Tissue alterations in the pirarucu, Arapaima gigas, infected by Goezia spinulosa (Nematoda)

Menezes, Rodrigo Caldas; Santos, Sonia Maria Cursino dos; Ceccarelli, Paulo S.; Tavares, Luiz Eduardo Roland; Tortelly, Rogério; Luque, José L.

doi:10.1590/s1984-29612011000300005

Cited by 10 publications

(3 citation statements)

References 5 publications

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“…Numerosos espécimes adultos de G. spinulosa foram registrados causando lesões teciduais em A. gigas (Menezes et al 2011). Entre os danos mais severos causados aos peixes infectados por este parasita, destaca-se a destruição mecânica da mucosa do estômago, com perfurações nas paredes do estômago, o qual pode levar a altas mortalidades dos peixes (Santos & Moravec, 2009).…”

Section: Resultsunclassified

Influência de Metazoários Parasitas na Morte de Juvenis de Arapaima gigas (Schinz, 1822) Criados em uma Piscicultura na Amazônia Brasileira

Santana

Morey

Lima

et al. 2017

Revista Brasileira De Zoociências

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Influência de metazoários parasitas na morte de juvenis de Arapaima gigas (Schinz, 1822) criados em uma piscicultura na Amazônia Brasileira.Abstract. Influence of Metazoan Parasites in the Death of Juvenile Arapaima gigas (Schinz, 1822) Farmed in the Brazilian Amazon. One of the most serious problems in the production of Arapaima gigas in fish farms are the parasitic diseases, that influence negatively the quantity and quality of farmed fish and sometimes may lead to high mortalities, so the aim of this study was to identify the parasite species in 20 young A. gigas collected in a fish farm in the city of Manacapuru, Amazonas, Brazil and assess their influence on fish mortality through the use of parasitic indexes, distribution pattern and the relationship between the condition factor and parasite abundance. The fish, before dying, showed erratic swimming and breathing difficulties. After gill analysis, 1066 Monogenoidea were recorded and identified as Dawestrema cycloancistrium, parasitizing 100% of the analyzed fish with an average intensity of 53.3 ± 73.1 and presenting an aggregate distribution pattern in the hosts. Additionally, we also found one specimen of the Nematoda Goezia spinulosa and five specimens of the Acantocephala Polyacanthorhynchus macrorhynchus present in the gut. The low number of endoparasites along with the high values recorded for the relative condition factor (Kn) in A. gigas discards the possibility of fish death due to the influence of some endoparasites or nutritional deficiencies. However, behavioral manifestations, signs in the gills and high levels of D. cycloancistrium infestation makes this parasite responsible for the fish death. Resumo. Um dos problemas mais sérios na produção do pirarucu em pisciculturas são as doenças parasitarias, que influenciam negativamente na quantidade e qualidade dos peixes cultivados, podendo causar altas mortalidades, portanto, o objetivo do presente trabalho foi identificar as espécies de parasitas em 20 juvenis de Arapaima gigas coletados em uma piscicultura no município de Manacapuru, Amazonas, Brasil e avaliar suas influências na mortalidade dos peixes mediante o uso de índices parasitários, padrão de distribuição e a relação entre o fator de condição e a abundância parasitária. Os peixes antes de morrer apresentaram Revista Brasileira de Zoociências 18(2): 77-90. 2017 ISSN 1517-6770 78. Influência de metazoários parasitas na morte de juvenis de Arapaima gigas Revista Brasileira de Zoociências 18(2): 77-Revista Brasileira de Zoociências 18(2): 77-90. 2017 SANTANA et al.

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Section: Resultsunclassified

Influência de Metazoários Parasitas na Morte de Juvenis de Arapaima gigas (Schinz, 1822) Criados em uma Piscicultura na Amazônia Brasileira

Santana

Morey

Lima

et al. 2017

Revista Brasileira De Zoociências

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“…Parasite species & Fernandes, 1978;Thatcher, 1981;Martins et al, 2005;Saraiva et al, 2006a;Lacerda et al, 2009Lacerda et al, , 2012Hoshino et al, , 2016Tavares-Dias et al, 2014b;Oliveira et al, 2015Oliveira et al, , 2020 Santos et al, 1979Santos et al, , 2008aThatcher, 1981;Araújo et al, 2009;Santos & Moravec, 2009a;Menezes et al, 2011;Silva et al, 2016Silva et al, , 2017 Goezia sp. The following keywords were used: 'Brazil, Amazon, fish and nematodes'.…”

Section: Parasite Familymentioning

confidence: 99%

Checklist of nematodes parasitizing fish in the Brazilian Amazon

et al. 2021

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“…Ward & Magath, 1917 have zoonotic potential and may cause anisakidosis in humans (Andrade-Porto et al, 2015;Silva et al, 2016;Azevedo et al, 2017). High levels of nematode infections cause severe ulcerative lesions, necrosis in the gastric gland, and inflammatory reactions in the stomach, which can lead to the death of juvenile A. gigas (Menezes et al, 2011;Gaines et al, 2012;Azevedo et al, 2017;Miler et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Parasitism of Arapaima gigas (Schinz, 1822) in fish farms of the state of Amazonas, Brazil

Gama

Porto

Anjos

et al. 2022

Rev. Bras. Parasitol. Vet.

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The objective of this study was to investigate the parasites occurrences and to determine the rates of infestation/parasitic infection in juvenile Arapaima gigas from seven fish farms in the state of Amazonas, relating to the characteristics of these fish farms. Of the 70 A. gigas evaluated, 43 were infested/infected, with a total of 133 parasites collected. Three fish farms (2, 4, 6) showed the highest levels of prevalence of parasites (100%, 70%, 70%), mean intensity (4.1±2.6, 8.1±9.2, and 2.1±1.3), and mean abundance (4.1±2.6, 5.7±8.1, and 1.5±1.5), respectively. Prevalence ranged from 30% to 100%, mean intensity from 1.0 to 8.1 and mean abundance from 0.3 to 5.7. Monogenea, Digenea, Nematoda (Hysterothylacium sp. and Spirocamallanus sp.) and Acanthocephala (Neoechinorhynchus sp. and Polyacanthorhynchus sp.) were identified. The parasites Hysterothylacium sp. and Neoechinorhynchus sp. were the most prevalent parasites with 31.43% and 15.71%, respectively. The fish presented negative allometry in growth and constant condition factor. Measures to prevent and control the parasitic diseases diagnosed are discussed as well prophylactic practices that contribute to the biosecurity of the farms.

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Tissue alterations in the pirarucu, Arapaima gigas, infected by Goezia spinulosa (Nematoda)

Cited by 10 publications

References 5 publications

Influência de Metazoários Parasitas na Morte de Juvenis de Arapaima gigas (Schinz, 1822) Criados em uma Piscicultura na Amazônia Brasileira

Influência de Metazoários Parasitas na Morte de Juvenis de Arapaima gigas (Schinz, 1822) Criados em uma Piscicultura na Amazônia Brasileira

Checklist of nematodes parasitizing fish in the Brazilian Amazon

Parasitism of Arapaima gigas (Schinz, 1822) in fish farms of the state of Amazonas, Brazil

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