Temporal analysis of the weight/carapace width relationship and the condition factor in Uca mordax (Smith, 1870) (Crustacea, Decapoda, Ocypodidae) in the Igaraçu River, Parnaíba, PI, Brazil
Autor(a) principal: | |
---|---|
Data de Publicação: | 2016 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Biotemas (Online) |
Texto Completo: | https://periodicos.ufsc.br/index.php/biotemas/article/view/2175-7925.2016v29n1p47 |
Resumo: | Crabs of the genus Uca Leach, 1814 are widely distributed along the Brazilian coast and play an important ecological role in the estuarine ecosystem in soil bioturbation, nutrient cycling and by serving as a food source for other organisms. This study analyzed the relationship of wet weight/carapace width and the temporal dynamics of the condition factor of the crab Uca mordax (Smith, 1870). The crabs were sampled manually on the bank of the Igaraçu River (02°53’58”S; 41°46’49”W) from September 2009 to June 2011, in the dry and rainy seasons. A total of 602 crabs (449 males and 153 females) were analyzed. The carapace width (CW) and the wet weight (WW) were determined for each individual. The biometric data obtained were submitted to a regression analysis using the power equation (y=axb). The CW/WW relationship for males was expressed by the equation WW=0.00011CW3.441, and for females by WW=0.000183.211. The condition factor was determined for each month and compared between the sexes. The females showed a 1.6 higher degree of fattening than the males. In the rainy season the females showed an isometric increase in weight, while the other relationships (males during the dry and rainy seasons and females in the dry season) showed a positive allometric increase. There was no significant difference in the degree of fattening between males and females. |
id |
UFSC-14_e9dfa3733983cd6de1ba35774d7dcbc2 |
---|---|
oai_identifier_str |
oai:periodicos.ufsc.br:article/40515 |
network_acronym_str |
UFSC-14 |
network_name_str |
Biotemas (Online) |
repository_id_str |
|
spelling |
Temporal analysis of the weight/carapace width relationship and the condition factor in Uca mordax (Smith, 1870) (Crustacea, Decapoda, Ocypodidae) in the Igaraçu River, Parnaíba, PI, BrazilAnálise temporal da relação peso/largura de carapaça e fator de condição em Uca mordax (Smith, 1870) (Crustacea, Decapoda, Ocypodidae) no Rio Igaraçu, Parnaíba, PI, BrasilCrabs of the genus Uca Leach, 1814 are widely distributed along the Brazilian coast and play an important ecological role in the estuarine ecosystem in soil bioturbation, nutrient cycling and by serving as a food source for other organisms. This study analyzed the relationship of wet weight/carapace width and the temporal dynamics of the condition factor of the crab Uca mordax (Smith, 1870). The crabs were sampled manually on the bank of the Igaraçu River (02°53’58”S; 41°46’49”W) from September 2009 to June 2011, in the dry and rainy seasons. A total of 602 crabs (449 males and 153 females) were analyzed. The carapace width (CW) and the wet weight (WW) were determined for each individual. The biometric data obtained were submitted to a regression analysis using the power equation (y=axb). The CW/WW relationship for males was expressed by the equation WW=0.00011CW3.441, and for females by WW=0.000183.211. The condition factor was determined for each month and compared between the sexes. The females showed a 1.6 higher degree of fattening than the males. In the rainy season the females showed an isometric increase in weight, while the other relationships (males during the dry and rainy seasons and females in the dry season) showed a positive allometric increase. There was no significant difference in the degree of fattening between males and females.Os caranguejos do gênero Uca Leach, 1814 são amplamente distribuídos na costa brasileira e desempenham importante papel ecológico no ecossistema estuarino na bioturbação do solo, ciclagem de nutrientes e servindo como fonte de alimento para outros organismos. Este estudo objetiva analisar a relação peso úmido/largura da carapaça e a dinâmica temporal do fator de condição do caranguejo Uca mordax (Smith, 1870). Os caranguejos foram coletados manualmente na margem do Rio Igaraçu (02°53’58”S; 41°46’49”W), de setembro de 2009 a junho de 2011, no período seco e chuvoso da região. Foram analisados 602 caranguejos (449 machos e 153 fêmeas). Determinou-se a largura da carapaça (LC) e o peso úmido (PU) de cada indivíduo. Os dados biométricos obtidos foram submetidos a uma regressão, por meio do software REGRANS, utilizando-se a equação do tipo potência (y = axb). A relação PU/LC para os machos foi expressa pela equação PU = 0,00011LC3,441, e para as fêmeas por PU = 0,00018LC3,211. O fator de condição foi determinado para cada mês de coleta, e comparado entre os sexos. As fêmeas apresentaram o grau de engorda cerca de 1,6 vezes maior que o dos machos. No período chuvoso as fêmeas apresentam um crescimento em peso do tipo isométrico, enquanto as demais relações (machos no período seco e chuvoso, e fêmeas no período seco) apresentaram crescimento alométrico positivo. Não houve diferença signiicativa entre o grau de engorda de machos e fêmeas. Universidade Federal de Santa Catarina2016-02-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.ufsc.br/index.php/biotemas/article/view/2175-7925.2016v29n1p4710.5007/2175-7925.2016v29n1p47Biotemas; v. 29 n. 1 (2016); 47-532175-79250103-1643reponame:Biotemas (Online)instname:Universidade Federal de Santa Catarina (UFSC)instacron:UFSCenghttps://periodicos.ufsc.br/index.php/biotemas/article/view/2175-7925.2016v29n1p47/31242Copyright (c) 2016 Luiz Gonzaga Alves dos Santos Filho, Sidely Gil Alves Vieira dos Santos, João Marcos de Góes, Lissandra Corrêa Fernandes-Góesinfo:eu-repo/semantics/openAccessAlves dos Santos Filho, Luiz GonzagaAlves Vieira dos Santos, Sidely Gilde Góes, João MarcosFernandes-Góes, Lissandra Corrêa2017-10-18T19:01:21Zoai:periodicos.ufsc.br:article/40515Revistahttp://www.biotemas.ufsc.br/index.htmPUBhttps://periodicos.ufsc.br/index.php/biotemas/oai||carlospinto@ccb.ufsc.br2175-79250103-1643opendoar:2017-10-18T19:01:21Biotemas (Online) - Universidade Federal de Santa Catarina (UFSC)false |
