HEMOPARASITES OF RED PIRANHA Pygocentrus nattereri (KNER, 1858) (CHARACIFORMES: CHARACIDAE) CAPTURED IN RED RIVER, MIDDLE ARAGUAIA RIVER REGION, STATE OF GOIÁS (GO), BRAZIL

Autores

  • Isabela Vieira Carneiro Universidade Federal de Uberlândia http://orcid.org/0000-0002-2088-4056
  • Jéssica Lima de Almeida Universidade Federal de Uberlândia
  • André Luiz Quagliatto Santos

DOI:

https://doi.org/10.14393/VTv22n2a2016.33196

Palavras-chave:

Pygocentrus nattereri, parasitos sanguíneos, células sanguíneas, biometria, fatores abióticos.

Resumo

This work aimed to evaluate blood smears of 128 red piranha specimens Pygocentrus nattereri (Kner, 1858) (Characiformes: Characidae) as for the presence of hemoparasites and blood cells that were visualized. Samples were collected in Rio Vermelho (Red River) (15°10'44.73''S and 51°09'55.83W''), in the Brazilian state of Goiás, between April 2012 and August 2013, including ebb, full and dry phases. After identificating and numbering the piranhas, we collected approximately 0.5 mL of blood from each animal, from the caudal vein or through intracardiac puncture, and two blood smears were done and stained with May Grünwald-Giemsa and Fast Panoptic stains. After euthanasia, the body mass and biometrics of every fish were measured. Abiotic factors of the river water were also analyzed, such as temperature and transparency. In general, the biometric parameters were higher in the full phase of the river, and the values obtained on water quality were similar in relation to the average temperature of the water, which was around 82,4°F. The average transparency of the water varied, being greater at low tide. Erythrocytes, thrombocytes, neutrophils, eosinophils, monocytes, heterophile and lymphocytes were identified as blood cells of red piranhas and hemogregarines have been found in about 25% (32/128) of the blood smears.

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Biografia do Autor

Isabela Vieira Carneiro, Universidade Federal de Uberlândia

Graduanda em Medicina Veterinária, Universidade Federal de Uberlândia e pesquisadora do Laboratório de Ensino e Pesquisa em Animais Selvagens (LAPAS).

Jéssica Lima de Almeida, Universidade Federal de Uberlândia

Médica Veterinária graduada pela Universidade Federal de Uberlândia.

André Luiz Quagliatto Santos

Professor Titular do Curso de Medicina Veterinária, Universidade Federal de Uberlândia 

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Publicado

2016-10-19

Como Citar

Carneiro, I. V., de Almeida, J. L., & Santos, A. L. Q. (2016). HEMOPARASITES OF RED PIRANHA Pygocentrus nattereri (KNER, 1858) (CHARACIFORMES: CHARACIDAE) CAPTURED IN RED RIVER, MIDDLE ARAGUAIA RIVER REGION, STATE OF GOIÁS (GO), BRAZIL. Veterinária Notícias, 22(2). https://doi.org/10.14393/VTv22n2a2016.33196