REPRODUCTIVE BIOLOGY OF THE HALF BEAK, Hemiramphus brasiliensis (LINNAEUS, 1758) (OSTEICHTHYES: HEMIRAMPHIDAE) FROM THE COASTAL WATERS OF RIO GRANDE DO NORTE, BRAZIL

Detalhes bibliográficos
Autor(a) principal: de Oliveira, Isabelle Maria Bezerra
Data de Publicação: 2012
Outros Autores: de Oliveira, Mônica Rocha, Yamamoto, Maria Emília, Chellappa, Sathyabama
Tipo de documento: Artigo
Idioma: por
Título da fonte: Biota Amazônia
Texto Completo: https://periodicos.unifap.br/index.php/biota/article/view/483
Resumo: The half beak, Hemiramphus brasiliensis (Linnaeus, 1758) (Osteichthyes: Hemiramphidae) is a marine pelagic fish encountered in the coastal waters of Rio Grande do Norte, which contributes to the fish production of the State. This study verified the reproductive biology of H. brasiliensis in the littoral waters of Caiçara do Norte, RN. The fish were captured monthly during a period of one year. The fish were measured, weighed, dissected and the gonads were examined to identify the sex and to verify stages of maturation of the gonads. The sex ratio, length at first sexual maturity, macroscopic and microscopic characterization of the development of gonads, the fecundity, the type of spawning and the reproductive period were determined. The gonadosomatic index (GSI) was determined for both sexes. The rainfall data was obtained for the study region. The results indicate that the sex ratio was 1M:1,1F and the average length at first maturity (L50) of females was 20cm and males was 28cm. The mean fecundity was 3100 mature oocytes. The macroscopic studies of the gonads indicated both sexes showed four stages of gonadal development being, immature, maturing, mature and spent. GSI showed two reproductive peaks for H. brasiliensis, the first from January to March and the second from May to July, indicating bimodal reproductive activity. Both peaks coincided with the rainy season of the region. The highest number of fish was caught commercially during their reproductive period.Keywords: marine pelagic fish; sex ratio; development of gonads.
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spelling REPRODUCTIVE BIOLOGY OF THE HALF BEAK, Hemiramphus brasiliensis (LINNAEUS, 1758) (OSTEICHTHYES: HEMIRAMPHIDAE) FROM THE COASTAL WATERS OF RIO GRANDE DO NORTE, BRAZILBIOLOGIA REPRODUTIVA DE AGULHA-PRETA, Hemiramphus brasiliensis (LINNAEUS, 1758) (OSTEICHTHYES: HEMIRAMPHIDAE) DAS ÁGUAS COSTEIRAS DO RIO GRANDE DO NORTE, BRASIL.The half beak, Hemiramphus brasiliensis (Linnaeus, 1758) (Osteichthyes: Hemiramphidae) is a marine pelagic fish encountered in the coastal waters of Rio Grande do Norte, which contributes to the fish production of the State. This study verified the reproductive biology of H. brasiliensis in the littoral waters of Caiçara do Norte, RN. The fish were captured monthly during a period of one year. The fish were measured, weighed, dissected and the gonads were examined to identify the sex and to verify stages of maturation of the gonads. The sex ratio, length at first sexual maturity, macroscopic and microscopic characterization of the development of gonads, the fecundity, the type of spawning and the reproductive period were determined. The gonadosomatic index (GSI) was determined for both sexes. The rainfall data was obtained for the study region. The results indicate that the sex ratio was 1M:1,1F and the average length at first maturity (L50) of females was 20cm and males was 28cm. The mean fecundity was 3100 mature oocytes. The macroscopic studies of the gonads indicated both sexes showed four stages of gonadal development being, immature, maturing, mature and spent. GSI showed two reproductive peaks for H. brasiliensis, the first from January to March and the second from May to July, indicating bimodal reproductive activity. Both peaks coincided with the rainy season of the region. The highest number of fish was caught commercially during their reproductive period.Keywords: marine pelagic fish; sex ratio; development