Reproductive period and fecundity of Serrapinnus piaba (Characidae: Cheirodontinae) from the rio Ceará Mirim, Rio Grande do Norte, Brazil

Detalhes bibliográficos
Autor(a) principal: Silvano,Jacira
Data de Publicação: 2003
Outros Autores: Oliveira,Cristina L. C., Fialho,Clarice B., Gurgel,Hélio C. B.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Neotropical ichthyology (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252003000100007
Resumo: Specimens of Serrapinnus piaba were collected monthly from April 2001 to April 2002 in the rio Ceará Mirim, Rio Grande do Norte State, Brazil. The reproductive period, determined through the monthly variation of the gonadosomatic index (GSI) and maturation stages, occurred from January to April. Non-parametric Spearman test was performed in order to test correlation of monthly GSI variation in males and females with water temperature, rainfall and day length. Rainfall and Temperature were correlated with GSI variation in females only and day length showed a negative correlation with GSI variation of males only. It was verified the presence of hooks on the anal fin of mature and maturing males along all the period of study. The absolute fecundity mean was 441 (±178.08) oocytes, determined by the number of yolky oocytes counted in 27 mature female gonads. The relative fecundity, estimated by the number of yolky oocytes divided by milligram of total body weight was 0.74 (± 0.19).
id SBI-1_4fc0af04b88bb61d352f9655da51aaf2
oai_identifier_str oai:scielo:S1679-62252003000100007
network_acronym_str SBI-1
network_name_str Neotropical ichthyology (Online)
repository_id_str
spelling Reproductive period and fecundity of Serrapinnus piaba (Characidae: Cheirodontinae) from the rio Ceará Mirim, Rio Grande do Norte, Brazilreproductionfin hooksNeotropicalCheirodontiniSpecimens of Serrapinnus piaba were collected monthly from April 2001 to April 2002 in the rio Ceará Mirim, Rio Grande do Norte State, Brazil. The reproductive period, determined through the monthly variation of the gonadosomatic index (GSI) and maturation stages, occurred from January to April. Non-parametric Spearman test was performed in order to test correlation of monthly GSI variation in males and females with water temperature, rainfall and day length. Rainfall and Temperature were correlated with GSI variation in females only and day length showed a negative correlation with GSI variation of males only. It was verified the presence of hooks on the anal fin of mature and maturing males along all the period of study. The absolute fecundity mean was 441 (±178.08) oocytes, determined by the number of yolky oocytes counted in 27 mature female gonads. The relative fecundity, estimated by the number of yolky oocytes divided by milligram of total body weight was 0.74 (± 0.19).Sociedade Brasileira de Ictiologia2003-09-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252003000100007Neotropical Ichthyology v.1 n.1 2003reponame:Neotropical ichthyology (Online)instname:Sociedade Brasileira de Ictiologia (SBI)instacron:SBI10.1590/S1679-62252003000100007info:eu-repo/semantics/openAccessSilvano,JaciraOliveira,Cristina L. C.Fialho,Clarice B.Gurgel,Hélio C. B.eng2008-01-02T00:00:00Zoai:scielo:S1679-62252003000100007Revistahttp://www.ufrgs.br/ni/https://old.scielo.br/oai/scielo-oai.php||neoichth@nupelia.uem.br1982-02241679-6225opendoar:2008-01-02T00:00Neotropical ichthyology (Online) - Sociedade Brasileira de Ictiologia (SBI)false
dc.title.none.fl_str_mv Reproductive period and fecundity of Serrapinnus piaba (Characidae: Cheirodontinae) from the rio Ceará Mirim, Rio Grande do Norte, Brazil
title Reproductive period and fecundity of Serrapinnus piaba (Characidae: Cheirodontinae) from the rio Ceará Mirim, Rio Grande do Norte, Brazil
spellingShingle Reproductive period and fecundity of Serrapinnus piaba (Characidae: Cheirodontinae) from the rio Ceará Mirim, Rio Grande do Norte, Brazil
Silvano,Jacira
reproduction
fin hooks
Neotropical
Cheirodontini
title_short Reproductive period and fecundity of Serrapinnus piaba (Characidae: Cheirodontinae) from the rio Ceará Mirim, Rio Grande do Norte, Brazil
title_full Reproductive period and fecundity of Serrapinnus piaba (Characidae: Cheirodontinae) from the rio Ceará Mirim, Rio Grande do Norte, Brazil
title_fullStr Reproductive period and fecundity of Serrapinnus piaba (Characidae: Cheirodontinae) from the rio Ceará Mirim, Rio Grande do Norte, Brazil
title_full_unstemmed Reproductive period and fecundity of Serrapinnus piaba (Characidae: Cheirodontinae) from the rio Ceará Mirim, Rio Grande do Norte, Brazil
title_sort Reproductive period and fecundity of Serrapinnus piaba (Characidae: Cheirodontinae) from the rio Ceará Mirim, Rio Grande do Norte, Brazil
author Silvano,Jacira
author_facet Silvano,Jacira
Oliveira,Cristina L. C.
Fialho,Clarice B.
Gurgel,Hélio C. B.
author_role author
author2 Oliveira,Cristina L. C.
Fialho,Clarice B.
Gurgel,Hélio C. B.
author2_role author
author
author
dc.contributor.author.fl_str_mv Silvano,Jacira
Oliveira,Cristina L. C.
Fialho,Clarice B.
Gurgel,Hélio C. B.
dc.subject.por.fl_str_mv reproduction
fin hooks
Neotropical
Cheirodontini
topic reproduction
fin hooks
Neotropical
Cheirodontini
description Specimens of Serrapinnus piaba were collected monthly from April 2001 to April 2002 in the rio Ceará Mirim, Rio Grande do Norte State, Brazil. The reproductive period, determined through the monthly variation of the gonadosomatic index (GSI) and maturation stages, occurred from January to April. Non-parametric Spearman test was performed in order to test correlation of monthly GSI variation in males and females with water temperature, rainfall and day length. Rainfall and Temperature were correlated with GSI variation in females only and day length showed a negative correlation with GSI variation of males only. It was verified the presence of hooks on the anal fin of mature and maturing males along all the period of study. The absolute fecundity mean was 441 (±178.08) oocytes, determined by the number of yolky oocytes counted in 27 mature female gonads. The relative fecundity, estimated by the number of yolky oocytes divided by milligram of total body weight was 0.74 (± 0.19).
publishDate 2003
dc.date.none.fl_str_mv 2003-09-01
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=S1679-62252003000100007
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252003000100007
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1679-62252003000100007
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.1 n.1 2003
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_ 1752122177750040576

Registros relacionados