Biologia populacional e reprodutiva e padrão de ocupação de conchas de gastrópodos por Clibanarius antillensis Stimpson, 1859 (Crustacea: Decapoda: Diogenidae) na praia de Baixa Grande (Areia Branca/RN)
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Tipo de documento: | Dissertação |
Idioma: | por |
Título da fonte: | Biblioteca Digital de Teses e Dissertações da UFERSA |
Texto Completo: | https://repositorio.ufersa.edu.br/handle/tede/646 |
Resumo: | The purpose of this study was providing population biology and reproduction data and to determine the shell utilization pattern of Clibanarius antillensis at Baixa Grande Beach, State of Rio Grande do Norte, Brazil (4°57’22”S / 37°08’13”W), using the percentage of the different shell type that were occupied and the morphometric relationship between hermit crabs and occupied shells. Specimens were collected at two-months intervals from October 2012 to August 2013, using sampling effort of two collectors for 1 hour during spring low tides. The hermit crabs collected were identified and had their carapace shield length measured (mm). All occupied gastropod shells were identified and had their shell biometric parameters (aperture width, aperture length and internal volume) measured (mm). A total of 576 individuals ofClibanarius antillensis was obtained of which 191 were males (33.16%), 140 nonovigerous females (24.31%), 125 intersex (21.70%) and 120 ovigerous females (20.83%), using seven species of gastropods. Cerithium atratum and Stramonita haemastoma were the most occupied shells, with 69.97%, and 24.31%, respectively. The average size of male ranged from 1.43 to 9.64 mm of CEC (4.29 ± 1.56 mm); 1.6 to 6.88 mm for non ovigerous females (3.79 ± 1.18 mm); 1.42 to 8.38 mm for intersex (3.69 ± 1.36 mm) and 2.1 to 7.27 mm for ovigerous females (3.76 ± 1.09 mm). Sexual dimorphism was recorded by the larger average size attained by males in relation to females (ovigerous and non-ovigerous) and intersexes. The shells of C. atratum had higher frequency of occupation by smaller organisms, especially in the size class 3.00 -] 4.00mm, while Stramonita haemastoma housed larger organisms, predominantly in the size class 4,00--] 5.00mm. There were differences in the pattern of occupation by males, not ovigerous females, intersex and ovigerous females. Males were significantly higher than the other categories. The size difference strongly influenced the shell utilization pattern, principaly in S. haemastoma, which has the largest Shell volume, being preffered by males. The other categories have occupied most significantly shells of C. atratum due to small size and lower width of the apperture width and length of the shells. Annual size-frequency distirbutions were unimodal, with non-normal distribution. The overall sex ratio was 1: 1.36 (M: F) and did not differ significantly from the expected sex ratio of 1: 1. Ovigerous females were present in all year-round. The fecundity of the studied population was of 178.14, with an average number of eggs of 178.14 ± 85.61 ranging from 51 eggs (CEC = 3.21 xvi mm) to 325 eggs (CEC = 6.77 mm), being much smaller than that of subtropical popultions of this species. The regression analysis shows that the number of eggs increase linearly with the increase of crabs shield lenght and internal volume of shells. Regression analysis showed a positive correlation between the dimensions of hermit crabs and the utilized shells. In this study, occupation by C. antillensis varied as a function of shell morphometric charactistic, with intraspecific differences in occupation partterns also occuring at Baixa Grande Beach |
