Morphology, morphometry and ultrastructure of the Amazonian manatee (Sirenia: Trichechidae) spermatozoa
This study describes the morphological, morphometric and ultrastructural characteristics of the Amazonian manatee Trichechus inunguis (Natterer, 1883) spermatozoon. The spermatozoa were obtained from a urine sample of an adult T. inunguis kept in captivity. The spermatozoa were analyzed by light and...
| Main Authors: | Amaral, Rodrigo de Souza, Lucci, Carolina Madeira, Rosas, Fernando C. W., Silva, Vera M. F. da, Báo, Sônia Nair |
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Sociedade Brasileira de Zoologia
2017
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http://repositorio.unb.br/handle/10482/27922 https://dx.doi.org/10.1590/S1984-46702010000600025 |
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ir-10482-279222021-02-26T14:56:58Z Morphology, morphometry and ultrastructure of the Amazonian manatee (Sirenia: Trichechidae) spermatozoa Amaral, Rodrigo de Souza Lucci, Carolina Madeira Rosas, Fernando C. W. Silva, Vera M. F. da Báo, Sônia Nair Morfologia (Animais) Reprodução animal Sirênios Espermatozóides Peixe-boi This study describes the morphological, morphometric and ultrastructural characteristics of the Amazonian manatee Trichechus inunguis (Natterer, 1883) spermatozoon. The spermatozoa were obtained from a urine sample of an adult T. inunguis kept in captivity. The spermatozoa were analyzed by light and transmission electron microscopy. The head of Amazonian manatee spermatozoa had a flat oval shape and a well distinguishable midpiece. The mean dimensions of the spermatozoa were: head length, 7.49 ± 0.24 µm; head width, 3.53 ± 0.19 µm; head thickness, 1.61 ± 0.13 µm; midpiece length, 11.36 ± 0.34 µm; flagellum length, 40.91 ± 1.94 µm; total tail length, 52.16 ± 1.06 µm; total spermatozoon length, 60.08 ± 1.40 µm. The Amazonian manatee spermatozoa were similar in shape to other sirenian spermatozoa; however, presenting a different size. This study describes, for the first time, the morphometric and ultrastructural characteristics of the Amazonian manatee spermatozoa, and also demonstrates the possible use of spermatozoa retrieved from urine samples for biological studies. 2017-12-07T04:55:43Z 2017-12-07T04:55:43Z 2010 Artigo AMARAL, Rodrigo S. et al. Morphology, morphometry and ultrastructure of the Amazonian manatee (Sirenia: Trichechidae) spermatozoa. Zoologia (Curitiba), Curitiba, v. 27, n. 6, p. 1014-1017, 2010. DOI: http://dx.doi.org/10.1590/S1984-46702010000600025. Disponível em: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702010000600025&lng=en&nrm=iso. Acesso em: 12 jan. 2021. http://repositorio.unb.br/handle/10482/27922 https://dx.doi.org/10.1590/S1984-46702010000600025 en Acesso Aberto Zoologia (Curitiba) - All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License (CC BY NC 4.0). Fonte: https://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702010000600025&lng=en&nrm=iso&tlng=en. Acesso em: 12 jan. 2021. application/pdf Sociedade Brasileira de Zoologia |
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Morfologia (Animais) Reprodução animal Sirênios Espermatozóides Peixe-boi |
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Morfologia (Animais) Reprodução animal Sirênios Espermatozóides Peixe-boi Amaral, Rodrigo de Souza Lucci, Carolina Madeira Rosas, Fernando C. W. Silva, Vera M. F. da Báo, Sônia Nair Morphology, morphometry and ultrastructure of the Amazonian manatee (Sirenia: Trichechidae) spermatozoa |
| description |
This study describes the morphological, morphometric and ultrastructural characteristics of the Amazonian manatee Trichechus inunguis (Natterer, 1883) spermatozoon. The spermatozoa were obtained from a urine sample of an adult T. inunguis kept in captivity. The spermatozoa were analyzed by light and transmission electron microscopy. The head of Amazonian manatee spermatozoa had a flat oval shape and a well distinguishable midpiece. The mean dimensions of the spermatozoa were: head length, 7.49 ± 0.24 µm; head width, 3.53 ± 0.19 µm; head thickness, 1.61 ± 0.13 µm; midpiece length, 11.36 ± 0.34 µm; flagellum length, 40.91 ± 1.94 µm; total tail length, 52.16 ± 1.06 µm; total spermatozoon length, 60.08 ± 1.40 µm. The Amazonian manatee spermatozoa were similar in shape to other sirenian spermatozoa; however, presenting a different size. This study describes, for the first time, the morphometric and ultrastructural characteristics of the Amazonian manatee spermatozoa, and also demonstrates the possible use of spermatozoa retrieved from urine samples for biological studies. |
| format |
Artigo |
| author |
Amaral, Rodrigo de Souza Lucci, Carolina Madeira Rosas, Fernando C. W. Silva, Vera M. F. da Báo, Sônia Nair |
| author_sort |
Amaral, Rodrigo de Souza |
| title |
Morphology, morphometry and ultrastructure of the Amazonian manatee (Sirenia: Trichechidae) spermatozoa |
| title_short |
Morphology, morphometry and ultrastructure of the Amazonian manatee (Sirenia: Trichechidae) spermatozoa |
| title_full |
Morphology, morphometry and ultrastructure of the Amazonian manatee (Sirenia: Trichechidae) spermatozoa |
| title_fullStr |
Morphology, morphometry and ultrastructure of the Amazonian manatee (Sirenia: Trichechidae) spermatozoa |
| title_full_unstemmed |
Morphology, morphometry and ultrastructure of the Amazonian manatee (Sirenia: Trichechidae) spermatozoa |
| title_sort |
morphology, morphometry and ultrastructure of the amazonian manatee (sirenia: trichechidae) spermatozoa |
| publisher |
Sociedade Brasileira de Zoologia |
| publishDate |
2017 |
| url |
http://repositorio.unb.br/handle/10482/27922 https://dx.doi.org/10.1590/S1984-46702010000600025 |
| _version_ |
1693127006534762496 |
| score |
13.657419 |