Reproduction of Lytechinus variegatus (Echinodermata: Echinoidea): effect of lunar cycle and population characteristics - doi: 10.4025/actascibiolsci.v33i3.5124

Detalhes bibliográficos
Autor(a) principal: Lage, Alexandra Mara Cruz
Data de Publicação: 2011
Outros Autores: Joyeux, Jean-Christopher, Gomes, Levy de Carvalho
Tipo de documento: Artigo
Idioma: por
Título da fonte: Acta Scientiarum Biological Sciences
Texto Completo: http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/5124
Resumo: This work evaluated the spawning of sea urchin Lytechinus variegates based on lunar cycle and population characteristics. Eight monthly collections were realized to estimate the gonadosomatic index (GI) and population parameters regarding reproduction. To evaluate the effect of the lunar cycle on spawning, samples were taken for each moon phase of three lunar cycles. In the entire work 295 individuals were collected, 156 males and 131 females (1.19:1 ratio). However, there was no significant difference in the sex ratio of the population. The weight of males was significantly greater than that of females. There were no differences between males and females in gonadosomatic index (GI), gonad weight and diameter. There was an effect of the lunar periodicity on spawning, with lower GI in new moon, indicating that spawning occurs on the first lunar quarter in spring tide.
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spelling Reproduction of Lytechinus variegatus (Echinodermata: Echinoidea): effect of lunar cycle and population characteristics - doi: 10.4025/actascibiolsci.v33i3.5124Reprodução de Lytechinus variegatus (Echinodermata: Echinoidea): efeito do ciclo lunar e características da população - doi: 10.4025/actascibiolsci.v33i3.5124sea urchinreproductionlunar cycleEspírito Santoouriço do marreproduçãociclo lunarEspírito SantoEcologiaThis work evaluated the spawning of sea urchin Lytechinus variegates based on lunar cycle and population characteristics. Eight monthly collections were realized to estimate the gonadosomatic index (GI) and population parameters regarding reproduction. To evaluate the effect of the lunar cycle on spawning, samples were taken for each moon phase of three lunar cycles. In the entire work 295 individuals were collected, 156 males and 131 females (1.19:1 ratio). However, there was no significant difference in the sex ratio of the population. The weight of males was significantly greater than that of females. There were no differences between males and females in gonadosomatic index (GI), gonad weight and diameter. There was an effect of the lunar periodicity on spawning, with lower GI in new moon, indicating that spawning occurs on the first lunar quarter in spring tide.Este estudo avaliou as características reprodutivas de uma população do ouriço do mar Lytechinus variegatus e a influência do ciclo lunar na liberação de gametas. Foram realizadas oito coletas para avaliação do índice gonadossomático (IG) e dos parâmetros populacionais relacionados com a reprodução. Para avaliação do efeito da Lua na liberação de gametas foram realizadas coletas em três ciclos lunares completos. Ao todo foram coletados 295 indivíduos, sendo 156 machos e 131 fêmeas (proporção 1,19:1), porém não houve diferença significativa na proporção sexual da população. O peso dos machos foi significativamente maior que o das fêmeas, porém não houve diferença significativa no IG, peso gonadal e diâmetro entre os sexos. Com a amplitude no diâmetro dos animais coletados (5,5-8,7 cm) foram estabelecidas cinco classes de tamanho. Não houve diferenças significativas no IG entre as classes de tamanho. Houve efeito da periodicidade lunar na liberação de gametas, com menor IG na lua nova, indicando que esta ocorre no primeiro quarto lunar e em marés de sizígia.Universidade Estadual De Maringá2011-04-14info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionReproduçãoapplication/pdfhttp://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/512410.4025/actascibiolsci.v33i3.5124Acta Scientiarum. Biological Sciences; Vol 33 No 3 (2011); 341-346Acta Scientiarum. Biological Sciences; v. 33 n. 3 (2011); 341-3461807-863X1679-9283reponame:Acta Scientiarum Biological Sciencesinstname:Universidade Estadual de Maringá (UEM)instacron:UEMporhttp://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/5124/5124Lage, Alexandra Mara CruzJoyeux, Jean-ChristopherGomes, Levy de Carvalhoinfo:eu-repo/semantics/openAccess2022-11-23T17:33:46Zoai:periodicos.uem.br/ojs:article/5124Revistahttp://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSciPUBhttp://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/oai||actabiol@uem.br1807-863X1679-9283opendoar:2022-11-23T17:33:46Acta Scientiarum Biological Sciences - Universidade Estadual de Maringá (UEM)false
