TÍTULO EM INGLÊS: REPRODUCTION OF THE FISH Leporinus piau (FOWLER, 1941) AND THE ENVIRONMENTAL PARAMETERS OF THE MARECHAL DUTRA RESERVOIR, RIO GRANDE DO NORTE
Autor(a) principal: | |
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Data de Publicação: | 2012 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Biota Amazônia |
Texto Completo: | https://periodicos.unifap.br/index.php/biota/article/view/411 |
Resumo: | This study verified the reproductive aspects of Leporinus piau (Fowler, 1941) and the environmental variables of the reservoir Marechal Dutra, RN. All captured fish were measured individually and the total length, body and gonad weights were registered. The concentration of dissolved oxygen, pH, electrical conductivity, water temperature and rainfall data were recorded. The average rainfall was 86.5 ± 94.4 mm. The average water temperature was 27 ± 2.2 °C, the average concentration of dissolved oxygen was 6.5 ± 1.4 mgL-1, the average pH was 8.3 ± 0.4 and the average value of the electrical conductivity was 585 ± 29.1 μScm-1.A total of 106 specimes of L. piau were captured, out of which 45 males and 61 females. The sex ratio was 1M:1F. The average length of females was 25.6 ± 3.1cm, and the males was 23 ± 2.3cm. The average weight for the females ranged was 256.5 ± 104.6 g for males and was 178.2 ± 62.9g. The stages ranged from immature, maturing, mature and spent. The monthly changes in GSI of males and females were similar, with low values in September and October, and high values from December to January, followed by lower values from March to May. The condition factor for both sexes showed high in the period from September to November. The reproductive period of L. piau occurs during the period of rain.Keywords: piau; Leporinus piau; reproductive period; gonadosomatic index; Caatinga |
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Biota Amazônia |
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TÍTULO EM INGLÊS: REPRODUCTION OF THE FISH Leporinus piau (FOWLER, 1941) AND THE ENVIRONMENTAL PARAMETERS OF THE MARECHAL DUTRA RESERVOIR, RIO GRANDE DO NORTEREPRODUÇÃO DO PEIXE PIAU PRETO Leporinus piau (FOWLER, 1941) E AS VARIÁVEIS AMBIENTAIS DO AÇUDE MARECHAL DUTRA, RIO GRANDE DO NORTEThis study verified the reproductive aspects of Leporinus piau (Fowler, 1941) and the environmental variables of the reservoir Marechal Dutra, RN. All captured fish were measured individually and the total length, body and gonad weights were registered. The concentration of dissolved oxygen, pH, electrical conductivity, water temperature and rainfall data were recorded. The average rainfall was 86.5 ± 94.4 mm. The average water temperature was 27 ± 2.2 °C, the average concentration of dissolved oxygen was 6.5 ± 1.4 mgL-1, the average pH was 8.3 ± 0.4 and the average value of the electrical conductivity was 585 ± 29.1 μScm-1.A total of 106 specimes of L. piau were captured, out of which 45 males and 61 females. The sex ratio was 1M:1F. The average length of females was 25.6 ± 3.1cm, and the males was 23 ± 2.3cm. The average weight for the females ranged was 256.5 ± 104.6 g for males and was 178.2 ± 62.9g. The stages ranged from immature, maturing, mature and spent. The monthly changes in GSI of males and females were similar, with low values in September and October, and high values from December to January, followed by lower values from March to May. The condition factor for both sexes showed high in the period