Dissertação Mestrado Profissional em Tecnologias Ambientais

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Navegando Dissertação Mestrado Profissional em Tecnologias Ambientais por Autor "Araujo, Daniel de Magalhães"

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    Avaliação da qualidade ambiental do complexo estuarino lagunar mundaú-manguaba – CELMM, Alagoas: uma abordagem biológica e da paisagem
    (Instituto Federal de Educação Ciência e Tecnologia de Alagoas, 2020-07-24) Silva, Robert Germano Alves da; Mayorga, María Angélica Pérez; http://lattes.cnpq.br/3725581918287088; Romero, Renato de Mei; http://lattes.cnpq.br/9857771457585862; Teresa, Fabricio Barreto; http://lattes.cnpq.br/2706179711969560; Sampaio, Cláudio Luis Santos; http://lattes.cnpq.br/2526336992077506; Araujo, Daniel de Magalhães; http://lattes.cnpq.br/5837261784524743
    This dissertation presents two chapters that include environmental assessment methods applied in the hydrographic basins of the Mundaú-Manguaba Estuarine-Lagoon Complex – MMELC. Degradation in CELMM has considerable environmental and socioeconomic impacts on riverside communities. We discuss how environmental, physical and spatial changes are related to chemical descriptors and the ecological response of the ichthyofauna of streams inserted in the system, aiming to test environmental diagnostic instruments for monitoring and managing impacts on rivers and coastal streams. Chapter I presents the application of the Habitat Integrity Index, a local physical assessment (80 m) already consolidated, and two proposals, one for adapting an index for landscape (1.6 km) and another for an index integrated to the two scales to equalize possible distortions. To understand the biological responses to the index values, two ecological estimators were evaluated species richness and percentage of Poecilia reticulata, in the fish community. The results are discussed in order to evaluate the ability to describe the indexes and estimators for local physical, spatial and biological characteristics. In Chapter II, the physical and chemical descriptors of the stream and ecotone were integrated with ecological descriptors. We tested the application of the Abundance and Biomass Curves (ABC) and the W statistic in the biological evaluation to detect environmental disturbance in the streams. The indicator species analysis (IndVal) was used to describe the species that characterize each land use and occupation group, and the Redundancy Analysis (RDA) was performed to identify the chemical and physical descriptors that structure the fish communities for each land use and occupation. In general, the evaluation methodologies used were able to describe the differences in the environments for each land use and occupation and relate the physical and chemical structuring of the streams to the fish community.
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    Boas práticas de manipulação, condições higiênico-sanitárias e composição mineral de sururu (Mytella falcata) comercializado em feiras livres de Alagoas
    (Instituto Federal de Educação Ciência e Tecnologia de Alagoas, 2022-07-29) Lucena, Vívian da Silva Santos; Araujo, Daniel de Magalhães; http://lattes.cnpq.br/5837261784524743; Freitas, Johnnatan Duarte de; http://lattes.cnpq.br/4999402869058858; Lopez, Ana Maria Queijeiro; http://lattes.cnpq.br/4034568781881997; Tamano, Luana Tieko Omena; http://lattes.cnpq.br/4206868438935017
    Sururu (Mytella falcata) is the main fishing resource of the Mundaú-Manguaba Estuarine- Lagoon Complex (MMELC), being a fundamental product for generating income for tens of thousands of families that live in the surroundings of the lagoons. In addition to its natural propensity to accumulate contaminants present in the aquatic environment, such as toxic metals, the handling of sururu is inadequate, from the subsequent stages of its collection to its disposal in the commercialization places. The present study aimed to carry out a diagnosis of good handling practices, hygienic-sanitary conditions and mineral composition of sururu in street markets in the municipalities bathed by the lagoons that make up the MMELC. For that, a checklist was prepared and applied to guide the observation of the hygienic conditions of the facilities, equipment and utensils used, handling and way of exposing the product, clothing and use of personal protective equipment, and waste disposal, among others, at the fairs in Maceió (Tabuleiro), Marechal Deodoro, Pilar, Satuba and Rio Largo. For the investigation of minerals, samples were acquired from all points of sale found in the fairs of the aforementioned municipalities. After procedures to obtain the extracts by acid digestion, the concentrations of iron (Fe), copper (Cu), manganese (Mn) and zinc (Zn) were analyzed, using the atomic absorption spectrophotometry technique, and lead (Pb), following the corresponding protocol of the Standard Methods for the Examination of Water and Wastewater (SMEWW). With the application of the checklist, it was possible to classify the hygienic-sanitary conditions in all the fairs visited as unsatisfactory. Despite this, it is worth noting that the highest percentages of adjustments were observed at the Rio Largo fair, where the assignment of space for commercialization was conditioned to participation in a training course in good food handling practices, offered by the municipality. The research also involved the application of a questionnaire for the socioeconomic characterization of the vendors. It could be noticed the predominance of female vendors, with low schooling, the sale of sururu and/or other fish as the only source of income, reaching a value close to the minimum wage. As for the micromineral composition, iron showed the highest concentrations in all samples, surpassing by more than fifteen times the values detected for copper, manganese and zinc. Regarding the toxic metal lead, the samples were within the limit allowed in bivalve molluscs. The results obtained with this work confirm the importance of sururu for countless families who sell it in open markets to earn a living and reinforce the need for a joint effort, by the market vendors and those responsible for managing these spaces, to provide the population of these locations with an environment conducive to commercialization of food. In addition, it is necessary for the competent authorities to continuously investigate the levels of highly toxic trace elements in the MMELC, so that the benefits of the consumption of sururu by the population are not counterbalanced by the risk of contamination.
