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Issue: Vol. 5244 No. 1: 16 Feb. 2023
Type: Article
Published: 2023-02-16
DOI: 10.11646/zootaxa.5244.1.6
Page range: 71-81
Abstract views: 271
PDF downloaded: 36

Review of Admirandus Belogurov & Belogurova, 1979 (Nematoda, Oncholaimidae) with the description of a new species and the first record of the genus from Brazil

Departamento de Oceanografia, Laboratório de Bentos (LABEN), Universidade Federal de Pernambuco—Av. Prof. Moraes Rego, 1235—Cidade Universitária, Recife—PE, 50670-901 Pernambuco, PE, Brazil
Departamento de Biologia, Laboratório de Estudos meiofaunísticos e socioambientais (LEMS), Universidade Federal Rural de Pernambuco (UFRPE)—Rua Dom Manuel de Medeiros, s/n—Dois Irmãos, Recife—PE, 52171-900 Pernambuco, Brazil
Departamento de Oceanografia, Laboratório de Bentos (LABEN), Universidade Federal de Pernambuco—Av. Prof. Moraes Rego, 1235—Cidade Universitária, Recife—PE, 50670-901 Pernambuco, PE, Brazil. The Marine Biological Association of the UK, Plymouth PL1 2PB, UK.
tropical estuary mangrove taxonomy demanian system Nematoda

Abstract

The present study provides a description of a new Admirandus species from northeastern Brazil, together with an updated species identification key. Admirandus capibaribei sp. n. can be distinguished from all the other Admirandus species by its physical dimensions (body length, a, stoma and spicule ratios), sexual dimorphism of the tail, the absence of pre-cloacal supplements, and the presence of a row of denticles at the base of the right ventrosublateral tooth. While Admirandus has been reported from temperate, subtropical and tropical environments around the world, this is the first record of the genus from Brazil. Further research on Admirandus and other Adoncholaiminae species, which include the integration of morphological and molecular approaches, will be important to provide a better understanding of the taxonomy of this group, as well as on its demanian system.

References

  1. Barcellos, R.L., Figueira, R.C.L., França, E.J., Schettini, C.A. & Xavier, D.A. (2017) Changes of Estuarine Sedimentation Patterns by Urban Expansion: The Case of Middle Capibaribe Estuary, Northeastern Brazil. International Journal of Geosciences, 8, 514–535. https://doi.org/10.4236/ijg.2017.84027

  2. Blaxter, M.L. (2004) The promise of a DNA taxonomy. Philosophical Transactions of the Royal Society of London, Series B: Biological Sciences, 359, 669–679.

  3. Belogurov, O.I. & Belogurova, L.S. (1979) Morphology of three species of marine nematodes of the genus Adoncholaimus Filipjev, 1918 and validation of Admirandus multicavus gen. et sp. n. (Nematoda, Oncholaimidae). In: Free-living and parasitic worms. Far-eastern University, Vladivostok, pp. 37–63.

  4. Bhadury, P., Austen, M.C., Bilton, D.T., Lambshead, P.J.D., Rogers, A.D. & Smerdon, G.R. (2006) Development and evaluation of a DNA-barcoding approach for the rapid identification of nematodes. Marine Ecology Progress Series, 320, 1–9.

  5. Blouin, M.S. (2002) Molecular prospecting for cryptic species of nematodes: mitochondrial DNA versus internal transcribed spacer. International Journal for Parasitology, 32, 527–531.

  6. Boisseau, J.P. (1957) Technique pour l’étude quantitative de la faune interstitielle des sables. Comptes rendus du Congrès des sociétés savantes de Paris et des départements, Section des sciences, 1957, 117–119.

  7. De Coninck, L.A. (1965) Classe des Nématodes—Systématique des Nématodes et sous-classe des Adenophorea. In: Grassé, P. (Ed.), Traité de Zoologie (éd.GRASSE), 4 (2), pp. 586–681.

  8. De Grisse, A.T. (1969) Redescription ou modifications de quelques techniques utilisées dans l’étude de nématodes phytoparasitaires. Mededelingen Faculteit Landbouwwetenschappen Rijksuniversiteit Gent, 34, 351–369.

  9. De Ley, P., De Ley, I.T., Morris, K., Abebe, E., Mundo-Ocampo, M., Yoder, M., Heras, J., Waumann, D., Rocha- Olivares, A., Burr, A.H.J., Baldwin, J.G. & Thomas, W.K. (2005) An integrated approach to fast and informative morphological vouchering of nematodes for applications in molecular barcoding. Philosophical Transactions of the Royal Society of London, Series B: Biological Sciences, 360, 1945–1958.