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Bezerra, Luis Ernesto ArrudaMartins, Inês Xavierhttp://lattes.cnpq.br/3631584372477943Costa, Rodrigo Silva dahttp://lattes.cnpq.br/436220779889172707159423445http://lattes.cnpq.br/7656653126008355http://lattes.cnpq.br/6609717329301035Moura, Nayara Gurgel de2017-04-13T14:59:49Z2016-03-11MOURA, Nayara Gurgel de. Biologia populacional e reprodutiva e padrão de ocupação de conchas de gastrópodos por Clibanarius antillensis Stimpson, 1859 (Crustacea: Decapoda: Diogenidae) na praia de Baixa Grande (Areia Branca/RN). 2016. 103 f. Dissertação (Mestrado) - Curso de Pós-graduação em Ecologia e Conservação, Universidade Federal Rural do Semi-Árido, Mossoró, 2016.https://repositorio.ufersa.edu.br/handle/tede/646The purpose of this study was providing population biology and reproduction data and to determine the shell utilization pattern of Clibanarius antillensis at Baixa Grande Beach, State of Rio Grande do Norte, Brazil (4°57’22”S / 37°08’13”W), using the percentage of the different shell type that were occupied and the morphometric relationship between hermit crabs and occupied shells. Specimens were collected at two-months intervals from October 2012 to August 2013, using sampling effort of two collectors for 1 hour during spring low tides. The hermit crabs collected were identified and had their carapace shield length measured (mm). All occupied gastropod shells were identified and had their shell biometric parameters (aperture width, aperture length and internal volume) measured (mm). A total of 576 individuals ofClibanarius antillensis was obtained of which 191 were males (33.16%), 140 nonovigerous females (24.31%), 125 intersex (21.70%) and 120 ovigerous females (20.83%), using seven species of gastropods. Cerithium atratum and Stramonita haemastoma were the most occupied shells, with 69.97%, and 24.31%, respectively. The average size of male ranged from 1.43 to 9.64 mm of CEC (4.29 ± 1.56 mm); 1.6 to 6.88 mm for non ovigerous females (3.79 ± 1.18 mm); 1.42 to 8.38 mm for intersex (3.69 ± 1.36 mm) and 2.1 to 7.27 mm for ovigerous females (3.76 ± 1.09 mm). Sexual dimorphism was recorded by the larger average size attained by males in relation to females (ovigerous and non-ovigerous) and intersexes. The shells of C. atratum had higher frequency of occupation by smaller organisms, especially in the size class 3.00 -] 4.00mm, while Stramonita haemastoma housed larger organisms, predominantly in the size class 4,00--] 5.00mm. There were differences in the pattern of occupation by males, not ovigerous females, intersex and ovigerous females. Males were significantly higher than the other categories. The size difference strongly influenced the shell utilization pattern, principaly in S. haemastoma, which has the largest Shell volume, being preffered by males. The other categories have occupied most significantly shells of C. atratum due to small size and lower width of the apperture width and length of the shells. Annual size-frequency distirbutions were unimodal, with non-normal distribution. The overall sex ratio was 1: 1.36 (M: F) and did not differ significantly from the expected sex ratio of 1: 1. Ovigerous females were present in all year-round. The fecundity of the studied population was of 178.14, with an average number of eggs of 178.14 ± 85.61 ranging from 51 eggs (CEC = 3.21 xvi mm) to 325 eggs (CEC = 6.77 mm), being much smaller than that of subtropical popultions of this species. The regression analysis shows that the number of eggs increase linearly with the increase of crabs shield lenght and internal volume of shells. Regression analysis showed a positive correlation between the dimensions of hermit crabs and the utilized shells. In this study, occupation by C. antillensis varied as a function of shell morphometric charactistic, with intraspecific differences in occupation partterns also occuring at Baixa Grande BeachO objetivo desse estudo foi fornecer dados populacionais e reprodutivos da espécie de caranguejo-eremita Clibanarius antillensis Stimpson, 1859, e definir sua preferência na ocupação de conchas de gastrópodos nos recifes de arenito, da praia de Baixa Grande, Areia Branca, Rio Grande do Norte (4°57’22”S / 37°08’13”W). As coletas foram realizadas a cada dois meses, de outubro de 2012 a agosto de 2013, utilizando esforço amostral de dois coletores por hora durante as marés baixas de sizígia. Os caranguejos-eremitas foram coletados manualmente e, em laboratório, as conchas dos moluscos e os exemplares de anomuros foram identificados e medidos. Um total de 576 indivíduos foram coletados, sendo 191 machos (33,16%), 140 fêmeas não ovígeras (24,31%), 125 intersexos (21,70%) e 120 fêmeas ovígeras (20,83%), ocupando 7 espécies de gastrópodos, sendo Cerithium atratum a mais ocupada (69,97%), seguida de Stramonita haemastoma (24,31%), Pisania pusio (1,22 %), Leucozonia nassa (3,47%), Tegula viridula (0,52%), Anachis obesa (0,35%) e Olivella minuta (0,17%). O tamanho médio dos indivíduos machos variou de 1,43 a 9,64 mm de CEC (média de 4,29 1,56 mm); de 1,6 a 6,88 mm de CEC para as fêmeas não ovígeras (3,79 1,18 mm); de 1,42 a 8,38 mm de CEC para os intersexos (3,69 1,36 mm) e de 2,1 a 7,27 mm de CEC para as fêmeas ovígeras (3,76 1,09 mm). A população apresentou dimorfismo sexual quanto ao tamanho, sendo os machos significativamente maiores do que demais categorias. Os machos ocorreram em 10 classes de tamanho, os intersexos em nove enquanto as fêmeas (ovígeras e não-ovígeras) ocorrem em apenas seis classes. Houve diferença também no padrão de ocupação de conchas. As conchas de S. haemastoma foram preferidas por machos, devido às maiores dimensões de comprimento e largura da abertura da concha, e espaço internodessas conchas. As demais categorias ocuparam mais significativamente conchas de C. atratum, devido ao seu tamanho reduzido e medidas da abertura de concha menores, promovendo maior proteção contra estresses ambientais e bióticos. As conchas de C. atratum tiveram maior frequência de ocupação por organismos menores, principalmente na classe de tamanho 3,00--]4,00 mm, enquanto S. haemastoma abrigou organismos maiores, com predominância na classe de tamanho 4,00--]5,00 mm. A distribuição da população nas classes de tamanho foi unimodal, com distribuição não normal (KS = 0,15; p <0,001), o que reflete um recrutamento contínuo ao longo do ano. A razão xiv sexual total foi de 1: 1,36 (M:F) e não diferiu significativamente da razão sexual esperada de 1:1. As fêmeas ovígeras estiveram presentes em todos os meses amostrados. O índice de fecundidade média foi de 178,14, com número médio de ovos de 178,14 85,61 variando de 51 ovos (CEC = 3,21 mm) a 325 ovos (CEC = 6,77 mm). Existe uma correlação positiva entre o tamanho do escudo cefalotorácico e do volume interno da concha com o número de ovos, sendo que a primeira é a que mais explica a variação na quantidade de ovos.Ao analisar as medidas do comprimento da abertura, largura da abertura e volume interno das conchas elas mostraram uma correlação positiva com o tamanho dos caranguejos-eremitasCoordenação de Aperfeiçoamento de Pessoal de Nível Superior2017-03-23application/pdfhttp://repositorio.ufersa.edu.br/retrieve/1533/NayaraGM_DISSERT.pdf.jpgporUniversidade Federal Rural do Semi-ÁridoPrograma de Pós-Graduação em Ecologia e ConservaçãoUFERSABrasilCC-BY-SAinfo:eu-repo/semantics/openAccessCaranguejo-eremitaEstrutura populacionalReproduçãoRazão sexualClasses de tamanhoUtilização de conchasGastropodaMudanças climáticasHermit crabPopulation structureReproductionSex ratioSize classesShellGastropodClimate changesCNPQ::CIENCIAS BIOLOGICAS::ECOLOGIABiologia populacional e reprodutiva e padrão de ocupação de conchas de gastrópodos por Clibanarius antillensis Stimpson, 1859 (Crustacea: Decapoda: Diogenidae) na praia de Baixa Grande (Areia Branca/RN)info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisreponame:Biblioteca Digital de Teses e Dissertações da UFERSAinstname:Universidade Federal Rural do Semi-Árido (UFERSA)instacron:UFERSAORIGINALNayaraGM_DISSERT.pdfNayaraGM_DISSERT.pdfapplication/pdf2481190https://repositorio.ufersa.edu.br//bitstream/tede/646/1/NayaraGM_DISSERT.pdfb1ca8d847270148db31443c379c38868MD51LICENSElicense.txtlicense.txttext/plain; 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dc.title.por.fl_str_mv |
Biologia populacional e reprodutiva e padrão de ocupação de conchas de gastrópodos por Clibanarius antillensis Stimpson, 1859 (Crustacea: Decapoda: Diogenidae) na praia de Baixa Grande (Areia Branca/RN) |
title |
Biologia populacional e reprodutiva e padrão de ocupação de conchas de gastrópodos por Clibanarius antillensis Stimpson, 1859 (Crustacea: Decapoda: Diogenidae) na praia de Baixa Grande (Areia Branca/RN) |
spellingShingle |
