Relative growth of freshwater prawn Macrobrachium brasiliense (Decapoda, Palaemonidae) and its implications for reproduction
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1590/1678-4766e2019005 http://hdl.handle.net/11449/185407 |
Resumo: | The main objective of this study was to estimate the morphological sexual maturity of Macrobrachium brasiliense (Heller, 1862) and to analyze the relative growth of the species. During one year of sampling, from July 2012 to June 2013, 199 specimens were collected in a stream located in a Cerrado biome, in the Triangulo Mineiro region, state of Minas Gerais. Once identified and sexed, the length of the carapace, the length of the segments of the chelipeds (ischium, merus, carpus, propodus and dactyl) and width of the pleura were measured (mm). The maximum and mean sizes of the carapace length measured 20.5 mm (Mean: 9.6 +/- 4.2 mm) and 20.1 mm (Mean: 7.7 +/- 3.4 mm) for males and females, respectively. The propodus length for males, and the pleura width for females, were used for the classification of the specimens into juvenile and adult, using K-means analysis and discriminant analysis. The relative growth of the species was also evaluated through covariance analysis for all structures (ANCOVA, alpha = 0.05). In females, the growth of most structures occurred equally between juveniles and adults, with the exception of the merus and pleura structures. On the other hand, the growth of almost all structures of males differed between juveniles and adults. Only the carpus and the pleura growth were similar. We also estimated the size at onset of morphological sexual maturity at 8.64 mm CL for males (CL50%,r = 1.71) and 8.03 mm CL for females (CL50%, r = 0.07). Our results contribute to the understanding of some important questions related to the reproductive biology of M. brasiliense. We noted that males grow differently from females and become the largest individuals in the population, resulting in a sexual dimorphism. Such sexual dimorphism might promote the development of the temporary mating guarding behavior, a reproductive strategy very important for caridean shrimps. |
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Relative growth of freshwater prawn Macrobrachium brasiliense (Decapoda, Palaemonidae) and its implications for reproductionAllometrymorphological sexual maturityreproductive biologyThe main objective of this study was to estimate the morphological sexual maturity of Macrobrachium brasiliense (Heller, 1862) and to analyze the relative growth of the species. During one year of sampling, from July 2012 to June 2013, 199 specimens were collected in a stream located in a Cerrado biome, in the Triangulo Mineiro region, state of Minas Gerais. Once identified and sexed, the length of the carapace, the length of the segments of the chelipeds (ischium, merus, carpus, propodus and dactyl) and width of the pleura were measured (mm). The maximum and mean sizes of the carapace length measured 20.5 mm (Mean: 9.6 +/- 4.2 mm) and 20.1 mm (Mean: 7.7 +/- 3.4 mm) for males and females, respectively. The propodus length for males, and the pleura width for females, were used for the classification of the specimens into juvenile and adult, using K-means analysis and discriminant analysis. The relative growth of the species was also evaluated through covariance analysis for all structures (ANCOVA, alpha = 0.05). In females, the growth of most structures occurred equally between juveniles and adults, with the exception of the merus and pleura structures. On the other hand, the growth of almost all structures of males differed between juveniles and adults. Only the carpus and the pleura growth were similar. We also estimated the size at onset of morphological sexual maturity at 8.64 mm CL for males (CL50%,r = 1.71) and 8.03 mm CL for females (CL50%, r = 0.07). Our results contribute to the understanding of some important questions related to the reproductive biology of M. brasiliense. We noted that males grow differently from females and become the largest individuals in the population, resulting in a sexual dimorphism. Such sexual dimorphism might promote the development of the temporary mating guarding behavior, a reproductive strategy very important for caridean shrimps.Fundação de Amparo à Pesquisa do Estado de Minas Gerais (FAPEMIG)Instituto de Biologia of the Universidade Federal de UberlandiaUniv Estadual Paulista, Lab Biol Camaroes Marinhos & Agua Doce, Fac Ciencias, Av Eng Luis Edmundo Carrijo Coube 14-01, BR-17033360 Bauru, SP, BrazilUniv Fed Uberlandia, Lab Ecol Ecossistemas Aquat, Inst Biol, Av Para 1720, BR-38400902 Uberlandia, MG, BrazilUniv Estadual Paulista, Lab Biol Camaroes Marinhos & Agua Doce, Fac Ciencias, Av Eng Luis Edmundo Carrijo Coube 14-01, BR-17033360 Bauru, SP, BrazilFundacao Zoobotanica Rio Grande Sul, Museu Ciencias NaturaisUniversidade Estadual Paulista (Unesp)Universidade Federal de Uberlândia (UFU)Nogueira, Caio dos Santos [UNESP]Oliveira, Marcela Silvano deJacobucci, Giuliano BuzaAlmeida, Ariadine Cristine de2019-10-04T12:35:14Z2019-10-04T12:35:14Z2019-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article8application/pdfhttp://dx.doi.org/10.1590/1678-4766e2019005Iheringia Serie Zoologia. Porto Alegre: Fundacao Zoobotanica Rio Grande Sul, Museu Ciencias Naturais, v. 109, 8 p., 2019.0073-4721http://hdl.handle.net/11449/18540710.1590/1678-4766e2019005S0073-47212019000100205WOS:000457862800001S0073-47212019000100205.pdfWeb of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengIheringia Serie Zoologiainfo:eu-repo/semantics/openAccess2024-04-23T15:23:05Zoai:repositorio.unesp.br:11449/185407Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T15:34:23.715694Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Relative growth of freshwater prawn Macrobrachium brasiliense (Decapoda, Palaemonidae) and its implications for reproduction |
