Length class and histological description of the gonads of Diplodon ellipticus (Wagner, 1827) (Mollusca, Bivalvia, Hyriidae) at an artificial lake, Morretes, Paraná, Brazil

Detalhes bibliográficos
Autor(a) principal: Nogueira Meyer, Ana Aparecida
Data de Publicação: 2014
Outros Autores: Oliveira, Edinalva, Budach, Tissiane Teixeira, Viesser, Jessica Aparecida
Tipo de documento: Artigo
Idioma: por
Título da fonte: Biotemas (Online)
Texto Completo: https://periodicos.ufsc.br/index.php/biotemas/article/view/2175-7925.2014v27n3p81
Resumo: This study aimed to analyze the frequency by length classes and the histological organization of gonads of Diplodon ellipticus at an artificial lake located in the town of Morretes, Paraná, Brazil. Six bimonthly sampling campaigns were conducted within the period from July 2009 to May 2010, with capture of 150 specimens. The total length of shells was measured for determining the frequencies of length classes and an analysis of the presence of marsupials in branchiae was performed. Sex determination was performed through histological analysis of cross sections of the visceral mass. We registered 8 length classes, with an interval of 9 mm, and the modal class varied between 50 and 59 mm. The population is predominantly dioecious, with occurrence of hermaphrodite specimens at low frequency. Marsupials were registered among females (86%) in all sampling campaigns and in 2 hermaphrodite specimens. Histological analyses showed that spermatogenesis and oogenesis occur over the year, indicating that D. ellipticus has a strategy that provides continuous reproduction, with peaks of glochidia release. 
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spelling Length class and histological description of the gonads of Diplodon ellipticus (Wagner, 1827) (Mollusca, Bivalvia, Hyriidae) at an artificial lake, Morretes, Paraná, BrazilClasses de comprimento e descrição histológica das gônadas de Diplodon ellipticus (Wagner, 1827) (Mollusca, Bivalvia, Hyriidae) em um lago artificial, Morretes, Paraná, BrasilThis study aimed to analyze the frequency by length classes and the histological organization of gonads of Diplodon ellipticus at an artificial lake located in the town of Morretes, Paraná, Brazil. Six bimonthly sampling campaigns were conducted within the period from July 2009 to May 2010, with capture of 150 specimens. The total length of shells was measured for determining the frequencies of length classes and an analysis of the presence of marsupials in branchiae was performed. Sex determination was performed through histological analysis of cross sections of the visceral mass. We registered 8 length classes, with an interval of 9 mm, and the modal class varied between 50 and 59 mm. The population is predominantly dioecious, with occurrence of hermaphrodite specimens at low frequency. Marsupials were registered among females (86%) in all sampling campaigns and in 2 hermaphrodite specimens. Histological analyses showed that spermatogenesis and oogenesis occur over the year, indicating that D. ellipticus has a strategy that provides continuous reproduction, with peaks of glochidia release. O objetivo deste estudo foi analisar a frequência por classes de comprimento e a organização histológica das gônadas de Diplodon ellipticus em um lago artificial localizado no município de Morretes-PR. Foram realizadas seis campanhas amostrais bimestrais no período de julho de 2009 a maio 2010, com captura de 150 espécimes. O comprimento total das conchas foi medido para determinação das frequências de classes de comprimento e foi realizada análise da presença de marsúpios nas brânquias. A determinação do sexo foi realizada por meio da análise histológica de secções transversais da massa visceral. Foram registradas oito classes de comprimento, com intervalo de 9 mm, e a classe modal variou entre 50 a 59 mm. A população é predominantemente dioica, com ocorrência de espécimes hermafroditas em baixa frequência. Marsúpios foram registrados em fêmeas (86%) em todas as coletas amostrais e em dois exemplares hermafroditas. Análises histológicas demonstraram que a espermatogênese e ovogênese ocorrem ao longo do ano, indicando que D. ellipticusapresenta uma estratégia que proporciona uma reprodução contínua, com picos de liberação de gloquídios. Universidade Federal de Santa Catarina2014-05-14info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.ufsc.br/index.php/biotemas/article/view/2175-7925.2014v27n3p8110.5007/2175-7925.2014v27n3p81Biotemas; v. 27 n. 3 (2014); 81-962175-79250103-1643reponame:Biotemas (Online)instname:Universidade Federal de Santa Catarina (UFSC)instacron:UFSCporhttps://periodicos.ufsc.br/index.php/biotemas/article/view/2175-7925.2014v27n3p81/27643Copyright (c) 2014 Ana Aparecida Nogueira Meyer, Edinalva Oliveira, Tissiane Teixeira Budach, Jessica Aparecida Viesserinfo:eu-repo/semantics/openAccessNogueira Meyer, Ana AparecidaOliveira, EdinalvaBudach, Tissiane TeixeiraViesser, Jessica Aparecida2017-10-19T18:43:08Zoai:periodicos.ufsc.br:article/31473Revistahttp://www.biotemas.ufsc.br/index.htmPUBhttps://periodicos.ufsc.br/index.php/biotemas/oai||carlospinto@ccb.ufsc.br2175-79250103-1643opendoar:2017-10-19T18:43:08Biotemas (Online) - Universidade Federal de Santa Catarina (UFSC)false