  10. De Ley, I.T., Mundo-Ocampo, M., Yoder, M. & De Ley, P. (2007) Nematodes from vernal pools in the Santa Rosa Plateau Ecological Reserve, California. I. Hirschmanniella santarosae sp n. (Nematoda: Pratylenchidae), a cryptic sibling species of H. pomponiensis Abdel-Rahman & Maggenti, 1987. Nematology, 9, 405–429.

  11. de Man, J.G. (1880) Die einheimischen, frei in ter reinen Erde und im süβen Wasser levende Nematoden monographisch bearbeitet. Voläufiger Bericht und descriptive—systematischer Theil. Tijdschrift der Nederlandische Dierkundige Vereeniging, 5, 1–104.

  12. Derycke, S., Remerie, T., Vierstraete, A., Backeljau, T., Vanfleteren, J., Vincx, M. & Moens, T. (2005) Mitochondrial DNA variation and cryptic speciation within the free-living marine nematode Pellioditis marina. Marine Ecology Progress Series, 300, 91–103.

  13. Derycke, S., Backeljau, T., Vlaeminck, C., Vierstraete, A., Vanfleteren, J., Vincx, M. & Moens, T. (2007) Spatiotemporal analysis of population genetic structure in Geomonhystera disjuncta (Nematoda, Monhysteridae) reveals high levels of molecular diversity. Marine Biology, 151, 1799–1812.

  14. Derycke, S., Remerie, T., Backeljau, T., Vierstraete, A., Vanfleteren, J., Vincx, M. & Moens, T. (2008) Phylogeography of the Rhabditis (Pellioditis) marina species complex: evidence for long-distance dispersal, and for range expansions and restricted gene flow in the northeast Atlantic. Molecular Ecology, 17, 3306–3322.

  15. Derycke, S., De Ley, P., De Ley, I.T., Holovachov, O., Rigaux, A. & Moens, T. (2010) Linking DNA sequences to morphology: cryptic diversity and population genetic structure in the marine nematode Thoracostoma trachygaster (Nematoda, Leptosomatidae). Zoologica Scripta, 39 (3), 276–289. https://doi.org/10.1111/j.1463– 6409.2009.00420.x

  16. Filipjev, I.N. (1916) Free living nematodes in the collection of the Zoological Museum of the Imperial Academy of Sciences in Petrograd. Ezhegodnik zoologicheskiy Muzey, Petrograd, 21, 59—116.

  17. Filipjev, I.N. (1918) Free-living marine nematodes of the Sevastopol area. Transactions of the Zoological Laboratory and the Sevastopol Biological Station of the Russian Academy of Sciences. Series II No 4 (Issue I & II) (Translated from Russian).

  18. Fonseca, G.; & Fehlauer-Ale, K.H. (2012) Three in one: fixing marine nematodes for ecological, molecular, and morphological studies. Limnology and Oceanography: Methods, 10, 516–523.

  19. Gerlach, S.A. & Riemann, F. (1974) The Bremerhaven Checklist of Aquatic Nematodes. Veröffentlichungen des Instituts für Meeresforschung in Bremerhaven, Supplement 4, Heft 2, 404–735.

  20. Hodda, M. (2022) Phylum Nematoda: a classification, catalogue and index of valid genera, with a census of valid species. Zootaxa, 5114 (1), 001–289. https://doi.org/10.11646/zootaxa.5114.1.1

  21. Hopper, B.E. (1967) Free-living marine nematodes from Biscayne Bay, Florida. II. Oncholaimidae: descriptions of five new species and one new genus (Meyersia). Marine Biology, 1, 145–151.

  22. Kreis, H.A. (1932) Freilebende marine Nematoden von den Sunda-Inseln II. Oncholaiminae. (Papers from Dr.Th. Mortensen’s Pacific Expedition 1914-16 61). Videnskabelige Meddelelser fra Dansk Naturhistoriske Forening, 93, 23–69

  23. Lo Russo, V., Villares, G. & Pastor de Ward, C.T. (2016) New species of Chaetonema (Nematoda, Anoplostomatidae) and Admirandus (Nematoda, Oncholaimidae) from Patagonia, Río Negro and Santa Cruz, Argentina. Journal of the Marine Biological Association of the United Kingdom, 96 (08), 1661–1669. http://doi.org/10.1017/S0025315415002039

  24. Mordukhovich, V., Atopkin, D., Fadeeva, N., Yagodina, V. & Zograf, J. (2015) Admirandus multicavus and Adoncholaimus ussuriensis sp. n. (Nematoda: Enoplida: Oncholaimidae) from the Sea of Japan. Nematology, 17 (10), 1229–1244.

