Sperm ultrastructure in three different families of weakly electric fishes (Teleostei: Gymnotiformes)
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Neotropical ichthyology (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252011000400019 |
Resumo: | This study presents details of sperm ultrastructure for Gymnotus aff. carapo (Gymnotidae), Eigenmannia trilineata (Sternopygidae), and three Brachyhypopomus species (B. draco, B. bombilla, and B. gauderio - Hypopomidae) from southern Brazil. Differences were found among the representatives of the different families. For example, nuclear rotation was present in E. trilineata and in the Brachyhypopomus species, but absent in Gymnotus aff. carapo, and the presence of flagellar fins was only observed in E. trilineata. Some intraspecific variations could also be noticed among the Brachyhypopomus species analyzed. Most of the characters found in the spermatozoa of the species studied herein are shared with species of Gymnotiformes previously analyzed. |
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Neotropical ichthyology (Online) |
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Sperm ultrastructure in three different families of weakly electric fishes (Teleostei: Gymnotiformes)GymnotidaeHypopomidaeSpermatozoaSternopygidaeThis study presents details of sperm ultrastructure for Gymnotus aff. carapo (Gymnotidae), Eigenmannia trilineata (Sternopygidae), and three Brachyhypopomus species (B. draco, B. bombilla, and B. gauderio - Hypopomidae) from southern Brazil. Differences were found among the representatives of the different families. For example, nuclear rotation was present in E. trilineata and in the Brachyhypopomus species, but absent in Gymnotus aff. carapo, and the presence of flagellar fins was only observed in E. trilineata. Some intraspecific variations could also be noticed among the Brachyhypopomus species analyzed. Most of the characters found in the spermatozoa of the species studied herein are shared with species of Gymnotiformes previously analyzed.Sociedade Brasileira de Ictiologia2011-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252011000400019Neotropical Ichthyology v.9 n.4 2011reponame:Neotropical ichthyology (Online)instname:Sociedade Brasileira de Ictiologia (SBI)instacron:SBI10.1590/S1679-62252011005000047info:eu-repo/semantics/openAccessGiora,JúliaBurns,John R.eng2012-01-17T00:00:00Zoai:scielo:S1679-62252011000400019Revistahttp://www.ufrgs.br/ni/https://old.scielo.br/oai/scielo-oai.php||neoichth@nupelia.uem.br1982-02241679-6225opendoar:2012-01-17T00:00Neotropical ichthyology (Online) - Sociedade Brasileira de Ictiologia (SBI)false |
dc.title.none.fl_str_mv |
Sperm ultrastructure in three different families of weakly electric fishes (Teleostei: Gymnotiformes) |
title |
Sperm ultrastructure in three different families of weakly electric fishes (Teleostei: Gymnotiformes) |
spellingShingle |
Sperm ultrastructure in three different families of weakly electric fishes (Teleostei: Gymnotiformes) Giora,Júlia Gymnotidae Hypopomidae Spermatozoa Sternopygidae |
title_short |
Sperm ultrastructure in three different families of weakly electric fishes (Teleostei: Gymnotiformes) |
title_full |
Sperm ultrastructure in three different families of weakly electric fishes (Teleostei: Gymnotiformes) |
title_fullStr |
Sperm ultrastructure in three different families of weakly electric fishes (Teleostei: Gymnotiformes) |
title_full_unstemmed |
Sperm ultrastructure in three different families of weakly electric fishes (Teleostei: Gymnotiformes) |
title_sort |
Sperm ultrastructure in three different families of weakly electric fishes (Teleostei: Gymnotiformes) |
author |
Giora,Júlia |
author_facet |
Giora,Júlia Burns,John R. |
author_role |
author |
author2 |
Burns,John R. |
author2_role |
author |
dc.contributor.author.fl_str_mv |
Giora,Júlia Burns,John R. |
dc.subject.por.fl_str_mv |
Gymnotidae Hypopomidae Spermatozoa Sternopygidae |
topic |
Gymnotidae Hypopomidae Spermatozoa Sternopygidae |
description |
This study presents details of sperm ultrastructure for Gymnotus aff. carapo (Gymnotidae), Eigenmannia trilineata (Sternopygidae), and three Brachyhypopomus species (B. draco, B. bombilla, and B. gauderio - Hypopomidae) from southern Brazil. Differences were found among the representatives of the different families. For example, nuclear rotation was present in E. trilineata and in the Brachyhypopomus species, but absent in Gymnotus aff. carapo, and the presence of flagellar fins was only observed in E. trilineata. Some intraspecific variations could also be noticed among the Brachyhypopomus species analyzed. Most of the characters found in the spermatozoa of the species studied herein are shared with species of Gymnotiformes previously analyzed. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-01-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252011000400019 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252011000400019 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S1679-62252011005000047 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Sociedade Brasileira de Ictiologia |
publisher.none.fl_str_mv |
Sociedade Brasileira de Ictiologia |
dc.source.none.fl_str_mv |
Neotropical Ichthyology v.9 n.4 2011 reponame:Neotropical ichthyology (Online) instname:Sociedade Brasileira de Ictiologia (SBI) instacron:SBI |
instname_str |
Sociedade Brasileira de Ictiologia (SBI) |
instacron_str |
SBI |
institution |
SBI |
reponame_str |
Neotropical ichthyology (Online) |
collection |
Neotropical ichthyology (Online) |
repository.name.fl_str_mv |
Neotropical ichthyology (Online) - Sociedade Brasileira de Ictiologia (SBI) |
repository.mail.fl_str_mv |
||neoichth@nupelia.uem.br |
_version_ |
1752122180068442112 |