Importância do prado de capim marinho (Halodule writhii Aschers) na composição da fauna de Crustacea Brachyura e na dinâmica trófica das espécies de Callinectes (Crustacea, Portunidae) na ilha de Itamaracá - Pernambuco - Brasil

Detalhes bibliográficos
Autor(a) principal: Moura, Noely Fabiana Oliveira de
Data de Publicação: 2006
Tipo de documento: Tese
Idioma: por
Título da fonte: Repositório Institucional da UFSCAR
Texto Completo: https://repositorio.ufscar.br/handle/ufscar/1583
Resumo: With aim to know the community structure of the Crustacea Brachyura and analyze the trophic dynamics of the species Callinectes dane, C. larvatus e C. ornatus in the seagrass bed of Halodule wrightii Aschers, studies were carried out during a dry period (February, 2001 and September to December, 2001) and the wet period (March to August, 2001) in the Forno da Cal beach, Itamaraca Island, Pernambuco, Brazil. The sampling method adopted was nocturnal trawling on the seagrass using a small (2m width) bottom net with internal mesh of 5mm and external of 2mm. Additional samplings were carried out on a period of 24 hours, in February, May, July, September and December, 2001. Samplings were also carried out on the adjacent sandy flat without vegetation, in March, June, August and December, having as objective to compare the biomass, abundance and diversity of this habitat with the seagrass in this same period. To determinate the gastric evacuation rate in the Callinectes sp., experiment was carried out. The results indicate that the Portunidae family contributed with 93% of the total captures. The species Callinectes ornatus, C. danae, C. larvatus and Portunus ordwayi were the most frequent. The highest density occurred in March, positively correlating with the air temperature, and the highest biomass was observed in July, with a positive correlation to density of cast algae. The seagrass presented the highest averages of densities, biomass, number of species, richness and diversity when compared to the adjacent sandy flat. Even if the number of species observed in the sand is higher, these presented well-distributed in the environment, with equitability value higher than in the seagrass. Animal organic matter, Gastropoda and Macrophyta were the food items that most contributed in the analysis of the stomach content of the species C. danae, C. larvatus and C. ornatus. It was observed that the smallest organisms have fed of small preys and with low mobility, as in the case of highest consume of Polychaeta, Copepoda and Amphipoda by specimens of smaller carapace width. Two feeding rhythms were observed for Callinectes: a diurnal one from 4:00 to 9:00 am and a nocturnal one between 21:00 and 22:00 pm. The evacuation rate (E) obtained by the regression analysis was E = 33.26% VE h-1. The daily ration in the sampled months in the 24-hour analyses was of 798.24% SV (the stomach fullness). After transforming the stomach fullness to somatic weight a day, the observed value was 20.748%.d-1. Then, C. ornatus with weigh of 1 g may consume 0.207 g food/ day. The seagrass bed represented as an important food source to Brachyura s population, due to the diversity of preys and refuge area, not only by the vegetation of seagrass but also by the abundance of cast algae, especially for the species Callinectes danae, C. larvatus and C. ornatus.
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spelling Moura, Noely Fabiana Oliveira deVerani, José Robertohttp://genos.cnpq.br:12010/dwlattes/owa/consultapesq.prc_querylisthttp://lattes.cnpq.br/90838296067140382571c928-c3b1-4f74-a507-a564dc6a21a72016-06-02T19:29:02Z2007-08-212016-06-02T19:29:02Z2006-06-06MOURA, Noely Fabiana Oliveira de. Importância do prado de capim marinho (Halodule writhii Aschers) na composição da fauna de Crustacea Brachyura e na dinâmica trófica das espécies de Callinectes (Crustacea, Portunidae) na ilha de Itamaracá - Pernambuco.. 2006. 