  25. Nemys (Eds.) (2022) Nemys: World Database of Nematodes. Available from: https://nemys.ugent.be (accessed 27 May 2022) https://doi.org/10.14284/366

  26. Neres, P.F., da Silva, M.C., Miranda-Júnior, G.V., Fonsêca-Genevois, V. & Esteves, A.M. (2014) Five new species of Oncholaimellus (Oncholaimidae: Nematoda) from north-east Brazil, with an emended diagnosis and an updated key to the genus. Journal of the Marine Biological Association of the United Kingdom, 94 (4), 703–727. https://doi.org/10.1017/S0025315414000113

  27. Oliveira, T.S., Barcellos, R.L., Schettini, C.A.F. & Camargo, P.B. (2014) Processo sedimentar atual e distribuição da matéria orgânica e um complexo estuarino tropical, Recife, PE, Brasil. Revista de gestão costeira integrada, 14, 399–411. https://doi.org/10.5894/rgci470

  28. Pinto, T.K., Austen, M.C., Warwick, R.M., Somerfield, P.J., Esteves, A.M., Castro, F.J., Fonseca-Genevois, V.G. & Santos, P.J. (2013) Nematode diversity in different microhabitats in a mangrove region. Marine Ecology, 34, 257–268. https://doi.org/10.1111/maec.12011

  29. Rachor, E. (1969) Das de Mansche Organ der Oncholaimidae, eine genito-intestinale Verbindung bei Nematoden. Zeitschrift für Morphologie der Tiere, 66, 87—166.

  30. Resende, J.S.S., Craveiro, N. & Pereira, R. (2016) Análise Granulométrica e do Teor de Matéria Orgânica em Sedimentos do Estuário do Rio Capibaribe—PE. Estudos Geológicos, 26 (2), 34–45.

  31. Shimada, D. (2016) Checklist of the subfamily Adoncholaiminae Gerlach and Riemann, 1974 (Nematoda: Oncholaimida: Oncholaimidae) of the world: genera, species, distribution, and reference list for taxonomists and ecologists. Biodiversity Data Journal, 4, e6577. https://doi.org/10.3897/BDJ.4.e6577

  32. Shimada, D. & Kajihara, H. (2014) Two new species of free-living marine nematodes of Adoncholaimus Filipjev, 1918 (Oncholaimida: Oncholaimidae: Adoncholaiminae) from Hokkaido, northern Japan, with a key to species and discussion of the genus. Nematology, 16 (4), 437–451. https://doi.org/10.1163/15685411-00002776

  33. Smol, N. & Coomans, A. (2006) Order Enoplida. In: Abebe, E., Andrássy, I. & Traunspurger, W. (Eds.), Freshwater nematodes: ecology and taxonomy. CABI Publishing, Wallingford, pp. 225–250.

  34. Smol, N., Muthumbi, A. & Sharma, J. (2014) Order Enoplida. In: Andreas, S.R. (Ed.), Handbook of Zoology. Gastrotricha, Cycloneuralia, and Gnathifera. Vol. 2. Nematoda. Walter de Gruyter, Berlin, pp. 193–250.

  35. Tchesunov, A.V., Mokievsky, V.O. & Thanh, N.V. (2010) Three new free-living nematode species (Nematoda, Enoplida) from mangrove habits of Nha Trang, Central Vietnam. Russian Journal of Nematology, 18 (2), 155–173.

  36. Venekey, V., Fonseca-Genevois, V.G. & Santos, P.J.P. (2010) Biodiversity of free-living marine nematodes on the coast of Brazil: a review. Zootaxa, 2568, 39–66. https://doi.org/ 10.11646/zootaxa.2568.1.2

  37. Venekey, V. (2017) Updates on information about free-living marine nematodes in Brazil: new records and comments on problems in taxonomic studies. Zootaxa, 4337 (1), 38–72. https://doi.org/10.11646/zootaxa.4337.1.2.

  38. Vovlas, N., Subbotin, S.A., Troccoli, A., Liebanas, G. & Castillo, P. (2008) Molecular phylogeny of the genus Rotylenchus (Nematoda, Tylenchida) and description of a new species. Zoologica Scripta, 37, 521–537.

  39. Yushin, V.V. & Gliznutsa, L.A. (2021) Spermatozoa in the Demanian system of freeliving marine nematode Admirandus multicavus (Enoplida: Oncholaimidae). Invertebrate Zoology, 18 (3), 369–383. https://doi.org/10.15298/invertzool.18.3.10

  40. Zanardi-Lamardo, E., Nóbrega, A.S.C., Santos, R.H.A. & Maciel, D.C. (2016) Fontes e níveis de contaminação do Sistema Estuarino do Rio Capibaribe (Pernambuco/Brasil). Tropical Oceanography, 44 (2), 118–131. https://doi.org/10.5914/tropocean.v44i2.8296