasite Fauna Of a Nigrofasciatamentioning

confidence: 99%

“…The aim was to analyze the parasite fauna and feeding ecology of the tropical cichlid Amatitlania nigrofasciata that has established a self-sustaining population in a thermally altered stream of the Rhine drainage system in Germany. Twenty parasite species are currently known to infect the study species (Moravec 1998;Salgado-Maldonado 2008;Sandlund et al 2010;Salgado-Maldonado 2013;SalgadoMaldonado and Rubio-Godoy 2014); however, all studies except one (Mexico) were conducted in the species' native range. We chose two sites at a distance of 3 km for sample collection and predicted that (a) the diet composition of A. nigrofasciata will differ between sampling sites due to differences in food supply related to local thermal regime, and accordingly (b) variation in parasite load (prevalence and intensity) and composition should be expected, especially for parasite types transmitted via the ingestion of intermediate hosts.…”

Section: Introductionmentioning

confidence: 98%

Cooling water of power plant creates “hot spots” for tropical fishes and parasites

et al. 2015

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Thermally altered water bodies can function as "hot spots" where non-native species are establishing self-sustaining populations beyond their tropical and subtropical native regions. Whereas many tropical fish species have been found in these habitats, the introduction of non-native parasites often remains undetected. Here, n = 77 convict cichlids (Amatitlania nigrofasciata) were sampled by electro-fishing at two sites from a thermally altered stream in Germany and examined for parasite fauna and feeding ecology. Stomach content analysis suggests an opportunistic feeding strategy of A. nigrofasciata: while plant material dominated the diet at the warm water inlet (∼30 °C), relative contributions of insects, plants, and crustaceans were balanced 3 km downstream (∼27 °C). The most abundant non-native parasite species was the tropical nematode Camallanus cotti with P = 11.90 % and P = 80.00 % at the inlet and further downstream, respectively. Additionally, nematode larvae of Anguillicoloides crassus and one specimen of the subtropical species Bothriocephalus acheilognathi were isolated. A. nigrofasciata was also highly infected with the native parasite Acanthocephalus anguillae, which could be linked to high numbers of the parasite's intermediate host Asellus aquaticus. The aim of this study was to highlight the risk and consequences of the release and establishment of ornamental fish species for the introduction and spread of non-indigenous metazoan parasites using the convict cichlid as a model species. Furthermore, the spread of non-native parasites into adjacent fish communities needs to be addressed in the future as first evidence of Camallanus cotti in native fish species was also found.

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Redescription of Neoechinorhynchus (Neoechinorhynchus) golvani Salgado-Maldonado, 1978 (Acanthocephala: Neoechinorhynchidae) and description of a new species from freshwater cichlids (Teleostei: Cichlidae) in Mexico

Cited by 12 publications

References 23 publications

A New Species of the Acanthocephalan Genus Filisoma (Cavisomidae) from Perciform Fishes in Rio de Janeiro, Brasil

A New Species of the Acanthocephalan Genus Filisoma (Cavisomidae) from Perciform Fishes in Rio de Janeiro, Brasil

A description ofNeoechinorhynchus(Neoechinorhynchus)veropesoin. sp. (Acanthocephala: Neoechinorhynchidae) from the intestine of the silver croaker fishPlagioscion squamosissimus(Heckel, 1840) (Osteichthyes: Sciaenidae) off the east coast of Brazil

Cooling water of power plant creates “hot spots” for tropical fishes and parasites

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