90 f. Tese (Doutorado em Ciências Biológicas) - Universidade Federal de São Carlos, São Carlos, 2006.https://repositorio.ufscar.br/handle/ufscar/1583With aim to know the community structure of the Crustacea Brachyura and analyze the trophic dynamics of the species Callinectes dane, C. larvatus e C. ornatus in the seagrass bed of Halodule wrightii Aschers, studies were carried out during a dry period (February, 2001 and September to December, 2001) and the wet period (March to August, 2001) in the Forno da Cal beach, Itamaraca Island, Pernambuco, Brazil. The sampling method adopted was nocturnal trawling on the seagrass using a small (2m width) bottom net with internal mesh of 5mm and external of 2mm. Additional samplings were carried out on a period of 24 hours, in February, May, July, September and December, 2001. Samplings were also carried out on the adjacent sandy flat without vegetation, in March, June, August and December, having as objective to compare the biomass, abundance and diversity of this habitat with the seagrass in this same period. To determinate the gastric evacuation rate in the Callinectes sp., experiment was carried out. The results indicate that the Portunidae family contributed with 93% of the total captures. The species Callinectes ornatus, C. danae, C. larvatus and Portunus ordwayi were the most frequent. The highest density occurred in March, positively correlating with the air temperature, and the highest biomass was observed in July, with a positive correlation to density of cast algae. The seagrass presented the highest averages of densities, biomass, number of species, richness and diversity when compared to the adjacent sandy flat. Even if the number of species observed in the sand is higher, these presented well-distributed in the environment, with equitability value higher than in the seagrass. Animal organic matter, Gastropoda and Macrophyta were the food items that most contributed in the analysis of the stomach content of the species C. danae, C. larvatus and C. ornatus. It was observed that the smallest organisms have fed of small preys and with low mobility, as in the case of highest consume of Polychaeta, Copepoda and Amphipoda by specimens of smaller carapace width. Two feeding rhythms were observed for Callinectes: a diurnal one from 4:00 to 9:00 am and a nocturnal one between 21:00 and 22:00 pm. The evacuation rate (E) obtained by the regression analysis was E = 33.26% VE h-1. The daily ration in the sampled months in the 24-hour analyses was of 798.24% SV (the stomach fullness). After transforming the stomach fullness to somatic weight a day, the observed value was 20.748%.d-1. Then, C. ornatus with weigh of 1 g may consume 0.207 g food/ day. The seagrass bed represented as an important food source to Brachyura s population, due to the diversity of preys and refuge area, not only by the vegetation of seagrass but also by the abundance of cast algae, especially for the species Callinectes danae, C. larvatus and C. ornatus.Com objetivo de conhecer a estrutura da comunidade de Crustacea Brachyura e analisar a dinâmica trófica das espécies Callinectes dane, C. larvatus e C. ornatus no ecossistema de prado de capim marinho Halodule wrightii Aschers foram realizados estudos durante o período seco (fevereiro/2001 e setembro a dezembro/2001) e chuvoso (março a agosto/2001) na praia de Forno da Cal, Ilha de Itamaracá, Pernambuco, Brasil. O método de amostragem foi através de arrastos noturnos sobre o prado marinho com uma draga leve retangular com rede interna de malha de 5mm e externa de 2mm de abertura. Coletas adicionais, no período de 24 horas, foram realizadas em fevereiro, maio, julho, setembro e dezembro de 2001. Em março, junho, agosto e dezembro foram efetuadas também coletas na planície de areia adjacente sem vegetação com o objetivo de comparar a biomassa, abundância e diversidade com o habitat de prado, nesse mesmo período. Para determinação da taxa de evacuação gástrica em Callinectes sp. foi realizado um experimento. Os resultados indicam que a família Portunidae contribuiu com 93% do total de capturas. As espécies Callinectes ornatus, C. danae, C. larvatus e Portunus ordwayi foram as mais freqüentes. A maior densidade de braquiúro foi registrada em março, correlacionando-se positivamente com a temperatura do ar, e a maior biomassa em julho, com uma correlação positiva com a densidade de algas arribadas. O ambiente de prado apresentou as maiores médias de densidade, biomassa, número de espécies, riqueza e diversidade quando comparado a uma planície de areia adjacente. Embora o número de espécies encontradas na areia seja menor, estas se apresentaram bem distribuídas no ambiente, com valor de equitabilidade maior que nos prados. Na análise do conteúdo estomacal de C. danae, C. larvatus e C. ornatus os itens alimentares de maior contribuição foram Matéria Orgânica Animal, Gastropoda e Macrofita. Foi observado que os menores organismos se alimentaram de presas pequenas e de pouca mobilidade, como foi o caso do maior consumo de Polychaeta, Copepoda e Amphipoda por espécimes de menor largura da carapaça. Dois ritmos alimentares foram observados para Callinectes: um