58 resultados para Corais


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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

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No presente estudo, destacamos como a estrutura da poesia trágica em partes cantadas e dialogadas resulta num grande espetáculo dominado pela palavra. Nos cantos corais e nos cantos de ator, os estados emocionais são marcados pelo viés da tradição do dialeto dórico. Nos diálogos, o ritmo próximo da fala quotidiana, em dialeto ático, acelera os acontecimentos em cena, põe em ação e movimenta o que Aristóteles depois vai chamar de “ação”. O resultado da mescla de tradição e novidade, de canto e fala, de dança e gestos, é um espetáculo contendo mito e “realidade”, poesia e retórica, entre outras dicotomias, em que o poder da linguagem é colocado em cena. Na tragédia, então, a palavra em todos os seus modos de expressão é o espetáculo a ser visto e ouvido. Assim, a tragédia grega insere-se numa longa tradição iniciada pela poesia oral homérica e anuncia o estabelecimento da filosofia.

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Entre instituições e atividades ligadas à igreja como reuniões de oração, cultos, ensaios de corais, ministério infantil, casa, filhos, vida conjugal, etc. está presente uma figura ainda não estudada pelas Ciências da Religião, a da esposa do pastor batista. O objetivo principal desta pesquisa foi o de analisar o processo de construção e de manutenção das representações sociais dessas mulheres. Para isso, no primeiro capítulo identificamos e analisamos as representações de gênero presentes na estrutura e no cotidiano eclesiástico da denominação e seus reflexos na elaboração e na conservação do perfil das esposas de pastores. No segundo capítulo realizamos uma análise do poder e do papel das instituições de formação teológica e ministerial da denominação batista como formas de idealização, de construção e de manutenção das representações sociais das esposas de pastores. Investigamos no terceiro capítulo as formas do trânsito das esposas de pastores entre os espaços públicos e privados - imbricados um no outro, e as formas em que o poder institucional atua nestes lugares. Para este fim, utilizamos o método etnográfico, observando as igrejas batistas selecionadas, aplicando questionários aos membros das igrejas, líderes institucionais e estudantes da Faculdade Teológica Batista do Paraná FTBP e realizando entrevistas semi-estruturadas com os pastores e suas esposas. As teorias das Ciências da Religião e Sociais nos proporcionaram o suporte teórico necessário para o desenvolvimento do texto e para a análise dos dados empíricos. (AU)

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Entre instituições e atividades ligadas à igreja como reuniões de oração, cultos, ensaios de corais, ministério infantil, casa, filhos, vida conjugal, etc. está presente uma figura ainda não estudada pelas Ciências da Religião, a da esposa do pastor batista. O objetivo principal desta pesquisa foi o de analisar o processo de construção e de manutenção das representações sociais dessas mulheres. Para isso, no primeiro capítulo identificamos e analisamos as representações de gênero presentes na estrutura e no cotidiano eclesiástico da denominação e seus reflexos na elaboração e na conservação do perfil das esposas de pastores. No segundo capítulo realizamos uma análise do poder e do papel das instituições de formação teológica e ministerial da denominação batista como formas de idealização, de construção e de manutenção das representações sociais das esposas de pastores. Investigamos no terceiro capítulo as formas do trânsito das esposas de pastores entre os espaços públicos e privados - imbricados um no outro, e as formas em que o poder institucional atua nestes lugares. Para este fim, utilizamos o método etnográfico, observando as igrejas batistas selecionadas, aplicando questionários aos membros das igrejas, líderes institucionais e estudantes da Faculdade Teológica Batista do Paraná FTBP e realizando entrevistas semi-estruturadas com os pastores e suas esposas. As teorias das Ciências da Religião e Sociais nos proporcionaram o suporte teórico necessário para o desenvolvimento do texto e para a análise dos dados empíricos. (AU)

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Entre instituições e atividades ligadas à igreja como reuniões de oração, cultos, ensaios de corais, ministério infantil, casa, filhos, vida conjugal, etc. está presente uma figura ainda não estudada pelas Ciências da Religião, a da esposa do pastor batista. O objetivo principal desta pesquisa foi o de analisar o processo de construção e de manutenção das representações sociais dessas mulheres. Para isso, no primeiro capítulo identificamos e analisamos as representações de gênero presentes na estrutura e no cotidiano eclesiástico da denominação e seus reflexos na elaboração e na conservação do perfil das esposas de pastores. No segundo capítulo realizamos uma análise do poder e do papel das instituições de formação teológica e ministerial da denominação batista como formas de idealização, de construção e de manutenção das representações sociais das esposas de pastores. Investigamos no terceiro capítulo as formas do trânsito das esposas de pastores entre os espaços públicos e privados - imbricados um no outro, e as formas em que o poder institucional atua nestes lugares. Para este fim, utilizamos o método etnográfico, observando as igrejas batistas selecionadas, aplicando questionários aos membros das igrejas, líderes institucionais e estudantes da Faculdade Teológica Batista do Paraná FTBP e realizando entrevistas semi-estruturadas com os pastores e suas esposas. As teorias das Ciências da Religião e Sociais nos proporcionaram o suporte teórico necessário para o desenvolvimento do texto e para a análise dos dados empíricos. (AU)