Biologia populacional e reprodutiva e padrão de ocupação de conchas de gastrópodos por Clibanarius antillensis Stimpson, 1859 (Crustacea: Decapoda: Diogenidae) na praia de Baixa Grande (Areia Branca/RN) Moura, Nayara Gurgel de Caranguejo-eremita Estrutura populacional Reprodução Razão sexual Classes de tamanho Utilização de conchas Gastropoda Mudanças climáticas Hermit crab Population structure Reproduction Sex ratio Size classes Shell Gastropod Climate changes CNPQ::CIENCIAS BIOLOGICAS::ECOLOGIA |
title_short |
Biologia populacional e reprodutiva e padrão de ocupação de conchas de gastrópodos por Clibanarius antillensis Stimpson, 1859 (Crustacea: Decapoda: Diogenidae) na praia de Baixa Grande (Areia Branca/RN) |
title_full |
Biologia populacional e reprodutiva e padrão de ocupação de conchas de gastrópodos por Clibanarius antillensis Stimpson, 1859 (Crustacea: Decapoda: Diogenidae) na praia de Baixa Grande (Areia Branca/RN) |
title_fullStr |
Biologia populacional e reprodutiva e padrão de ocupação de conchas de gastrópodos por Clibanarius antillensis Stimpson, 1859 (Crustacea: Decapoda: Diogenidae) na praia de Baixa Grande (Areia Branca/RN) |
title_full_unstemmed |
Biologia populacional e reprodutiva e padrão de ocupação de conchas de gastrópodos por Clibanarius antillensis Stimpson, 1859 (Crustacea: Decapoda: Diogenidae) na praia de Baixa Grande (Areia Branca/RN) |
title_sort |
Biologia populacional e reprodutiva e padrão de ocupação de conchas de gastrópodos por Clibanarius antillensis Stimpson, 1859 (Crustacea: Decapoda: Diogenidae) na praia de Baixa Grande (Areia Branca/RN) |
author |
Moura, Nayara Gurgel de |
author_facet |
Moura, Nayara Gurgel de |
author_role |
author |
dc.contributor.authorID.por.fl_str_mv |
07159423445 |
dc.contributor.authorLattes.por.fl_str_mv |
http://lattes.cnpq.br/7656653126008355 |
dc.contributor.advisorLattes.por.fl_str_mv |
http://lattes.cnpq.br/6609717329301035 |
dc.contributor.advisor1.fl_str_mv |
Bezerra, Luis Ernesto Arruda |
dc.contributor.referee1.fl_str_mv |
Martins, Inês Xavier |
dc.contributor.referee1Lattes.fl_str_mv |
http://lattes.cnpq.br/3631584372477943 |
dc.contributor.referee2.fl_str_mv |
Costa, Rodrigo Silva da |
dc.contributor.referee2Lattes.fl_str_mv |
http://lattes.cnpq.br/4362207798891727 |
dc.contributor.author.fl_str_mv |
Moura, Nayara Gurgel de |
contributor_str_mv |
Bezerra, Luis Ernesto Arruda Martins, Inês Xavier Costa, Rodrigo Silva da |
dc.subject.por.fl_str_mv |
Caranguejo-eremita Estrutura populacional Reprodução Razão sexual Classes de tamanho Utilização de conchas Gastropoda Mudanças climáticas Hermit crab Population structure Reproduction Sex ratio Size classes Shell Gastropod Climate changes |
topic |
Caranguejo-eremita Estrutura populacional Reprodução Razão sexual Classes de tamanho Utilização de conchas Gastropoda Mudanças climáticas Hermit crab Population structure Reproduction Sex ratio Size classes Shell Gastropod Climate changes CNPQ::CIENCIAS BIOLOGICAS::ECOLOGIA |
dc.subject.cnpq.fl_str_mv |
CNPQ::CIENCIAS BIOLOGICAS::ECOLOGIA |
description |
The purpose of this study was providing population biology and reproduction data and to determine the shell utilization pattern of Clibanarius antillensis at Baixa Grande Beach, State of Rio Grande do Norte, Brazil (4°57’22”S / 37°08’13”W), using the percentage of the different shell type that were occupied and the morphometric relationship between hermit crabs and occupied shells. Specimens were collected at two-months intervals from October 2012 to August 2013, using sampling effort of two collectors for 1 hour during spring low tides. The hermit crabs collected were identified and had their carapace shield length measured (mm). All occupied gastropod shells were identified and had their shell biometric parameters (aperture width, aperture length and internal volume) measured (mm). A total of 576 individuals ofClibanarius antillensis was obtained of which 191 were males (33.16%), 140 nonovigerous females (24.31%), 125 intersex (21.70%) and 120 ovigerous females (20.83%), using seven species of gastropods. Cerithium atratum and Stramonita haemastoma were the most occupied shells, with 69.97%, and 24.31%, respectively. The average size of male ranged from 1.43 to 9.64 mm of CEC (4.29 ± 1.56 mm); 1.6 to 6.88 mm for non ovigerous