diurno das 4:00 ás 9:00 horas e outro noturno entre 21:00 e 22:00 horas. A taxa de evacuação (E) obtida através da análise de regressão linear foi E = 33,26% VE h-1. A ração diária para o total dos meses amostrados nas análises de 24 horas foi de 798,24% SV (volume estomacal máximo). Depois de transformado o volume estomacal máximo para peso somático por dia o valor encontrado foi de 20,748%.d-1 peso somático. Assim, C. ornatus com peso de 1 g consumiria 0,207 g por dia de alimento. Além de área de berçário, visto a captura de assentantes e juvenis, o prado de capim marinho é uma importante fonte de alimentação para a população de Brachyura, por causa da diversidade de presas, e área de refugio, não só pela própria vegetação, mas também pela abundância de algas arribadas, principalmente para as espécies de Callinectes danae, C. larvatus e C. ornatus.application/pdfporUniversidade Federal de São CarlosPrograma de Pós-Graduação em Ecologia e Recursos Naturais - PPGERNUFSCarBRCaranguejoBrachyuraNutriçãoHalodule wrightiiBrachyuraCallinectesHalodule wrightiiFeedingDaily rationCIENCIAS BIOLOGICAS::ECOLOGIAImportância do prado de capim marinho (Halodule writhii Aschers) na composição da fauna de Crustacea Brachyura e na dinâmica trófica das espécies de Callinectes (Crustacea, Portunidae) na ilha de Itamaracá - Pernambuco - Brasilinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesis-1-19d11fa97-c70c-4e91-a649-afc5133839c2info:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFSCARinstname:Universidade Federal de São Carlos (UFSCAR)instacron:UFSCARORIGINALTeseNFOM.pdfapplication/pdf709494https://repositorio.ufscar.br/bitstream/ufscar/1583/1/TeseNFOM.pdf789afd3e9ac18ee02e65bd17427b2035MD51THUMBNAILTeseNFOM.pdf.jpgTeseNFOM.pdf.jpgIM Thumbnailimage/jpeg8636https://repositorio.ufscar.br/bitstream/ufscar/1583/2/TeseNFOM.pdf.jpg45981dc587600a6667e18f45c07d38e2MD52ufscar/15832023-09-18 18:30:45.402oai:repositorio.ufscar.br:ufscar/1583Repositório InstitucionalPUBhttps://repositorio.ufscar.br/oai/requestopendoar:43222023-09-18T18:30:45Repositório Institucional da UFSCAR - Universidade Federal de São Carlos (UFSCAR)false
dc.title.por.fl_str_mv Importância do prado de capim marinho (Halodule writhii Aschers) na composição da fauna de Crustacea Brachyura e na dinâmica trófica das espécies de Callinectes (Crustacea, Portunidae) na ilha de Itamaracá - Pernambuco - Brasil
title Importância do prado de capim marinho (Halodule writhii Aschers) na composição da fauna de Crustacea Brachyura e na dinâmica trófica das espécies de Callinectes (Crustacea, Portunidae) na ilha de Itamaracá - Pernambuco - Brasil
spellingShingle Importância do prado de capim marinho (Halodule writhii Aschers) na composição da fauna de Crustacea Brachyura e na dinâmica trófica das espécies de Callinectes (Crustacea, Portunidae) na ilha de Itamaracá - Pernambuco - Brasil
Moura, Noely Fabiana Oliveira de
Caranguejo
Brachyura
Nutrição
Halodule wrightii
Brachyura
Callinectes
Halodule wrightii
Feeding
Daily ration
CIENCIAS BIOLOGICAS::ECOLOGIA
title_short Importância do prado de capim marinho (Halodule writhii Aschers) na composição da fauna de Crustacea Brachyura e na dinâmica trófica das espécies de Callinectes (Crustacea, Portunidae) na ilha de Itamaracá - Pernambuco - Brasil
title_full Importância do prado de capim marinho (Halodule writhii Aschers) na composição da fauna de Crustacea Brachyura e na dinâmica trófica das espécies de Callinectes (Crustacea, Portunidae) na ilha de Itamaracá - Pernambuco - Brasil
title_fullStr Importância do prado de capim marinho (Halodule writhii Aschers) na composição da fauna de Crustacea Brachyura e na dinâmica trófica das espécies de Callinectes (Crustacea, Portunidae) na ilha de Itamaracá - Pernambuco - Brasil
title_full_unstemmed Importância do prado de capim marinho (Halodule writhii Aschers) na composição da fauna de Crustacea Brachyura e na dinâmica trófica das espécies de Callinectes (Crustacea, Portunidae) na ilha de Itamaracá - Pernambuco - Brasil
title_sort Importância do prado de capim marinho (Halodule writhii Aschers) na composição da fauna de Crustacea Brachyura e na dinâmica trófica das espécies de Callinectes (Crustacea, Portunidae) na ilha de Itamaracá - Pernambuco - Brasil
author Moura, Noely Fabiana Oliveira de
author_facet Moura, Noely Fabiana Oliveira de
author_role author
dc.contributor.authorlattes.por.fl_str_mv http://lattes.cnpq.br/9083829606714038
dc.contributor.author.fl_str_mv Moura, Noely Fabiana Oliveira de
dc.contributor.advisor1.fl_str_mv Verani, José Roberto