from September to November. The reproductive period of L. piau occurs during the period of rain.Keywords: piau; Leporinus piau; reproductive period; gonadosomatic index; CaatingaO presente estudo verificou os aspectos reprodutivos de Leporinus piau(Fowler, 1941) e as variáveis ambientais do açude Marechal Dutra, RN. Para cada peixe foram registrados o comprimento total, peso total e das gônadas. A concentração do oxigênio dissolvido, opH, condutividade elétrica, temperatura da água e os dados de pluviosidade foram registrados.A pluviometria média foi de 86,5 ± 94,4 mm. A temperatura média da água foi de 27 ± 2,2°C, o valor médio da concentração do oxigênio dissolvido foi de 6,5 ± 1,4 mgL-1, o valor médio do pH foi de 8,3 ± 0,4 e o valor médio da condutividade elétrica foi 585 ± 29,1 μScm-1. Foi capturado um total de 106 exemplares de L. piau, sendo 45 machos e 61 fêmeas. A proporção sexual foi de 1M:1F. O comprimento médio das fêmeas foi 25,6 ±3,1 cm, e dos machos foi 23 ± 2,3 cm. O peso médio para as fêmeas variou foi de 256,5 ± 104,6 g, e para os machos foi de 178,2 ± 62,9 g. Os estádios variaram de imaturo, em maturação, maduro e esvaziado. As variações mensais do IGS dos machos e fêmeas foram semelhantes, com valores baixos no mês de setembro e outubro, e valores altos de dezembro a janeiro, seguidos de valores mais baixos de março a maio. O fator de condição para ambos os sexos se mostraram altos no período de setembro a novembro. O período reprodutivo de L. piau ocorre durante o período de chuvas da região.Palavras-chave: piau, Leporinus piau, período reprodutivo, índice gonadossomático, Caatinga.Universidade Federal do AmapáCNPqFilho, José Júlio SilvaNascimento, Wallace SilvaAraújo, Andréa SoaresBarros, Nirlei Hirachy CostaChellappa, Sathyabama2012-07-31info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArtigo Avaliado pelos Paresapplication/pdfhttps://periodicos.unifap.br/index.php/biota/article/view/41110.18561/2179-5746/biotaamazonia.v2n1p10-21Biota Amazônia (Biote Amazonie, Biota Amazonia, Amazonian Biota); v. 2, n. 1 (2012); 10-212179-5746reponame:Biota Amazôniainstname:Universidade Federal do Amapá (UNIFAP)instacron:UNIFAPporhttps://periodicos.unifap.br/index.php/biota/article/view/411/v2n1p10-21.pdfhttps://periodicos.unifap.br/index.php/biota/article/downloadSuppFile/411/51Direitos autorais 2012 Biota Amazônia (Biote Amazonie, Biota Amazonia, Amazonian Biota)http://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccess2016-04-18T20:33:22Zoai:ojs.pkp.sfu.ca:article/411Revistahttp://periodicos.unifap.br/index.php/biotaONGhttps://periodicos.unifap.br/index.php/biota/oai||juliosa@unifap.br2179-57462179-5746opendoar:2016-04-18T20:33:22Biota Amazônia - Universidade Federal do Amapá (UNIFAP)false |
dc.title.none.fl_str_mv |
TÍTULO EM INGLÊS: REPRODUCTION OF THE FISH Leporinus piau (FOWLER, 1941) AND THE ENVIRONMENTAL PARAMETERS OF THE MARECHAL DUTRA RESERVOIR, RIO GRANDE DO NORTE REPRODUÇÃO DO PEIXE PIAU PRETO Leporinus piau (FOWLER, 1941) E AS VARIÁVEIS AMBIENTAIS DO AÇUDE MARECHAL DUTRA, RIO GRANDE DO NORTE |
title |
TÍTULO EM INGLÊS: REPRODUCTION OF THE FISH Leporinus piau (FOWLER, 1941) AND THE ENVIRONMENTAL PARAMETERS OF THE MARECHAL DUTRA RESERVOIR, RIO GRANDE DO NORTE |
spellingShingle |
TÍTULO EM INGLÊS: REPRODUCTION OF THE FISH Leporinus piau (FOWLER, 1941) AND THE ENVIRONMENTAL PARAMETERS OF THE MARECHAL DUTRA RESERVOIR, RIO GRANDE DO NORTE Filho, José Júlio Silva |
title_short |
