Checklist of Nematoda associated with the fishes of Brazil

Luque, José Luís; Aguiar, Julio C.; Vieira, Fabiano Matos; Gibson, David I.; Santos, Cláudia Portes

doi:10.11646/zootaxa.3082.1.1

Cited by 83 publications

(72 citation statements)

References 186 publications

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“…Studies that have recorded the occurrence of metazoan parasites in T. nematurus are summarized by MachadoFilho (1959), Pinto & Noronha (1976), Thatcher (1991Thatcher ( , 2006, Moravec (1998), Kohn & Paiva (2000), Kohn et al (2007), Santos et al (2008), Eiras et al (2010) and Luque et al (2011). Some of these studies reported the host species to be T. paranensis, which is now considered to be a junior synonym of T. nematurus (Malabarba, 2004).…”

Section: Introductionmentioning

confidence: 99%

Variation in the parasite community of the sardine fishTriportheus nematurus(Actinopterygii: Characidae) from the Medalha lagoon in the Pantanal wetland, Brazil

2013

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In July 2009 and July 2010 (two dry periods separated by an atypically large flood in the Pantanal wetland of Brazil), 34 and 33 specimens of the sardine fish Triportheus nematurus were collected, respectively, for the study of the metazoan parasite community of this species. Parasite ecological and community descriptors were calculated for both host samples, and possible similarities were tested statistically. Five species of metazoan parasites were identified, four of which were common to both host samples. A total of 61 metazoan parasites were collected from all fish hosts (17 specimens in July 2009 (mean: 0.5 ± 0.66 parasites/fish) and 44 specimens in July 2010 (mean: 1.33 ± 1.41 parasites/fish)). The nematode Procamallanus hilarii and the monogenean Anacanthorus sp. were the most prevalent and abundant species in 2009 and 2010, respectively. The mean total abundance and species richness were significantly higher in 2010. Parasite communities in both samples of T. nematurus were characterized by species with low prevalence, abundance, mean total abundance and species richness, thus indicating low parasite diversity. Significant differences in the prevalence and abundance of P. hilarii and Anacanthorus sp. between the two samples allowed the discrimination of infracommunities, which were united in two distinct groups. This appears to be the first evidence that the peculiar hydrological dynamics of the southern Pantanal wetland (Brazil) exert an important influence over the structure of the parasite community.

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Section: Introductionmentioning

confidence: 99%

Variation in the parasite community of the sardine fishTriportheus nematurus(Actinopterygii: Characidae) from the Medalha lagoon in the Pantanal wetland, Brazil

2013

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“…Neotropical species of Procamallanus belong to the subgenera Procamallanus Baylis, 1923, Spirocamallanus, and Denticamallanus Moravec and Thatcher, 1997(Luque, Aguiar, Vieira, Gibson, & Santos, 2011Moravec, 1998). Luque et al (2011) listed all 22 species of Procamallanus so far recorded in Brazil.…”

Section: Introductionmentioning

confidence: 99%

“…Luque et al (2011) listed all 22 species of Procamallanus so far recorded in Brazil. Vaz and Pereira (1934) reported Procamallanus hilarii Vaz and Pereira, 1994, parasitizing the small intestine of Salminus hilarii Valenciennes, 1849 from the Santo Amaro Dam, São Paulo State, Brazil.…”

Section: Introductionmentioning

confidence: 99%

“…bimaculatus, A. fasciatus, Hoplias malabaricus, Leporinus obtusidens (Valenciennes, 1836), Oligosarcus jenynsii (Günther, 1864), Pimelodus albicans (Valenciennes, 1840), and Salminus brasiliensis (Cuvier, 1816) in Argentina (Ramalho, 1997(Ramalho, , 2005. Luque et al (2011) also cited the characid Oligosarcus macrolepis Steindachner, 1877 as a host of this species, but the collection site was not reported. While Lima et al (2003) and Buckup, Menezes, and Ghazzi (2007) report that O. macrolepis occurs in the Jequitinhonha river basin in Bahia and Minas Gerais, these states were not surveyed by Luque et al (2011).…”

Section: Introductionmentioning

confidence: 99%

“…Luque et al (2011) also cited the characid Oligosarcus macrolepis Steindachner, 1877 as a host of this species, but the collection site was not reported. While Lima et al (2003) and Buckup, Menezes, and Ghazzi (2007) report that O. macrolepis occurs in the Jequitinhonha river basin in Bahia and Minas Gerais, these states were not surveyed by Luque et al (2011). Their collections were restricted to the states of Ceará, Rio de Janeiro, São Paulo, Paraná, and Rio Grande do Sul.…”

Section: Introductionmentioning

confidence: 99%

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Supplemental observations on the morphology of Procamallanus (Spirocamallanus) hilarii (Nematoda: Camallanidae) parasitizing two species of Astyanax (Characiformes: Characidae) and ecological analyses

