Navegando por Assunto "Santa Cruz do Arari - PA"

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Acesso aberto (Open Access)
Filogeografia em lagartos no baixo Tocantins, Ilha do Marajó e Sul do Amapá
(Universidade Federal do Pará, 2008) SOUZA, Ana Carla Barros de; GONÇALVES, Evonnildo Costa; http://lattes.cnpq.br/8652560763793265; ÁVILA-PIRES, Teresa Cristina Sauer de; http://lattes.cnpq.br/1339618330655263
Filogeographical studies have helped to clarify the spatial and temporal context of the diversification of organisms from Amazonian, which can be directly compared with specific geological scenarios. This study aims to contribute with the reconstitution of the recent history of low Tocantins/Marajó Island from a philogeographical analysis of Gonatodes humeralis and Kentropyx calcarata. The questions to be answered are whether there is a distinction among the population of the southern Amapá, Marajó Island, and each side of the Tocantins river, and how these populations interrelate one each other. In addition, this work also aims to assess the usefulness of the gene cytochrome oxidase I as a marker for studies of lizard populations. Data from 49 specimens of G. humeralis and 32 of K. calcarata from 14 localities in southern Amapá, low Tocantins, Marajó Island, and of an external population of the focal area of study, in the city of Itaituba, Pará, were analyzed. The molecular studies were based on mitochondrial gene cytochrome oxidase I. The levels of genetic variability were calculated: diversity of nucleotides (π) and diversity of haplotypes (h), the genetic differentiation through the analysis of molecular variance (AMOVA) and the estimates of Fst for pairs of populations and distribution of the differences between pairs of sequences. It was used a statistical test to detect possible R2 events of recent demographic expansion. The phylogenetic relations between populations were evaluated by the construction of non-rooted trees using the methods of maximum parsimony (MP) and maximum likelihood (MV). The results show that although the COI has been rarely used for this purpose, the observed variation in sequences of populations of G. humeralis and K. calcarata indicates that it is a useful marker for Phylogeographic analysis. The five populations of both species studied here, are genetically structured. This indicates a low or, more probably, inexistent gene flow among them. The observed Phylogeographic relations, although more certainly to G. humeralis than K. calcarata, indicates that significant changes have occurred in relatively recent times in the drainage system in the low Tocantins river and Marajo island. This is due strong indications, obtained in this study, that in recent past there was more movement, active or passive, of the species between regions of Marajo and west of the Tocantins river that would have been the most directly affected by these changes.
Acesso aberto (Open Access)
Morphological characterization of Eustrongylides sp. larvae (Nematoda, Dioctophymatoidea) parasite of Rhinella marina (Amphibia: Bufonidae) from Eastern Amazonia
(Universidade Federal do Pará, 2016-06) MELO, Francisco Tiago de Vasconcelos; MELO, Caroline do Socorro Barros; NASCIMENTO, Luciana de Cássia Silva do; GIESE, Elane Guerreiro; FURTADO, Adriano Penha; SANTOS, Jeannie Nascimento dos
Eustrongylides spp. nematodes have birds as final hosts and uses other vertebrates as intermediate/paratenic host (fish, amphibians and reptiles) and have zoonotic potential. In amphibians, the larvae may be located in the subcutaneous tissues, liver and mesentery, between the muscle fibres, especially in the lower limbs. Rhinella marina, which is widely observed in Brazil, has exhibited complex diversity in its helminth fauna, reflecting the unique habitat of the Amazon biome. For the first time, this study describes the morphological aspects of third-stage larvae of Eustrongylides sp. in Rhinella marina from Santa Cruz do Ararí, Marajó Archipelago, Eastern Amazonia, using light and scanning electron microscopy.
Acesso aberto (Open Access)
Narrativas orais: cultura e identidade em Santa Cruz do Arari
(Universidade Federal do Pará, 2012-09-12) BENTES, Rosa Maria Ramos; SIMÕES, Maria do Perpétuo Socorro Galvão; http://lattes.cnpq.br/0672011058049782
This study, inserted in the project IFNOPAP (UFPA), shows the results of a research in oral narratives by the native of Santa Cruz do Arari, which serves, simultaneously, as source and transmission of empirical knowledge produced by rustic man and his relationship with the environment. Under the title “Oral Narratives: culture and identity in Santa Cruz do Arari”, it searches unveil the symbolic web aspects of sexuality, morality and religiousness ― ideological subjects which gather the culture and the memoirs components of the identity base of the society, therefore, presents in oral narratives “Cobra Custódio”, “Boto-mirim” and “Bode Cheiroso”. The locus of the search is the municipality of Santa Cruz do Arari, situated on Marajóisland. These narratives were analyzed under the perspectives of the following theorists: Gilbert Durand (1997), MirceaEliade (1991), Walter Benjamin (1994), Paul Zumthor (1993), EcléaBosi (1994), Michael Pollak (1992), Paes Loureiro (1995) and Clifford Geertz (2011). Theorists who guided the reflexive bias in this study.
Acesso aberto (Open Access)
A pesca do tamoatá Haplosternum litorale (Hancock, 1828) (Siluriformes : Callichthyidae), na ilha de Marajó-Foz Amazônica
(Universidade Federal do Pará, 2005) ALBUQUERQUE, Adna Almeida de; BARTHEM, Ronaldo Borges; http://lattes.cnpq.br/4192105831997326
Hoplosternum littorale (Hancock, 1828) (Siluriformes, Callichthyidae) is a small catfish known in Brazilian Amazon as tamoatá. It is the main fisheries resources in the swamps and floodplain of the Marajó Island, especially in the Arari Lake and Arari River, near the Santa Cruz do Arari city. The inland Marajó fishery is described based in the field observation and local fishermen interview. The seine and gillnet are the most important fishing gears used by the fishermen with the canoe with paddle. The fish is stocked in boats with ice box called as geleiras. The managers of those boats buy the fish caught by the local fishermen. The boats wait some days to complete the ice box of fish and then transport the fish to be sold in the urban centers. The tamoatá caught in the Marajó Island between 1993 and 2004 and yielded in the Ver-O-Peso fish port was related with the total days spent by the geleiras in the Marajó by month and with the monthly rainfall measured in the meteorological station of the Soure city. The dry season is the most productive period, when the fish are concentrated in the remains water pools in the lake and river. The analysis of covariance (ANCOVA) indicates a significant relationship between the monthly tamoatá yield and days and rainfall factors. The relationship is positive to the days and negative to the rainfall. However, the relationship between the annual tamoatá yield and the rainfall is significant and positive. The lower amount of rainfall measured in the last years may explain the recent low caught of tamoatá in Marajó Island.