Volume 49, No. 2

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Kidney lesions related to trematode infestation in a Cabot's Tern Thalasseus acuflavidus found in Brazil


1MRCVS, 23 Wyvern Road, Ipswich, Suffolk IP3 9TJ, Great Britain
2Laboratório de morfologia e patologia animal (LMPA) - Setor de anatomia patológica -Universidade Estadual do Norte Fluminense Darcy Ribeiro - UENF, Campos dos Goytacazes, Rio de Janeiro, 28013-602, Brazil
3BW Institute, Rua Sueli Brasil Flores 88 Praia Seca, Araruama, Rio de Janeiro 28970-000, Brazil


CARDOSO, R., JERDY, H., BALDASSIN, P., CARVALHO, E.C.Q. & WERNECK, M.R. 2021. Kidney lesions related to trematode infestation in a Cabot's Tern Thalasseus acuflavidus found in Brazil. Marine Ornithology 49: 179 - 181

Received 26 November 2019, accepted 21 January 2021

Date Published: 2021/10/15
Date Online: 2021/10/15
Key words: Brazil, Cabot's tern, kidney lesions, Renicola sp., Thalasseus acuflavidus, Trematoda


We describe the occurrence of the trematode Renicola sp. associated with kidney lesions in a Cabot's Tern Thalasseus acuflavidus from Brazil. During necropsy, we observed renal paleness, subpleural hemorrhage at the edges of the organ, and severe dilation of both ureters. Histological analysis revealed distension of the branches of the ureters, with partial obstruction due to the presence of the parasites and compression of adjacent tubules. The infection did not likely cause the tern's death.


EFE, M.A. & BONATTO, S.L. 2011. Evaluation of the status of conservation of the Cabot's Tern (Thalasseus acuflavidus) in Brazil. Revista Brasileira de Ornitologia 19: 358-363.

EFE, M.A., TAVARES, E.S., BAKER, A.J. & BONATTO, S. L. 2009. Multigene phylogeny and DNA barcoding indicate that the Sandwich tern complex (Thalasseus sandvicensis, Laridae, Sternini) comprises two species. Molecular Phylogenetics and Evolution 52: 263-267.

FERNANDES, B.M.M., JUSTO, M.C.N., CÁRDENAS, M.Q., COHEN, S.C. 2015. South American Trematodes parasites of birds and mammals. Rio de Janeiro, Brazil: Oficina de Livros.

FRACASSO, H.A.A., BRANCO, J.O. & BARBIERI, E. 2011. Reproductive biology of Cabot's Terns on Cardos Island, Santa Catarina, Brazil. Biota Neotropica 11: 75-81. doi:10.1590/S1676-06032011000300005

GIBSON, D.I. 2008. Family Renicolidae. In: R.A. BRAY, R.A., GIBSON, D.I., JONES, A. (Eds.) Keys to the Trematoda. Vol. 3. London, UK: CABI Publishing.

JACOBSON, E.R., RAPHAEL, B.L., NGUYEN, H.T., GREINER, E.C. & GROSS, T. 1980. Avian pox infection, aspergillosis and renal trematodiasis in a Royal Tern. Journal of Wildlife Diseases 16: 627-631. doi:10.7589/0090-3558-16.4.627

JERDY, H., BALDASSIN, P., WERNECK, M.R., BIANCHI, M., BITTENCOURT, R.R. & CARVALHO, E.C. 2016. First report of kidney lesions due to Renicola sp. (Digenea: Trematoda) in free living Magellanic penguins (Spheniscus magellanicus Forster, 1781) found on the coast of Brazil. Journal of Parasitology 102: 650-652. doi:10.1645/16-29

MATOS, A.M.R.N., LAVORENTE, F.L.P., LORENZETTI, E., ET AL. 2019. Molecular identification and histological aspects of Renicola sloanei (Digenea: Renicolidae) in Puffinus puffinus (Procellariiformes): a first record. Brazilian Journal of Veterinary Parasitology. 28: 367-375. doi:10.1590/s1984-29612019025

PINTO, H.A. & MELO. A.L. 2012. Melanoides tuberculata (Mollusca: Thiaridae) harboring renicollid cercariae (Trematoda: Renicolidae) in Brazil. Journal of Parasitology 98: 784-787. doi:10.1645/GE-2937.1

TEIXEIRA DE FREITAS, J.F. 1955. Sobre dois trematódeos parasitos de aves: Philophthalmum lachrymosus Braun, 1902 e Renicola mirandaribeiroi n. sp. Arquivos do Museu Nacional Rio de Janeiro 42: 585-610.

WRIGHT, C. A. 1954. Trematodes of the genus Renicola from the kidneys of birds in Brazil. Revista Brasileira de Biologia 14: 61-64.

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