of gonads.Agulha-preta, Hemiramphus brasiliensis (Linnaeus, 1758) (Osteichthyes: Hemiramphidae) é um peixe marinho pelágico encontrado nas águas costeiras do Rio Grande do Norte que contribui para a produção pesqueira do Estado. O presente trabalho determinou a biologia reprodutiva de H. brasiliensis nas águas costeiras de Caiçara do Norte, RN. Os peixes foram capturados mensalmente durante o período de um ano. Os exemplares foram medidos, pesados, dissecados e as gônadas foram pesadas e examinadas para identificar o sexo e avaliar o estádio de maturação gonadal. A proporção sexual, o comprimento médio da primeira maturação, a caracterização macroscópica e microscópica do desenvolvimento das gônadas, a fecundidade, o tipo de desova e o período reprodutivo foram determinados. O índice gonadossomatico (IGS) foi verificado para ambos os sexos. Os dados de pluviosidade foram obtidos para a região estudada. Os resultados indicam que a proporção sexual foi 1M:1,1F e o comprimento médio da primeira maturação (L50) das fêmeas foi  20cm e dos machos foi 28cm. A fecundidade média foi 3100 ovócitos maduros. Os estudos macroscópicos das gônadas indicaram que ambos os sexos apresentaram quatro estádios de desenvolvimento gonadal, sendo imaturo, em maturação, maduro e esvaziado. IGS mostrou dois picos reprodutivos para H. brasiliensis, primeiro entre janeiro a março e segundo entre maio a julho, indicando atividade reprodutiva bimodal. Ambos os picos coincidiram com o período chuvoso da região. O maior número de peixe-agulha foi capturado comercialmente durante sua época reprodutiva.Palavras-chave: peixe marinho pelágico, proporção sexual, desenvolvimento das gônadas.Universidade Federal do Amapáde Oliveira, Isabelle Maria Bezerrade Oliveira, Mônica RochaYamamoto, Maria EmíliaChellappa, Sathyabama2012-12-27info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArtigo Avaliado pelos Paresapplication/pdfhttps://periodicos.unifap.br/index.php/biota/article/view/48310.18561/2179-5746/biotaamazonia.v2n2p44-53Biota Amazônia (Biote Amazonie, Biota Amazonia, Amazonian Biota); v. 2, n. 2 (2012); 44-532179-5746reponame:Biota Amazôniainstname:Universidade Federal do Amapá (UNIFAP)instacron:UNIFAPporhttps://periodicos.unifap.br/index.php/biota/article/view/483/v2n2p44-53.pdfDireitos autorais 2012 Biota Amazônia (Biote Amazonie, Biota Amazonia, Amazonian Biota)http://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccess2016-04-18T19:59:20Zoai:ojs.pkp.sfu.ca:article/483Revistahttp://periodicos.unifap.br/index.php/biotaONGhttps://periodicos.unifap.br/index.php/biota/oai||juliosa@unifap.br2179-57462179-5746opendoar:2016-04-18T19:59:20Biota Amazônia - Universidade Federal do Amapá (UNIFAP)false
dc.title.none.fl_str_mv REPRODUCTIVE BIOLOGY OF THE HALF BEAK, Hemiramphus brasiliensis (LINNAEUS, 1758) (OSTEICHTHYES: HEMIRAMPHIDAE) FROM THE COASTAL WATERS OF RIO GRANDE DO NORTE, BRAZIL
BIOLOGIA REPRODUTIVA DE AGULHA-PRETA, Hemiramphus brasiliensis (LINNAEUS, 1758) (OSTEICHTHYES: HEMIRAMPHIDAE) DAS ÁGUAS COSTEIRAS DO RIO GRANDE DO NORTE, BRASIL.
title REPRODUCTIVE BIOLOGY OF THE HALF BEAK, Hemiramphus brasiliensis (LINNAEUS, 1758) (OSTEICHTHYES: HEMIRAMPHIDAE) FROM THE COASTAL WATERS OF RIO GRANDE DO NORTE, BRAZIL
spellingShingle REPRODUCTIVE BIOLOGY OF THE HALF BEAK, Hemiramphus brasiliensis (LINNAEUS, 1758) (OSTEICHTHYES: HEMIRAMPHIDAE) FROM THE COASTAL WATERS OF RIO GRANDE DO NORTE, BRAZIL
de Oliveira, Isabelle Maria Bezerra
title_short REPRODUCTIVE BIOLOGY OF THE HALF BEAK, Hemiramphus brasiliensis (LINNAEUS, 1758) (OSTEICHTHYES: HEMIRAMPHIDAE) FROM THE COASTAL WATERS OF RIO GRANDE DO NORTE, BRAZIL
title_full REPRODUCTIVE BIOLOGY OF THE HALF BEAK, Hemiramphus brasiliensis (LINNAEUS, 1758) (OSTEICHTHYES: HEMIRAMPHIDAE) FROM THE COASTAL WATERS OF RIO GRANDE DO NORTE, BRAZIL
title_fullStr REPRODUCTIVE BIOLOGY OF THE HALF BEAK, Hemiramphus brasiliensis (LINNAEUS, 1758) (OSTEICHTHYES: HEMIRAMPHIDAE) FROM THE COASTAL WATERS OF RIO GRANDE DO NORTE, BRAZIL