dc.contributor.advisor1Lattes.fl_str_mv http://genos.cnpq.br:12010/dwlattes/owa/consultapesq.prc_querylist
dc.contributor.authorID.fl_str_mv 2571c928-c3b1-4f74-a507-a564dc6a21a7
contributor_str_mv Verani, José Roberto
dc.subject.por.fl_str_mv Caranguejo
Brachyura
Nutrição
Halodule wrightii
topic Caranguejo
Brachyura
Nutrição
Halodule wrightii
Brachyura
Callinectes
Halodule wrightii
Feeding
Daily ration
CIENCIAS BIOLOGICAS::ECOLOGIA
dc.subject.eng.fl_str_mv Brachyura
Callinectes
Halodule wrightii
Feeding
Daily ration
dc.subject.cnpq.fl_str_mv CIENCIAS BIOLOGICAS::ECOLOGIA
description With aim to know the community structure of the Crustacea Brachyura and analyze the trophic dynamics of the species Callinectes dane, C. larvatus e C. ornatus in the seagrass bed of Halodule wrightii Aschers, studies were carried out during a dry period (February, 2001 and September to December, 2001) and the wet period (March to August, 2001) in the Forno da Cal beach, Itamaraca Island, Pernambuco, Brazil. The sampling method adopted was nocturnal trawling on the seagrass using a small (2m width) bottom net with internal mesh of 5mm and external of 2mm. Additional samplings were carried out on a period of 24 hours, in February, May, July, September and December, 2001. Samplings were also carried out on the adjacent sandy flat without vegetation, in March, June, August and December, having as objective to compare the biomass, abundance and diversity of this habitat with the seagrass in this same period. To determinate the gastric evacuation rate in the Callinectes sp., experiment was carried out. The results indicate that the Portunidae family contributed with 93% of the total captures. The species Callinectes ornatus, C. danae, C. larvatus and Portunus ordwayi were the most frequent. The highest density occurred in March, positively correlating with the air temperature, and the highest biomass was observed in July, with a positive correlation to density of cast algae. The seagrass presented the highest averages of densities, biomass, number of species, richness and diversity when compared to the adjacent sandy flat. Even if the number of species observed in the sand is higher, these presented well-distributed in the environment, with equitability value higher than in the seagrass. Animal organic matter, Gastropoda and Macrophyta were the food items that most contributed in the analysis of the stomach content of the species C. danae, C. larvatus and C. ornatus. It was observed that the smallest organisms have fed of small preys and with low mobility, as in the case of highest consume of Polychaeta, Copepoda and Amphipoda by specimens of smaller carapace width. Two feeding rhythms were observed for Callinectes: a diurnal one from 4:00 to 9:00 am and a nocturnal one between 21:00 and 22:00 pm. The evacuation rate (E) obtained by the regression analysis was E = 33.26% VE h-1. The daily ration in the sampled months in the 24-hour analyses was of 798.24% SV (the stomach fullness). After transforming the stomach fullness to somatic weight a day, the observed value was 20.748%.d-1. Then, C. ornatus with weigh of 1 g may consume 0.207 g food/ day. The seagrass bed represented as an important food source to Brachyura s population, due to the diversity of preys and refuge area, not only by the vegetation of seagrass but also by the abundance of cast algae, especially for the species Callinectes danae, C. larvatus and C. ornatus.
publishDate 2006
dc.date.issued.fl_str_mv 2006-06-06
dc.date.available.fl_str_mv 2007-08-21
2016-06-02T19:29:02Z
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dc.identifier.citation.fl_str_mv MOURA, Noely Fabiana Oliveira de. Importância do prado de capim marinho (Halodule writhii Aschers) na composição da fauna de Crustacea Brachyura e na dinâmica trófica das espécies de Callinectes (Crustacea, Portunidae) na ilha de Itamaracá - Pernambuco.. 2006. 90 f. Tese (Doutorado em Ciências Biológicas) - Universidade Federal de São Carlos, São Carlos, 2006.
dc.identifier.uri.fl_str_mv https://repositorio.ufscar.br/handle/ufscar/1583
identifier_str_mv MOURA, Noely Fabiana Oliveira de. Importância do prado de capim marinho (Halodule writhii Aschers) na composição da fauna de Crustacea Brachyura e na dinâmica trófica das espécies de Callinectes (Crustacea, Portunidae) na ilha de Itamaracá - Pernambuco.. 2006. 90 f. Tese (Doutorado em Ciências Biológicas) - Universidade Federal de São Carlos, São Carlos, 2006.
url https://repositorio.ufscar.br/handle/ufscar/1583
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