Artigo

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...

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Autor principal: Amaral, Rodrigo S.
Outros Autores: Madeira Lucci, Carolina, Weber Rosas, Fernando Cesar, Silva, Vera Maria Ferreira da, Báo, Sônia N.
Grau: Artigo
Idioma: English
Publicado em: Zoologia 2020
Assuntos:
Sirenia
Trichechidae
Trichechus Inunguis
Acesso em linha: https://repositorio.inpa.gov.br/handle/1/15284
id oai:repositorio:1-15284
recordtype dspace
spelling oai:repositorio:1-15284 Morphology, morphometry and ultrastructure of the Amazonian manatee (Sirenia: Trichechidae) spermatozoa Amaral, Rodrigo S. Madeira Lucci, Carolina Weber Rosas, Fernando Cesar Silva, Vera Maria Ferreira da Báo, Sônia N. Sirenia Trichechidae Trichechus Inunguis 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. © 2010 Sociedade Brasileira de Zoologia. All rights reserved. 2020-05-07T14:22:49Z 2020-05-07T14:22:49Z 2010 Artigo https://repositorio.inpa.gov.br/handle/1/15284 10.1590/S1984-46702010000600025 en Volume 27, Número 6, Pags. 1014-1017 Attribution-NonCommercial-NoDerivs 3.0 Brazil http://creativecommons.org/licenses/by-nc-nd/3.0/br/ application/pdf Zoologia
institution Instituto Nacional de Pesquisas da Amazônia - Repositório Institucional
collection INPA-RI
language English
topic Sirenia
Trichechidae
Trichechus Inunguis
spellingShingle Sirenia
Trichechidae
Trichechus Inunguis
Amaral, Rodrigo S.
Morphology, morphometry and ultrastructure of the Amazonian manatee (Sirenia: Trichechidae) spermatozoa
topic_facet Sirenia
Trichechidae
Trichechus Inunguis
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. © 2010 Sociedade Brasileira de Zoologia. All rights reserved.
format Artigo
author Amaral, Rodrigo S.
author2 Madeira Lucci, Carolina
Weber Rosas, Fernando Cesar
Silva, Vera Maria Ferreira da
Báo, Sônia N.
author2Str Madeira Lucci, Carolina
Weber Rosas, Fernando Cesar
Silva, Vera Maria Ferreira da
Báo, Sônia N.
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 Zoologia
publishDate 2020
url https://repositorio.inpa.gov.br/handle/1/15284
_version_ 1787143171823632384
score 11.755432

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