title_full_unstemmed REPRODUCTIVE BIOLOGY OF THE HALF BEAK, Hemiramphus brasiliensis (LINNAEUS, 1758) (OSTEICHTHYES: HEMIRAMPHIDAE) FROM THE COASTAL WATERS OF RIO GRANDE DO NORTE, BRAZIL
title_sort REPRODUCTIVE BIOLOGY OF THE HALF BEAK, Hemiramphus brasiliensis (LINNAEUS, 1758) (OSTEICHTHYES: HEMIRAMPHIDAE) FROM THE COASTAL WATERS OF RIO GRANDE DO NORTE, BRAZIL
author de Oliveira, Isabelle Maria Bezerra
author_facet de Oliveira, Isabelle Maria Bezerra
de Oliveira, Mônica Rocha
Yamamoto, Maria Emília
Chellappa, Sathyabama
author_role author
author2 de Oliveira, Mônica Rocha
Yamamoto, Maria Emília
Chellappa, Sathyabama
author2_role author
author
author
dc.contributor.none.fl_str_mv

dc.contributor.author.fl_str_mv de Oliveira, Isabelle Maria Bezerra
de Oliveira, Mônica Rocha
Yamamoto, Maria Emília
Chellappa, Sathyabama
description The half beak, Hemiramphus brasiliensis (Linnaeus, 1758) (Osteichthyes: Hemiramphidae) is a marine pelagic fish encountered in the coastal waters of Rio Grande do Norte, which contributes to the fish production of the State. This study verified the reproductive biology of H. brasiliensis in the littoral waters of Caiçara do Norte, RN. The fish were captured monthly during a period of one year. The fish were measured, weighed, dissected and the gonads were examined to identify the sex and to verify stages of maturation of the gonads. The sex ratio, length at first sexual maturity, macroscopic and microscopic characterization of the development of gonads, the fecundity, the type of spawning and the reproductive period were determined. The gonadosomatic index (GSI) was determined for both sexes. The rainfall data was obtained for the study region. The results indicate that the sex ratio was 1M:1,1F and the average length at first maturity (L50) of females was 20cm and males was 28cm. The mean fecundity was 3100 mature oocytes. The macroscopic studies of the gonads indicated both sexes showed four stages of gonadal development being, immature, maturing, mature and spent. GSI showed two reproductive peaks for H. brasiliensis, the first from January to March and the second from May to July, indicating bimodal reproductive activity. Both peaks coincided with the rainy season of the region. The highest number of fish was caught commercially during their reproductive period.Keywords: marine pelagic fish; sex ratio; development of gonads.
publishDate 2012
dc.date.none.fl_str_mv 2012-12-27
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Artigo Avaliado pelos Pares
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://periodicos.unifap.br/index.php/biota/article/view/483
10.18561/2179-5746/biotaamazonia.v2n2p44-53
url https://periodicos.unifap.br/index.php/biota/article/view/483
identifier_str_mv 10.18561/2179-5746/biotaamazonia.v2n2p44-53
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://periodicos.unifap.br/index.php/biota/article/view/483/v2n2p44-53.pdf
dc.rights.driver.fl_str_mv Direitos autorais 2012 Biota Amazônia (Biote Amazonie, Biota Amazonia, Amazonian Biota)
http://creativecommons.org/licenses/by/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Direitos autorais 2012 Biota Amazônia (Biote Amazonie, Biota Amazonia, Amazonian Biota)
http://creativecommons.org/licenses/by/4.0
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.coverage.none.fl_str_mv





dc.publisher.none.fl_str_mv Universidade Federal do Amapá
publisher.none.fl_str_mv Universidade Federal do Amapá
dc.source.none.fl_str_mv Biota Amazônia (Biote Amazonie, Biota Amazonia, Amazonian Biota); v. 2, n. 2 (2012); 44-53
2179-5746
reponame:Biota Amazônia
instname:Universidade Federal do Amapá (UNIFAP)
instacron:UNIFAP
instname_str Universidade Federal do Amapá (UNIFAP)
instacron_str UNIFAP
institution UNIFAP
reponame_str Biota Amazônia
collection Biota Amazônia
repository.name.fl_str_mv Biota Amazônia - Universidade Federal do Amapá (UNIFAP)
repository.mail.fl_str_mv ||juliosa@unifap.br
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