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In the shallow continental shelf in Northeastern Rio Grande do Norte - Brazil, important underwater geomorphological features can be found 6km from the coastline. They are coral reefs, locally known as “parrachos”. The present study aims to characterize and analyze the geomorphological feature as well as the ones of the benthic surface, and the distribution of biogenic sediments found in parrachos at Rio do Fogo and associated shallow platforms, by using remote sensing products and in situ data collections. This was made possible due to sedimentological, bathymetric and geomorphological maps elaborated from composite bands of images from the satellite sensors ETM+/Landsat-7, OLI/Landsat-8, MS/GeoEye and PAN/WordView-1, and analysis of bottom sediments samples. These maps were analyzed, integrally interpreted and validated in fieldwork, thus permitting the generation of a new geomorphological zoning of the shallow shelf in study and a geoenvironmental map of the Parrachos in Rio do Fogo. The images used were subject to Digital Image Processing techniques. All obtained data and information were stored in a Geographic Information System (GIS) and can become available to the scientific community. This shallow platform has a carbonate bottom composed mostly by algae. Collected and analyzed sediment samples can be classified as biogenic carbonatic sands, as they are composed 75% by calcareous algae, according to the found samples. The most abundant classes are green algae, red algae, nonbiogenic sediments (mineral grains), ancient algae and molluscs. At the parrachos the following was mapped: Barreta Channel, intertidal reefs, submerged reefs, the spur and grooves, the pools, the sandy bank, the bank of algae, sea grass, submerged roads and Rio do Fogo Channel. This work presents new information about geomorphology and evolution in the study area, and will be guiding future decision making in the handling and environmental management of the region

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The Acanthuridae family is a representative group from the marine fish that plays a key role in ecological dynamics of coral reefs. Three species are common along coastal reefs of Western Atlantic: Acanthurus coeruleus, Acanthurus bahianus and Acanthurus chirurgus. In the present study, cytogenetic data are presented for these three species Acanthurus based on classical cytogenetic methods and mapping of repetitive sequences such as ribosomal 18S and 5S rDNA and telomeric repeats to improve their karyotype evolutionary analyses. The cytogenetic pattern of these species indicated sequential steps of chromosomal rearrangements dating back 19 to 5 millions of years ago (M.a.) that accounted for their interspecific differences. A. coeruleus (2n=48; 2sm+4st+42a), A. bahianus (2n=36; 12m+2sm+4st+18a) and A. chirurgus (2n=34; 12m+2sm+4st+16a) share an older set of three chromosomal pairs that were originated through pericentric inversions. A set of six large metacentric pairs formed by Robertsonian (Rb) translocations found in A. bahianus and A. chirurgus and a putative in tandem fusion found in A. chirurgus are more recent events. The lack of interstitial telomeric sequences (ITS) in spite of several centric fusions in A. bahianus and A. chirurgus might be related to the long period of time after their occurrence (estimated in 5 M.a.). Furthermore, the homeologies among the chromosome pairs bearing ribosomal genes, in addition to other structural features, highlight large conserved chromosomal regions in the three species. Our findings indicate that macrostructural changes occurred during the cladogenesis of these species were not followed by conspicuous microstructural rearrangements in the karyotypes.