dc.title.none.fl_str_mv Length class and histological description of the gonads of Diplodon ellipticus (Wagner, 1827) (Mollusca, Bivalvia, Hyriidae) at an artificial lake, Morretes, Paraná, Brazil
Classes de comprimento e descrição histológica das gônadas de Diplodon ellipticus (Wagner, 1827) (Mollusca, Bivalvia, Hyriidae) em um lago artificial, Morretes, Paraná, Brasil
title Length class and histological description of the gonads of Diplodon ellipticus (Wagner, 1827) (Mollusca, Bivalvia, Hyriidae) at an artificial lake, Morretes, Paraná, Brazil
spellingShingle Length class and histological description of the gonads of Diplodon ellipticus (Wagner, 1827) (Mollusca, Bivalvia, Hyriidae) at an artificial lake, Morretes, Paraná, Brazil
Nogueira Meyer, Ana Aparecida
title_short Length class and histological description of the gonads of Diplodon ellipticus (Wagner, 1827) (Mollusca, Bivalvia, Hyriidae) at an artificial lake, Morretes, Paraná, Brazil
title_full Length class and histological description of the gonads of Diplodon ellipticus (Wagner, 1827) (Mollusca, Bivalvia, Hyriidae) at an artificial lake, Morretes, Paraná, Brazil
title_fullStr Length class and histological description of the gonads of Diplodon ellipticus (Wagner, 1827) (Mollusca, Bivalvia, Hyriidae) at an artificial lake, Morretes, Paraná, Brazil
title_full_unstemmed Length class and histological description of the gonads of Diplodon ellipticus (Wagner, 1827) (Mollusca, Bivalvia, Hyriidae) at an artificial lake, Morretes, Paraná, Brazil
title_sort Length class and histological description of the gonads of Diplodon ellipticus (Wagner, 1827) (Mollusca, Bivalvia, Hyriidae) at an artificial lake, Morretes, Paraná, Brazil
author Nogueira Meyer, Ana Aparecida
author_facet Nogueira Meyer, Ana Aparecida
Oliveira, Edinalva
Budach, Tissiane Teixeira
Viesser, Jessica Aparecida
author_role author
author2 Oliveira, Edinalva
Budach, Tissiane Teixeira
Viesser, Jessica Aparecida
author2_role author
author
author
dc.contributor.author.fl_str_mv Nogueira Meyer, Ana Aparecida
Oliveira, Edinalva
Budach, Tissiane Teixeira
Viesser, Jessica Aparecida
description This study aimed to analyze the frequency by length classes and the histological organization of gonads of Diplodon ellipticus at an artificial lake located in the town of Morretes, Paraná, Brazil. Six bimonthly sampling campaigns were conducted within the period from July 2009 to May 2010, with capture of 150 specimens. The total length of shells was measured for determining the frequencies of length classes and an analysis of the presence of marsupials in branchiae was performed. Sex determination was performed through histological analysis of cross sections of the visceral mass. We registered 8 length classes, with an interval of 9 mm, and the modal class varied between 50 and 59 mm. The population is predominantly dioecious, with occurrence of hermaphrodite specimens at low frequency. Marsupials were registered among females (86%) in all sampling campaigns and in 2 hermaphrodite specimens. Histological analyses showed that spermatogenesis and oogenesis occur over the year, indicating that D. ellipticus has a strategy that provides continuous reproduction, with peaks of glochidia release. 
publishDate 2014
dc.date.none.fl_str_mv 2014-05-14
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
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dc.identifier.uri.fl_str_mv https://periodicos.ufsc.br/index.php/biotemas/article/view/2175-7925.2014v27n3p81
10.5007/2175-7925.2014v27n3p81
url https://periodicos.ufsc.br/index.php/biotemas/article/view/2175-7925.2014v27n3p81
identifier_str_mv 10.5007/2175-7925.2014v27n3p81
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://periodicos.ufsc.br/index.php/biotemas/article/view/2175-7925.2014v27n3p81/27643
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 Federal de Santa Catarina
publisher.none.fl_str_mv Universidade Federal de Santa Catarina
dc.source.none.fl_str_mv Biotemas; v. 27 n. 3 (2014); 81-96
2175-7925
0103-1643
reponame:Biotemas (Online)
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