title |
Relative growth of freshwater prawn Macrobrachium brasiliense (Decapoda, Palaemonidae) and its implications for reproduction |
spellingShingle |
Relative growth of freshwater prawn Macrobrachium brasiliense (Decapoda, Palaemonidae) and its implications for reproduction Nogueira, Caio dos Santos [UNESP] Allometry morphological sexual maturity reproductive biology |
title_short |
Relative growth of freshwater prawn Macrobrachium brasiliense (Decapoda, Palaemonidae) and its implications for reproduction |
title_full |
Relative growth of freshwater prawn Macrobrachium brasiliense (Decapoda, Palaemonidae) and its implications for reproduction |
title_fullStr |
Relative growth of freshwater prawn Macrobrachium brasiliense (Decapoda, Palaemonidae) and its implications for reproduction |
title_full_unstemmed |
Relative growth of freshwater prawn Macrobrachium brasiliense (Decapoda, Palaemonidae) and its implications for reproduction |
title_sort |
Relative growth of freshwater prawn Macrobrachium brasiliense (Decapoda, Palaemonidae) and its implications for reproduction |
author |
Nogueira, Caio dos Santos [UNESP] |
author_facet |
Nogueira, Caio dos Santos [UNESP] Oliveira, Marcela Silvano de Jacobucci, Giuliano Buza Almeida, Ariadine Cristine de |
author_role |
author |
author2 |
Oliveira, Marcela Silvano de Jacobucci, Giuliano Buza Almeida, Ariadine Cristine de |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Universidade Federal de Uberlândia (UFU) |
dc.contributor.author.fl_str_mv |
Nogueira, Caio dos Santos [UNESP] Oliveira, Marcela Silvano de Jacobucci, Giuliano Buza Almeida, Ariadine Cristine de |
dc.subject.por.fl_str_mv |
Allometry morphological sexual maturity reproductive biology |
topic |
Allometry morphological sexual maturity reproductive biology |
description |
The main objective of this study was to estimate the morphological sexual maturity of Macrobrachium brasiliense (Heller, 1862) and to analyze the relative growth of the species. During one year of sampling, from July 2012 to June 2013, 199 specimens were collected in a stream located in a Cerrado biome, in the Triangulo Mineiro region, state of Minas Gerais. Once identified and sexed, the length of the carapace, the length of the segments of the chelipeds (ischium, merus, carpus, propodus and dactyl) and width of the pleura were measured (mm). The maximum and mean sizes of the carapace length measured 20.5 mm (Mean: 9.6 +/- 4.2 mm) and 20.1 mm (Mean: 7.7 +/- 3.4 mm) for males and females, respectively. The propodus length for males, and the pleura width for females, were used for the classification of the specimens into juvenile and adult, using K-means analysis and discriminant analysis. The relative growth of the species was also evaluated through covariance analysis for all structures (ANCOVA, alpha = 0.05). In females, the growth of most structures occurred equally between juveniles and adults, with the exception of the merus and pleura structures. On the other hand, the growth of almost all structures of males differed between juveniles and adults. Only the carpus and the pleura growth were similar. We also estimated the size at onset of morphological sexual maturity at 8.64 mm CL for males (CL50%,r = 1.71) and 8.03 mm CL for females (CL50%, r = 0.07). Our results contribute to the understanding of some important questions related to the reproductive biology of M. brasiliense. We noted that males grow differently from females and become the largest individuals in the population, resulting in a sexual dimorphism. Such sexual dimorphism might promote the development of the temporary mating guarding behavior, a reproductive strategy very important for caridean shrimps. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-10-04T12:35:14Z 2019-10-04T12:35:14Z 2019-01-01 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1590/1678-4766e2019005 Iheringia Serie Zoologia. Porto Alegre: Fundacao Zoobotanica Rio Grande Sul, Museu Ciencias Naturais, v. 109, 8 p., 2019. 0073-4721 http://hdl.handle.net/11449/185407 10.1590/1678-4766e2019005 S0073-47212019000100205 WOS:000457862800001 S0073-47212019000100205.pdf |
url |
http://dx.doi.org/10.1590/1678-4766e2019005 http://hdl.handle.net/11449/185407 |
identifier_str_mv |
Iheringia Serie Zoologia. Porto Alegre: Fundacao Zoobotanica Rio Grande Sul, Museu Ciencias Naturais, v. 109, 8 p., 2019. 0073-4721 10.1590/1678-4766e2019005 S0073-47212019000100205 WOS:000457862800001 S0073-47212019000100205.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Iheringia Serie Zoologia |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
8 application/pdf |
dc.publisher.none.fl_str_mv |
Fundacao Zoobotanica Rio Grande Sul, Museu Ciencias Naturais |
publisher.none.fl_str_mv |
Fundacao Zoobotanica Rio Grande Sul, Museu Ciencias Naturais |
dc.source.none.fl_str_mv |
Web of Science reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
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1808128534224306176 |