Gallas¹,

Bencke-Amato²

2015

Revista Mexicana de Biodiversidad

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Revista Mexicana de Biodiversidad 86 (2015) 590-596 Taxonomy and systematics Supplemental observations on the morphology of Procamallanus (Spirocamallanus) hilarii (Nematoda: Camallanidae) parasitizing two species of Astyanax (Characiformes: Characidae) and ecological analyses Observaciones suplementarias sobre la morfología de Procamallanus (Spirocamallanus) hilarii (Nematoda: Camallanidae) parasitando dos especies de Astyanax (Characiformes: Characidae) y análisis ecológico Abstract Procamallanus (Spirocamallanus) hilarii parasitizes several fish species but only few studies on morphology and ecology have been published. In this study we describe the morphology of P. (S.) hilarii parasitizing Astyanax aff. fasciatus and Astyanax jacuhiensis, and compare ecological parameters of their populations. Seventy A. aff. fasciatus and 60 A. jacuhiensis individuals were captured in Lake Guaiba, Rio Grande do Sul State, Brazil, between March 2012 and December 2013. The specimens of P. (S.) hilarii presented an oval oral opening with 6 cuticular elevations and 2 groups of papillae (one internal and one external) in the anterior region of the body. Males have 8 pairs of sessile caudal papillae (4 pre-cloacal and 4 post-cloacal), spicules with distal bifurcation and lack caudal alae. The prevalence of P. (S.) hilarii was higher in A. aff. fasciatus (69%) than in A. jacuhiensis (18%), whereas there was no difference in mean intensity (respectively, 2 and 5) and mean abundance (respectively, 1.6 and 0.9) of infection between the 2 host species. We suggest that the consumption of copepods, intermediate hosts of P. (S.) hilarii, Resumen Procamallanus (Spirocamallanus) hilarii (P. (S.) hilarii) parasita varias especies de peces, pero son escasos los estudios publicados sobre su morfología y ecología. En este estudio describimos la morfología de P. (S.) hilarii que parasitan las mojarras Astyanax aff. fasciatus y A. jacuhiensis y comparamos diferentes parámetros ecológicos de sus poblaciones. Entre marzo de 2012 y diciembre de 2013, capturamos 70 individuos de Astyanax (A.) aff. fasciatus y 60 de A. jacuhiensis en el Lago Guaiba, estado de Rio Grande do Sul, Brazil. Los ejemplares de P. (S.) hilarii presentaron una abertura oral de forma oval con 6 elevaciones cuticulares y 2 grupos de papilas (una interna y otra externa) en la región anterior del cuerpo. Los machos presentaron 8 pares de papilas caudales sésiles (4 precloaca y 4 poscloaca), espículas con bifurcación distal y ausencia de ala caudal. La prevalencia de P. (S.) hilarii fue mayor en A. aff. fasciatus (69%) que en A. jacuhiensis (18%). Sin embargo, no existieron diferencias en la intensidad promedio (2 y 5 respectivamente) y la abundancia promedio (1.6 y 0.9 respectivamente) de infección entre las 2 especies hospederas. Sugerimos que el consumo de copépodos, hospederos intermediarios de P. (S.) hilarii, podría explicar esta diferencia. Derechos Reservados © 2015 Universidad Nacional Autónoma de México, Instituto de Biología. Este es un artículo de acceso abierto distri...

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Parasites of Urophycis brasiliensis (Gadiformes: Phycidae) as indicators of marine ecoregions in coastal areas of the South American Atlantic

et al. 2014

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The potential value of parasites as ecosystem markers was tested by analyzing the metazoan assemblages of Urophycis brasiliensis caught in four locations distributed in three ecoregions of the Warm Temperate Southwestern Atlantic. A total of 5,001 metazoan parasites belonging to 33 species were found. The identified parasites varied across locations in terms of presence, prevalence, and abundance, and their multivariate analyses resulted in clear similarity patterns. No differences were observed between two locations of the same ecoregion, whereas an evident separation of samples was observed across ecoregions in support of the existing hypotheses regarding the ecoregional division of the southwestern Atlantic. We proposed that parasite assemblages, which are composed of several metazoan phyla, are potentially useful as ecosystem indicators. This suggestion is derived from the combined evidence of the evolutionary history and biogeography of multiple lineages, which is expected to be more efficient in capturing recurrent patterns in overall biodiversity than individual lineages. Furthermore, as many parasites have complex life cycles, their distribution patterns are dependent not only on environmental conditions but also on the distribution and population density of all hosts involved in their life cycles, adding further sources of distributional variability that act synergistically to define robust geographical patterns. The selection of long-lived parasites and their comparative analysis provided evidence supporting the existence of three different stocks in the four sampled areas. The best parasite tags were those with low specificity in fish hosts, constituting promising biological tags for the stock discrimination of other fish species in the region.

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Checklist of Nematoda associated with the fishes of Brazil

Cited by 83 publications

References 186 publications

Variation in the parasite community of the sardine fishTriportheus nematurus(Actinopterygii: Characidae) from the Medalha lagoon in the Pantanal wetland, Brazil

Variation in the parasite community of the sardine fishTriportheus nematurus(Actinopterygii: Characidae) from the Medalha lagoon in the Pantanal wetland, Brazil

Supplemental observations on the morphology of Procamallanus (Spirocamallanus) hilarii (Nematoda: Camallanidae) parasitizing two species of Astyanax (Characiformes: Characidae) and ecological analyses

Parasites of Urophycis brasiliensis (Gadiformes: Phycidae) as indicators of marine ecoregions in coastal areas of the South American Atlantic

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