Post-marsupial development of Hyalella pleoacuta (Crustacea: Amphipoda) : stages 1-4
Autor(a) principal: | |
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Data de Publicação: | 2009 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/80649 |
Resumo: | The goal of this study is to describe and compare the initial stages of the post-marsupial development of Hyalella pleoacuta González, Bond-Buckup & Araujo, 2006, prior to the development of sexual dimorphism. Ovigerous females were collected in São José dos Ausentes, RS, Brazil and kept in laboratory. Juveniles were kept separately after emerging from the marsupium and were monitored daily for the presence of exuvia. Individuals from post-marsupial stages (S) 1 to 4 were dissected and illustrated. Cuticular structures were observed through SEM. Twenty three types of setae, one type of setule, two types of pores, two types of denticles and one type of penicilium were found. Cuticular structures undergo modification through development in the matters of haste size, number and size of setules, and formation of the polygonal pattern, although there is no change from one type to another. Gnathopods and antennae are the appendages that go through more modifications. The articles number of the flagellum is constant until S2. The size of the coxal plate of gnathopods in relation to the propodus has a tendency to increase throughout the stages. The uropod proportion becomes smaller in S3 when compared to S1. The number of serrate setae in the external plate of maxilla 1 varies up to S4, being different from the adult whose number is 9. The telson modifies its shape but its setae number is constant. |
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Schroeder, Deise Leda GarciaAraujo, Paula Beatriz de2013-11-19T01:47:01Z20090101-8175http://hdl.handle.net/10183/80649000767996The goal of this study is to describe and compare the initial stages of the post-marsupial development of Hyalella pleoacuta González, Bond-Buckup & Araujo, 2006, prior to the development of sexual dimorphism. Ovigerous females were collected in São José dos Ausentes, RS, Brazil and kept in laboratory. Juveniles were kept separately after emerging from the marsupium and were monitored daily for the presence of exuvia. Individuals from post-marsupial stages (S) 1 to 4 were dissected and illustrated. Cuticular structures were observed through SEM. Twenty three types of setae, one type of setule, two types of pores, two types of denticles and one type of penicilium were found. Cuticular structures undergo modification through development in the matters of haste size, number and size of setules, and formation of the polygonal pattern, although there is no change from one type to another. Gnathopods and antennae are the appendages that go through more modifications. The articles number of the flagellum is constant until S2. The size of the coxal plate of gnathopods in relation to the propodus has a tendency to increase throughout the stages. The uropod proportion becomes smaller in S3 when compared to S1. The number of serrate setae in the external plate of maxilla 1 varies up to S4, being different from the adult whose number is 9. The telson modifies its shape but its setae number is constant.application/pdfengRevista Brasileira de Zoologia. São Paulo, SP. Vol. 26, n. 3 (Sept. 2009), p. 391-406Hyalella pleoacutaMorfologia animalCuticular structuresJuvenilesMorphologyPost-marsupial development of Hyalella pleoacuta (Crustacea: Amphipoda) : stages 1-4info:eu-repo/semantics/articleinfo:eu-repo/semantics/otherinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSORIGINAL000767996.pdf000767996.pdfTexto completo (inglês)application/pdf2224905http://www.lume.ufrgs.br/bitstream/10183/80649/1/000767996.pdfff91f8d2b67151520386a6af3e6e826fMD51TEXT000767996.pdf.txt000767996.pdf.txtExtracted Texttext/plain47404http://www.lume.ufrgs.br/bitstream/10183/80649/2/000767996.pdf.txt2a70ff4427ca5390cadd87cd0b0ffa34MD52THUMBNAIL000767996.pdf.jpg000767996.pdf.jpgGenerated Thumbnailimage/jpeg1783http://www.lume.ufrgs.br/bitstream/10183/80649/3/000767996.pdf.jpg982e65bd1d6ab7272ddecfb677b25e4bMD5310183/806492018-10-05 08:31:10.22oai:www.lume.ufrgs.br:10183/80649Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2018-10-05T11:31:10Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Post-marsupial development of Hyalella pleoacuta (Crustacea: Amphipoda) : stages 1-4 |
title |
Post-marsupial development of Hyalella pleoacuta (Crustacea: Amphipoda) : stages 1-4 |
spellingShingle |
Post-marsupial development of Hyalella pleoacuta (Crustacea: Amphipoda) : stages 1-4 Schroeder, Deise Leda Garcia Hyalella pleoacuta Morfologia animal Cuticular structures Juveniles Morphology |
title_short |
Post-marsupial development of Hyalella pleoacuta (Crustacea: Amphipoda) : stages 1-4 |
title_full |
Post-marsupial development of Hyalella pleoacuta (Crustacea: Amphipoda) : stages 1-4 |
title_fullStr |
Post-marsupial development of Hyalella pleoacuta (Crustacea: Amphipoda) : stages 1-4 |
title_full_unstemmed |
Post-marsupial development of Hyalella pleoacuta (Crustacea: Amphipoda) : stages 1-4 |
title_sort |
Post-marsupial development of Hyalella pleoacuta (Crustacea: Amphipoda) : stages 1-4 |
author |
Schroeder, Deise Leda Garcia |
author_facet |
Schroeder, Deise Leda Garcia Araujo, Paula Beatriz de |
author_role |
author |
author2 |
Araujo, Paula Beatriz de |
author2_role |
author |
dc.contributor.author.fl_str_mv |
Schroeder, Deise Leda Garcia Araujo, Paula Beatriz de |
dc.subject.por.fl_str_mv |
Hyalella pleoacuta Morfologia animal |
topic |
Hyalella pleoacuta Morfologia animal Cuticular structures Juveniles Morphology |
dc.subject.eng.fl_str_mv |
Cuticular structures Juveniles Morphology |
description |
The goal of this study is to describe and compare the initial stages of the post-marsupial development of Hyalella pleoacuta González, Bond-Buckup & Araujo, 2006, prior to the development of sexual dimorphism. Ovigerous females were collected in São José dos Ausentes, RS, Brazil and kept in laboratory. Juveniles were kept separately after emerging from the marsupium and were monitored daily for the presence of exuvia. Individuals from post-marsupial stages (S) 1 to 4 were dissected and illustrated. Cuticular structures were observed through SEM. Twenty three types of setae, one type of setule, two types of pores, two types of denticles and one type of penicilium were found. Cuticular structures undergo modification through development in the matters of haste size, number and size of setules, and formation of the polygonal pattern, although there is no change from one type to another. Gnathopods and antennae are the appendages that go through more modifications. The articles number of the flagellum is constant until S2. The size of the coxal plate of gnathopods in relation to the propodus has a tendency to increase throughout the stages. The uropod proportion becomes smaller in S3 when compared to S1. The number of serrate setae in the external plate of maxilla 1 varies up to S4, being different from the adult whose number is 9. The telson modifies its shape but its setae number is constant. |
publishDate |
2009 |
dc.date.issued.fl_str_mv |
2009 |
dc.date.accessioned.fl_str_mv |
2013-11-19T01:47:01Z |
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http://hdl.handle.net/10183/80649 |
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0101-8175 |
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000767996 |
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http://hdl.handle.net/10183/80649 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Revista Brasileira de Zoologia. São Paulo, SP. Vol. 26, n. 3 (Sept. 2009), p. 391-406 |
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info:eu-repo/semantics/openAccess |
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openAccess |
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