dc.title.none.fl_str_mv |
Temporal analysis of the weight/carapace width relationship and the condition factor in Uca mordax (Smith, 1870) (Crustacea, Decapoda, Ocypodidae) in the Igaraçu River, Parnaíba, PI, Brazil Análise temporal da relação peso/largura de carapaça e fator de condição em Uca mordax (Smith, 1870) (Crustacea, Decapoda, Ocypodidae) no Rio Igaraçu, Parnaíba, PI, Brasil |
title |
Temporal analysis of the weight/carapace width relationship and the condition factor in Uca mordax (Smith, 1870) (Crustacea, Decapoda, Ocypodidae) in the Igaraçu River, Parnaíba, PI, Brazil |
spellingShingle |
Temporal analysis of the weight/carapace width relationship and the condition factor in Uca mordax (Smith, 1870) (Crustacea, Decapoda, Ocypodidae) in the Igaraçu River, Parnaíba, PI, Brazil Alves dos Santos Filho, Luiz Gonzaga |
title_short |
Temporal analysis of the weight/carapace width relationship and the condition factor in Uca mordax (Smith, 1870) (Crustacea, Decapoda, Ocypodidae) in the Igaraçu River, Parnaíba, PI, Brazil |
title_full |
Temporal analysis of the weight/carapace width relationship and the condition factor in Uca mordax (Smith, 1870) (Crustacea, Decapoda, Ocypodidae) in the Igaraçu River, Parnaíba, PI, Brazil |
title_fullStr |
Temporal analysis of the weight/carapace width relationship and the condition factor in Uca mordax (Smith, 1870) (Crustacea, Decapoda, Ocypodidae) in the Igaraçu River, Parnaíba, PI, Brazil |
title_full_unstemmed |
Temporal analysis of the weight/carapace width relationship and the condition factor in Uca mordax (Smith, 1870) (Crustacea, Decapoda, Ocypodidae) in the Igaraçu River, Parnaíba, PI, Brazil |
title_sort |
Temporal analysis of the weight/carapace width relationship and the condition factor in Uca mordax (Smith, 1870) (Crustacea, Decapoda, Ocypodidae) in the Igaraçu River, Parnaíba, PI, Brazil |
author |
Alves dos Santos Filho, Luiz Gonzaga |
author_facet |
Alves dos Santos Filho, Luiz Gonzaga Alves Vieira dos Santos, Sidely Gil de Góes, João Marcos Fernandes-Góes, Lissandra Corrêa |
author_role |
author |
author2 |
Alves Vieira dos Santos, Sidely Gil de Góes, João Marcos Fernandes-Góes, Lissandra Corrêa |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Alves dos Santos Filho, Luiz Gonzaga Alves Vieira dos Santos, Sidely Gil de Góes, João Marcos Fernandes-Góes, Lissandra Corrêa |
description |
Crabs of the genus Uca Leach, 1814 are widely distributed along the Brazilian coast and play an important ecological role in the estuarine ecosystem in soil bioturbation, nutrient cycling and by serving as a food source for other organisms. This study analyzed the relationship of wet weight/carapace width and the temporal dynamics of the condition factor of the crab Uca mordax (Smith, 1870). The crabs were sampled manually on the bank of the Igaraçu River (02°53’58”S; 41°46’49”W) from September 2009 to June 2011, in the dry and rainy seasons. A total of 602 crabs (449 males and 153 females) were analyzed. The carapace width (CW) and the wet weight (WW) were determined for each individual. The biometric data obtained were submitted to a regression analysis using the power equation (y=axb). The CW/WW relationship for males was expressed by the equation WW=0.00011CW3.441, and for females by WW=0.000183.211. The condition factor was determined for each month and compared between the sexes. The females showed a 1.6 higher degree of fattening than the males. In the rainy season the females showed an isometric increase in weight, while the other relationships (males during the dry and rainy seasons and females in the dry season) showed a positive allometric increase. There was no significant difference in the degree of fattening between males and females. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-02-05 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://periodicos.ufsc.br/index.php/biotemas/article/view/2175-7925.2016v29n1p47 10.5007/2175-7925.2016v29n1p47 |
url |
https://periodicos.ufsc.br/index.php/biotemas/article/view/2175-7925.2016v29n1p47 |
identifier_str_mv |
10.5007/2175-7925.2016v29n1p47 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://periodicos.ufsc.br/index.php/biotemas/article/view/2175-7925.2016v29n1p47/31242 |
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. 29 n. 1 (2016); 47-53 2175-7925 0103-1643 reponame:Biotemas (Online) instname:Universidade Federal de Santa Catarina (UFSC) instacron:UFSC |
instname_str |
Universidade Federal de Santa Catarina (UFSC) |
instacron_str |
UFSC |
institution |
UFSC |
reponame_str |
Biotemas (Online) |
collection |
Biotemas (Online) |
repository.name.fl_str_mv |
Biotemas (Online) - Universidade Federal de Santa Catarina (UFSC) |
repository.mail.fl_str_mv |
||carlospinto@ccb.ufsc.br |
_version_ |
1799940553903702016 |