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    Diagnóstico e monitoramento da pesca artesanal marítima na RESEX da Lagoa do Jequiá : integração do conhecimento ecológico local e tecnologias de rastreamento
    (2025-01-22) Rodrigues, Diego Alexandre Salgueiro; Romero, Renato de Mei; http://lattes.cnpq.br/9857771457585862; Araujo, Daniel de Magalhães; http://lattes.cnpq.br/5837261784524743; Sampaio, Cláudio Luis Santos; http://lattes.cnpq.br/2526336992077506; Normande, Iran Campello; http://lattes.cnpq.br/7987532975778534
    The study addresses artisanal fishing in the Marine Extractive Reserve (RESEX) of Lagoa do Jequiá, highlighting the role of fishers' ethnoecological knowledge and the use of technologies to track fishing activities. The research combined semi-structured interviews, GPS tracking, and fleet counting via drones to understand fishing strategies, spatial patterns, and fishers' perceptions of environmental changes. Six fishing methods and 54 captured species were identified, revealing a strong relationship between the techniques used and the characteristics of the exploited areas. The results indicate that fishing activity is in decline, partly due to the aging fishing population and a lack of infrastructure and government support. The study also suggests that, although no tracked vessels operated within the RESEX, there are indications of fishing in protected areas during the dry season, a hypothesis that requires further investigation. Integrating local knowledge with spatial data is essential for planning marine protected areas, promoting sustainable management, and reducing conflicts between conservation and artisanal fishing.
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    Reservas Particulares do Patrimônio Natural (RPPNs) de Alagoas: da gênese aos usos
    (Instituto Federal de Educação Ciência e Tecnologia de Alagoas, 2022-07-27) Ferreira, Tarciéri de Souza; Romero, Renato de Mei; http://lattes.cnpq.br/9857771457585862; Araujo, Daniel de Magalhães; http://lattes.cnpq.br/5837261784524743; Melo, Joabe Gomes de; http://lattes.cnpq.br/5180399418500159; Santos, Poliana dos
    Several sectors of society demand essential natural resources to maintain life, so the balance between the use and replacement of these resources is essential. In this context, the creation of protected areas can work as an excellent instrument of environmental management, especially in the provision of ecosystem services. Private Natural Heritage Reserves are private conservation units with the objective of achieving these assumptions. The objective of this study is to understand and characterize the processes related to creation and the uses given to this typology of protected area in Alagoas. A survey of data (spatial, bibliographic, documentary and interviews) was carried out on the reserves. Information from interviews with representatives of public agencies and civil society responsible for the creation and implementation, in addition to the owners or managers of the reserves, was analyzed. With this, we sought to identify three main points: 1. History of creation of RPPNs; 2. Description of the reserves, with administrative and maintenance aspects, conservation, biodiversity, threats; 3. Public and private uses of the reserve. As a result, we hope to assist in the composition of scientific information about them, once the existence of gaps in freely accessible data in official electronic addresses has been identified. As for the partial results obtained so far, it is possible to observe the identification of all the seventy-six existing reserves in the state, as well as the classification by domains and by stages of creation. From this, a higher concentration of reserves was identified in the Atlantic Forest domain compared to the Caatinga domain. This abundance of reserves, mainly in the Atlantic Forest, may be linked to actions by several sectors: the public ministry, the state environmental agency, non-governmental organizations active in this biome, as well as the initiative of the agro-industrial sector, since several protected areas are owned by the sugar and ethanol industries. Therefore, the emergence of RPPNs in the state of Alagoas was motivated by factors such as the institution of SNUC itself; the incentive to landowners through environmental compensation, in the form of a suggestion in accordance with the IMA and MP; regularization through decree 3050/2006; the need for forested areas to implement projects for the reintroduction of endangered species and actions to publicize this type of reserve among landowners carried out by IPMA. All these factors added to the development of the Mais RPPNs, Pró-Reservas plans and all the effort made by the NGOs, as well as a good relationship between the actors involved to facilitate the reduction of bureaucracy in the processes in public agencies were essential for the installation of RPPNs in the state.