dc.title.none.fl_str_mv Reproduction of Lytechinus variegatus (Echinodermata: Echinoidea): effect of lunar cycle and population characteristics - doi: 10.4025/actascibiolsci.v33i3.5124
Reprodução de Lytechinus variegatus (Echinodermata: Echinoidea): efeito do ciclo lunar e características da população - doi: 10.4025/actascibiolsci.v33i3.5124
title Reproduction of Lytechinus variegatus (Echinodermata: Echinoidea): effect of lunar cycle and population characteristics - doi: 10.4025/actascibiolsci.v33i3.5124
spellingShingle Reproduction of Lytechinus variegatus (Echinodermata: Echinoidea): effect of lunar cycle and population characteristics - doi: 10.4025/actascibiolsci.v33i3.5124
Lage, Alexandra Mara Cruz
sea urchin
reproduction
lunar cycle
Espírito Santo
ouriço do mar
reprodução
ciclo lunar
Espírito Santo
Ecologia
title_short Reproduction of Lytechinus variegatus (Echinodermata: Echinoidea): effect of lunar cycle and population characteristics - doi: 10.4025/actascibiolsci.v33i3.5124
title_full Reproduction of Lytechinus variegatus (Echinodermata: Echinoidea): effect of lunar cycle and population characteristics - doi: 10.4025/actascibiolsci.v33i3.5124
title_fullStr Reproduction of Lytechinus variegatus (Echinodermata: Echinoidea): effect of lunar cycle and population characteristics - doi: 10.4025/actascibiolsci.v33i3.5124
title_full_unstemmed Reproduction of Lytechinus variegatus (Echinodermata: Echinoidea): effect of lunar cycle and population characteristics - doi: 10.4025/actascibiolsci.v33i3.5124
title_sort Reproduction of Lytechinus variegatus (Echinodermata: Echinoidea): effect of lunar cycle and population characteristics - doi: 10.4025/actascibiolsci.v33i3.5124
author Lage, Alexandra Mara Cruz
author_facet Lage, Alexandra Mara Cruz
Joyeux, Jean-Christopher
Gomes, Levy de Carvalho
author_role author
author2 Joyeux, Jean-Christopher
Gomes, Levy de Carvalho
author2_role author
author
dc.contributor.author.fl_str_mv Lage, Alexandra Mara Cruz
Joyeux, Jean-Christopher
Gomes, Levy de Carvalho
dc.subject.por.fl_str_mv sea urchin
reproduction
lunar cycle
Espírito Santo
ouriço do mar
reprodução
ciclo lunar
Espírito Santo
Ecologia
topic sea urchin
reproduction
lunar cycle
Espírito Santo
ouriço do mar
reprodução
ciclo lunar
Espírito Santo
Ecologia
description This work evaluated the spawning of sea urchin Lytechinus variegates based on lunar cycle and population characteristics. Eight monthly collections were realized to estimate the gonadosomatic index (GI) and population parameters regarding reproduction. To evaluate the effect of the lunar cycle on spawning, samples were taken for each moon phase of three lunar cycles. In the entire work 295 individuals were collected, 156 males and 131 females (1.19:1 ratio). However, there was no significant difference in the sex ratio of the population. The weight of males was significantly greater than that of females. There were no differences between males and females in gonadosomatic index (GI), gonad weight and diameter. There was an effect of the lunar periodicity on spawning, with lower GI in new moon, indicating that spawning occurs on the first lunar quarter in spring tide.
publishDate 2011
dc.date.none.fl_str_mv 2011-04-14
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Reprodução
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/5124
10.4025/actascibiolsci.v33i3.5124
url http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/5124
identifier_str_mv 10.4025/actascibiolsci.v33i3.5124
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/5124/5124
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade Estadual De Maringá
publisher.none.fl_str_mv Universidade Estadual De Maringá
dc.source.none.fl_str_mv Acta Scientiarum. Biological Sciences; Vol 33 No 3 (2011); 341-346
Acta Scientiarum. Biological Sciences; v. 33 n. 3 (2011); 341-346
1807-863X
1679-9283
reponame:Acta Scientiarum Biological Sciences
instname:Universidade Estadual de Maringá (UEM)
instacron:UEM
instname_str Universidade Estadual de Maringá (UEM)
instacron_str UEM
institution UEM
reponame_str Acta Scientiarum Biological Sciences
collection Acta Scientiarum Biological Sciences
repository.name.fl_str_mv Acta Scientiarum Biological Sciences - Universidade Estadual de Maringá (UEM)
repository.mail.fl_str_mv ||actabiol@uem.br
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