females (3.79 ± 1.18 mm); 1.42 to 8.38 mm for intersex (3.69 ± 1.36 mm) and 2.1 to 7.27 mm for ovigerous females (3.76 ± 1.09 mm). Sexual dimorphism was recorded by the larger average size attained by males in relation to females (ovigerous and non-ovigerous) and intersexes. The shells of C. atratum had higher frequency of occupation by smaller organisms, especially in the size class 3.00 -] 4.00mm, while Stramonita haemastoma housed larger organisms, predominantly in the size class 4,00--] 5.00mm. There were differences in the pattern of occupation by males, not ovigerous females, intersex and ovigerous females. Males were significantly higher than the other categories. The size difference strongly influenced the shell utilization pattern, principaly in S. haemastoma, which has the largest Shell volume, being preffered by males. The other categories have occupied most significantly shells of C. atratum due to small size and lower width of the apperture width and length of the shells. Annual size-frequency distirbutions were unimodal, with non-normal distribution. The overall sex ratio was 1: 1.36 (M: F) and did not differ significantly from the expected sex ratio of 1: 1. Ovigerous females were present in all year-round. The fecundity of the studied population was of 178.14, with an average number of eggs of 178.14 ± 85.61 ranging from 51 eggs (CEC = 3.21 xvi mm) to 325 eggs (CEC = 6.77 mm), being much smaller than that of subtropical popultions of this species. The regression analysis shows that the number of eggs increase linearly with the increase of crabs shield lenght and internal volume of shells. Regression analysis showed a positive correlation between the dimensions of hermit crabs and the utilized shells. In this study, occupation by C. antillensis varied as a function of shell morphometric charactistic, with intraspecific differences in occupation partterns also occuring at Baixa Grande Beach |
publishDate |
2016 |
dc.date.issued.fl_str_mv |
2016-03-11 |
dc.date.accessioned.fl_str_mv |
2017-04-13T14:59:49Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
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info:eu-repo/semantics/masterThesis |
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masterThesis |
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publishedVersion |
dc.identifier.citation.fl_str_mv |
MOURA, Nayara Gurgel de. Biologia populacional e reprodutiva e padrão de ocupação de conchas de gastrópodos por Clibanarius antillensis Stimpson, 1859 (Crustacea: Decapoda: Diogenidae) na praia de Baixa Grande (Areia Branca/RN). 2016. 103 f. Dissertação (Mestrado) - Curso de Pós-graduação em Ecologia e Conservação, Universidade Federal Rural do Semi-Árido, Mossoró, 2016. |
dc.identifier.uri.fl_str_mv |
https://repositorio.ufersa.edu.br/handle/tede/646 |
identifier_str_mv |
MOURA, Nayara Gurgel de. Biologia populacional e reprodutiva e padrão de ocupação de conchas de gastrópodos por Clibanarius antillensis Stimpson, 1859 (Crustacea: Decapoda: Diogenidae) na praia de Baixa Grande (Areia Branca/RN). 2016. 103 f. Dissertação (Mestrado) - Curso de Pós-graduação em Ecologia e Conservação, Universidade Federal Rural do Semi-Árido, Mossoró, 2016. |
url |
https://repositorio.ufersa.edu.br/handle/tede/646 |
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por |
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por |
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CC-BY-SA info:eu-repo/semantics/openAccess |
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CC-BY-SA |
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openAccess |
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application/pdf |
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Universidade Federal Rural do Semi-Árido |
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Programa de Pós-Graduação em Ecologia e Conservação |
dc.publisher.initials.fl_str_mv |
UFERSA |
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Brasil |
publisher.none.fl_str_mv |
Universidade Federal Rural do Semi-Árido |
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UFERSA |
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