TÍTULO EM INGLÊS: REPRODUCTION OF THE FISH Leporinus piau (FOWLER, 1941) AND THE ENVIRONMENTAL PARAMETERS OF THE MARECHAL DUTRA RESERVOIR, RIO GRANDE DO NORTE |
title_full |
TÍTULO EM INGLÊS: REPRODUCTION OF THE FISH Leporinus piau (FOWLER, 1941) AND THE ENVIRONMENTAL PARAMETERS OF THE MARECHAL DUTRA RESERVOIR, RIO GRANDE DO NORTE |
title_fullStr |
TÍTULO EM INGLÊS: REPRODUCTION OF THE FISH Leporinus piau (FOWLER, 1941) AND THE ENVIRONMENTAL PARAMETERS OF THE MARECHAL DUTRA RESERVOIR, RIO GRANDE DO NORTE |
title_full_unstemmed |
TÍTULO EM INGLÊS: REPRODUCTION OF THE FISH Leporinus piau (FOWLER, 1941) AND THE ENVIRONMENTAL PARAMETERS OF THE MARECHAL DUTRA RESERVOIR, RIO GRANDE DO NORTE |
title_sort |
TÍTULO EM INGLÊS: REPRODUCTION OF THE FISH Leporinus piau (FOWLER, 1941) AND THE ENVIRONMENTAL PARAMETERS OF THE MARECHAL DUTRA RESERVOIR, RIO GRANDE DO NORTE |
author |
Filho, José Júlio Silva |
author_facet |
Filho, José Júlio Silva Nascimento, Wallace Silva Araújo, Andréa Soares Barros, Nirlei Hirachy Costa Chellappa, Sathyabama |
author_role |
author |
author2 |
Nascimento, Wallace Silva Araújo, Andréa Soares Barros, Nirlei Hirachy Costa Chellappa, Sathyabama |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
CNPq |
dc.contributor.author.fl_str_mv |
Filho, José Júlio Silva Nascimento, Wallace Silva Araújo, Andréa Soares Barros, Nirlei Hirachy Costa Chellappa, Sathyabama |
description |
This study verified the reproductive aspects of Leporinus piau (Fowler, 1941) and the environmental variables of the reservoir Marechal Dutra, RN. All captured fish were measured individually and the total length, body and gonad weights were registered. The concentration of dissolved oxygen, pH, electrical conductivity, water temperature and rainfall data were recorded. The average rainfall was 86.5 ± 94.4 mm. The average water temperature was 27 ± 2.2 °C, the average concentration of dissolved oxygen was 6.5 ± 1.4 mgL-1, the average pH was 8.3 ± 0.4 and the average value of the electrical conductivity was 585 ± 29.1 μScm-1.A total of 106 specimes of L. piau were captured, out of which 45 males and 61 females. The sex ratio was 1M:1F. The average length of females was 25.6 ± 3.1cm, and the males was 23 ± 2.3cm. The average weight for the females ranged was 256.5 ± 104.6 g for males and was 178.2 ± 62.9g. The stages ranged from immature, maturing, mature and spent. The monthly changes in GSI of males and females were similar, with low values in September and October, and high values from December to January, followed by lower values from March to May. The condition factor for both sexes showed high in the period from September to November. The reproductive period of L. piau occurs during the period of rain.Keywords: piau; Leporinus piau; reproductive period; gonadosomatic index; Caatinga |
publishDate |
2012 |
dc.date.none.fl_str_mv |
2012-07-31 |
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/411 10.18561/2179-5746/biotaamazonia.v2n1p10-21 |
url |
https://periodicos.unifap.br/index.php/biota/article/view/411 |
identifier_str_mv |
10.18561/2179-5746/biotaamazonia.v2n1p10-21 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://periodicos.unifap.br/index.php/biota/article/view/411/v2n1p10-21.pdf https://periodicos.unifap.br/index.php/biota/article/downloadSuppFile/411/51 |
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. 1 (2012); 10-21 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 |
_version_ |
1800218370690252800 |