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There are several abiotic factors reported in the literature as regulators of the distribution of fish species in marine environments. Among them stand out structural complexity of habitat, benthic composition, depth and distance from the coast are usually reported as positive influencers in the diversity of difentes species, including reef fish. These are dominant elements in reef systems and considered high ecological and socioeconomic importance. Understanding how the above factors influence the distribution and habitat use of reef fish communities are important for their management and conservation. Thus, this study aims to evaluate the influence of these variables on the community of reef fishes along an environmental gradient of depth and distance from shore base in sandstone reefs in the coast of state of Rio Grande do Norte, Brazil. These variables are also used for creating a simple predictive model reef fish biomass for the environment studied. Data collection was performed through visual surveys in situ, and recorded environmental data (structural complexity of habitat, type of coverage of the substrate, benthic invertebrates) and ecological (wealth, abundance and reef fish size classes). As a complement, information on the diet were raised through literature and the biomass was estimated from the length-weight relationship of each species. Overall, the reefs showed a low coverage by corals and the Shallow reefs, Intermediate I and II dominated by algae and the Funds by algae and sponges. The complexity has increased along the gradient and positively influenced the species richness and abundance. Both attributes influenced in the structure of the reef fish community, increasing the richness, abundance and biomass of fish as well as differentiating the trophic structure of the community along the depth gradient and distance from the coast. Distribution and use of habitat by recifas fish was associated with food availability. The predictor model identified depth, roughness and coverage for foliose algae, calcareous algae and soft corals as the most significant variables influencing in the biomass of reef fish. In short, the description and understanding of these patterns are important steps to elucidate the ecological processes. In this sense, our approach provides a new understanding of the structure of the reef fish community of Rio Grande do Norte, allowing understand a part of a whole and assist future monitoring actions, evaluation, management and conservation of these and other reefs of Brazil.

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O FEMACO – Festival Maranhense de Coros – teve durante a sua existência (1977-2012) um forte impacto sociocultural em São Luís, capital do Maranhão e contribuiu decisivamente para a formação de diretores corais e educadores musicais nesta região. A presente investigação constitui um levantamento histórico dos 36 anos de existência deste festival e uma reflexão sobre a sua contribuição para a música coral no Estado do Maranhão. Para chegar a estes objetivos foi realizado um levantamento dos materiais impressos que constam do arquivo do próprio Festival, existente na Universidade Federal do Maranhão, nomeadamente dos cartazes e brochuras com os programas do festival, e dos registos existentes nos jornais locais sobre o mesmo. Foram realizadas entrevistas com os autores do projeto FEMACO e foi ainda feito um inquérito, através de um questionário, a professores e regentes que participaram no festival. Sendo este o primeiro registo histórico sobre o FEMACO, um dos festivais de corais mais antigos da região Nordeste do Brasil, pretende-se realizar uma reflexão sobre a sua influência na música coral no Maranhão e fornecer dados que, esperamos, poderão servir como fonte de consulta para futuras investigações.

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The species Dasyatis marianae inhabits coastal areas associated with coral reefs, considered endemic to the northeast of Brazil, occurring from the State of Maranhão to the south of Bahia. Specimens of this species are commonly sighted by divers and fishermen in the area of Maracajaú reefs, a complex reef that is part of the Environmental Protection Area of Coral Reefs (EPACR), which was developed in this study about the ecology and biology of the D. marianae, in order to characterize aspects of population structure in the area of the reef complex of Parracho de Maracajaú. We analyzed 120 specimens caught by artisanal fishing site of the size, weight, sex, stage of maturity and stomach contents. Most subjects were adult males (1.7:1) and was more abundant for rays with lengths between 25 and 29cm of LD, where females reach larger sizes, a feature common to other rays. The largest specimens were captured in the area of seagrass, which is preferred for the species. The distribution of species in the area showed an ontogenetic and sexual segregation, where the youthful occur near the beach, which is a likely area for nursery and growth of the adult females prevail in the seagrass, which apparently has a high prey availability, and Adult males are more distant, a higher proportion occurring in outlying areas, suggesting a habit more exploratory than the females. The evaluation of the reproductive system indicated 3 reproductive cycles per year, one young per pregnancy, and showed that the mature males were smaller than females. The cubs of D. marianae size at birth 12 to 15cm LD. As for diet, the species was characterized as carnivorous crustacean specialist. The performance of visual censuses in different localities allowed to evaluate the density of D. marianae in different environments of the complex. The species occurs in greater numbers in seagrass, environment very important for the conservation of the species. 100 individuals of D. marianae marked in reef complex area enrolled in a recapture rate of 3%. Some behavioral aspects were evaluated, as diurnal pattern of activity, interaction with cleaning and fish Pomacanthus paru followers as Lutjanus analis and Carangoides bartholomaei. Overall, much of the information obtained should be used for management of the species

