Hostname: page-component-7bb8b95d7b-lvwk9 Total loading time: 0 Render date: 2024-09-18T04:14:15.113Z Has data issue: false hasContentIssue false
  • English
  • Français

Tissue-dwelling philometrid nematodes of the fish Arapaima gigas in Brazil

Published online by Cambridge University Press:  01 September 2009

C. Portes Santos  and
F. Moravec
C. Portes Santos*
Affiliation:
Laboratório de Avaliação e Promoção da Saúde Ambiental, Instituto Oswaldo Cruz – FIOCRUZ, Av. Brasil 4365, 21045-900Rio de Janeiro, RJ, Brazil
F. Moravec
Affiliation:
Institute of Parasitology, Biology Centre of the Academy of Sciences of the Czech Republic, Branišovská 31, 37005České Budějovice, Czech Republic
*
*Fax: +55-21-25606474 ext. 3 E-mail: [email protected]
Get access Rights & Permissions [Opens in a new window]

Abstract

The nematode Rumai rumai Travassos, 1960 (Philometridae) is redescribed from the tissues of the mouth, tongue, operculum and head of the arapaima, Arapaima gigas (Schinz) (Osteichthyes), from Mexiana Island, Amazon River Delta, Brazil. Additional data on the related Nilonema senticosum (Baylis, 1922) from the same host and locality are also presented. Rumai rumai is characterized by the presence of a sclerotized formation on the female cephalic end, dorsal and ventral cephalic projections, the shape and structure of the oesophagus and a conical caudal extremity. Males of both R. rumai and N. senticosum, specific parasites of the ancient arapaima fish in the Neotropics, remain unknown. The relationship between these tissue-dwelling nematodes and the aquaculture system of Mexiana Island is commented upon.

Type
Research Papers
Information
Journal of Helminthology , Volume 83 , Issue 3 , September 2009 , pp. 295 - 301
Copyright
Copyright © Cambridge University Press 2009

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Chabaud, A.G. (1975) Keys to Genera of the Order Spirurida. Part 1. Camallanoidea, Dracunculoidea, Gnathostomatoidea, Physalopteroidea, Rictularoidea and Thelazioidea. In Anderson, R.C., Chabaud, A.G. & Willmott, S. (Eds) CIH Keys to the Nematode Parasites of Vertebrates. No. 3. 27 pp. Farnham Royal, Commonwealth Agricultural Bureaux.Google Scholar
Froese, R. & Pauly, D. (2008) FishBase. World Wide Web electronic publication,www.fishbase.org, version 4/2008.Google Scholar
Ivashkin, V.M., Sobolev, A.A. & Khromova, L.A. (1971) Camallanata of animals and man and the diseases caused by them. Essentials of Nematology 22. 388 pp. Moscow, Nauka (in Russian).Google Scholar
Moravec, F. (1998) Nematodes of freshwater fishes of the neotropical region. 464 pp. Prague, Academia.Google Scholar
Moravec, F. (2006) Dracunculoid and Anguillicoloid nematodes parasitic in vertebrates. 634 pp. Prague, Academia.Google Scholar
Moravec, F., Scholz, T., Kuchta, R., Dyková, I. & Posel, P. (2006) New data on the morphology of Nilonema senticosum (Nematoda, Philometridae), a parasite of Arapaima gigas (Pisces), with notes on another philometrid Alinema amazonicum in Peru. Acta Parasitologica 51, 279–285.CrossRefGoogle Scholar
Rasheed, S. (1963) A revision of the genus Philometra Costa, 1845. Journal of Helminthology 37, 89–130.CrossRefGoogle ScholarPubMed
Santos, C.P. & Gibson, D.I. (2007) Nilonema gymnarchi Khalil, 1960 and N. senticosum (Baylis, 1922) (Nematoda: Dracunculoidea): Gondwana relicts? Systematic Parasitology 67, 225–234.CrossRefGoogle Scholar
Sokolov, S.G. & Kazakov, B.E. (2007) Redescription of the male of Philometra rischta Skrjabin, 1923 (Nematoda: Dracunculoidea: Philometridae) and notes on morphology of the female of this species. Zoologiya Bespozvonochnykh 4, 151–160(in Russian with English abstract).Google Scholar
Thatcher, V.E. (2006) Amazon fish parasites. 2nd edn.508 pp. Sofia, Pensoft Publishers.Google Scholar
Travassos, L. (1960) Sobre nematódeos cavitários de peixes do Rio Amazonas. Atas da Sociedade de Biologia do Rio de Janeiro 2, 15–20.Google Scholar