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Heterotrophic feeding has an important role in the processes of growth and reproduction of mixotrophic corals. The soft coral Sarcophyton cf. glaucum is a good candidate for aquaculture due to its economic interest for the marine aquarium trade and for the bioprospection of marine natural products. The lack of information on heterotrophic feeding of this species with preserved microalgae conducted to development of this work. The present study aimed to evaluate the effect of the conservation processes of microalgae in its suitability as heterotrophic feeding for the mixotrophic coral S. cf. glaucum. Additionally, we aimed to identify the most suitable freeze-dried microalgae species and cell density to be employed in the culture of this mixotrophic coral species. Two experiments were performed: in the first experiment the microalgae Nannochloropsis oculata was supplied to coral fragments in three different preservation forms (live paste, frozen and freeze-dried) at the concentration of 106 cell mL-1; in the second experiment three different microalgae species (Nannochloropsis oculata, Isochrysis galbana and Phaeodactylum tricornutum) were tested in two different amounts: 7.33 mg L-1 (corresponding to the concentration of 106 cell mL-1 of Nannochloropsis oculata) and 3.66 mg L-1. Growth rate, survival, organic weight and photobiology of coral fragments, as well as water quality in culture tanks, were evaluated in both experiments. Preserved forms of microalgae did not demonstrated differences in growth rate, organic weight and survival rate of coral fragments, but affected water quality. Freeze-dried microalgae seems to be a good feed supply for coral aquaculture, as it has the best results and it has the higher shell-life time and the lower associated costs. Between the species evaluated in second experiment, Isochrysis galbana promoted higher specific growth rate and higher percentage of organic weight in the coral fragments; additionally the culture tanks supplied with this microalgae species also presented a better water quality in the end of the experiment.

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The species Dasyatis marianae inhabits coastal areas associated with coral reefs, considered endemic to the northeast of Brazil, occurring from the State of Maranhão to the south of Bahia. Specimens of this species are commonly sighted by divers and fishermen in the area of Maracajaú reefs, a complex reef that is part of the Environmental Protection Area of Coral Reefs (EPACR), which was developed in this study about the ecology and biology of the D. marianae, in order to characterize aspects of population structure in the area of the reef complex of Parracho de Maracajaú. We analyzed 120 specimens caught by artisanal fishing site of the size, weight, sex, stage of maturity and stomach contents. Most subjects were adult males (1.7:1) and was more abundant for rays with lengths between 25 and 29cm of LD, where females reach larger sizes, a feature common to other rays. The largest specimens were captured in the area of seagrass, which is preferred for the species. The distribution of species in the area showed an ontogenetic and sexual segregation, where the youthful occur near the beach, which is a likely area for nursery and growth of the adult females prevail in the seagrass, which apparently has a high prey availability, and Adult males are more distant, a higher proportion occurring in outlying areas, suggesting a habit more exploratory than the females. The evaluation of the reproductive system indicated 3 reproductive cycles per year, one young per pregnancy, and showed that the mature males were smaller than females. The cubs of D. marianae size at birth 12 to 15cm LD. As for diet, the species was characterized as carnivorous crustacean specialist. The performance of visual censuses in different localities allowed to evaluate the density of D. marianae in different environments of the complex. The species occurs in greater numbers in seagrass, environment very important for the conservation of the species. 100 individuals of D. marianae marked in reef complex area enrolled in a recapture rate of 3%. Some behavioral aspects were evaluated, as diurnal pattern of activity, interaction with cleaning and fish Pomacanthus paru followers as Lutjanus analis and Carangoides bartholomaei. Overall, much of the information obtained should be used for management of the species

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O estudo de uma jazida fossilifera descoberta recentemente no Devónico do Anticlinal de Valongo(Portugal) forneceu novos elementos paleofaunisticos, biostratigrilficos e paleoambientais sobre este contexto estratigráfico. Efetuou-se uma extensa amostragem paleontológica, acompanhada por estudos de estratigrafia em que se focaram aspetos detaxonomia,tafonomia,biostratigrafia e paleoecologia de invertebrados marinhos. Durante o trabalho de campo foram descobertos vários grupos taxonómicos de invertebrados tipicos deste Sistema, entre os quais se contam corais rugosos e tabulados, briozodrios, braquiópodes, bivalves, tentaculites, crinóides, trilobites e vários fósseis problemáticos. As litofacies, a presença de ripple marks com concentrações de tentaculites reorientadas e as carateristicas paleoecológicas da associação fóssil amostrada permitem inferir a presença de um ambiente litoral, de pouca profundidade, com sedimentação siliciclástica fina e correntes de deriva de intensidade moderada. A ocorr6ncia do bizarro género Tiaracrinus, um crinóide, sugere idade compreendida entre o Lochkoviano (Devónico Inferior) e o Eifeliano (Devónico Médio). Este género é reconhecido pela primeira vez no Maciço Ibérico.