Comportamento das variáveis físico-químicas da água do lago Bolonha-Belém-PA

Brito, Fábio Sérgio Lima; Pimentel, Bruna Andrade; Vilhena, Josiane Coutinho; Rosário, Karla Karoline Leite; Morais, Mateus Souza; Cruz, Rosa Helena Ribeiro; Corrêa, Verena Lucia Souza

doi:10.34117/bjdv6n1-120

Cited by 3 publications

(2 citation statements)

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“…According to Zaghloul et al (2020) [69], a low amount of species present in the environment demonstrates a high degree of stress to which the system is subjected. Due to the disorderly advance of urbanization around the reservoirs and allied to the low coverage of basic sanitation present in the region [8,10], the supply reservoirs of Belém are in the process of eutrophication [5,12,70], which has contributed to the gradual decrease in the diversity of the aquatic environment [71], mainly in the Bolonha reservoir, which is dominated by aquatic macrophytes, and their proliferation is mainly associated with the increase of nutrients in the water [72], and this increase is possibly associated with the contribution of sewage discharges without prior treatment.…”

Section: Ecological Indexes Analysismentioning

confidence: 99%

Ecological indexes and phytoplankton structure of urban reservoirs supplied by estuarine waters and under the effects of seasonality (Belém, Pará, Brazil)

Brito Pires,

Garcia Díaz,

Brabo de Sousa

et al. 2023

Sci. Plena

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Ecological indices are used in the study of phytoplankton because they are related to their productivity and can describe the stresses caused by anthropogenic impacts on the aquatic environment. The aim of this study was to evaluate the phytoplankton structure and the application of ecological indices in the monitoring of water quality in public supply reservoirs in Belém (Pará). Monthly sampling occurred in four stations in the Bologna and Água Preta reservoirs from January to October/2019, to determine the abiotic and biotic factors and the calculation of ecological indices. Turbidity, transparency, precipitation and dissolved oxygen were the main abiotic variables that differentiated the reservoirs, evidencing the estuarine, seasonal and anthropogenic influence on species distribution. A total of 187 phytoplankton species were identified with representation of diatoms. In January, Água Preta reservoir presented lower diversity (2.14 ± 0.58 nats.ind-1), equitability (0.57 ± 0.14) and higher dominance (0.25 ± 0.19) with the species Trachelomonas volvocina in higher density, contrary to June that presented higher diversity and equitability and no species dominance. The Bolonha reservoir showed lower richness (8.3 ± 1.9), diversity (1.2 ± 0.5 nats.ind-1) and equitability (0.32 ± 0.12) with dominance of the species Gonyostomum sp. (0.55 ± 0.19). In this sense, the Água Preta reservoir was considered diverse with species well distributed in the environment, while the Bolonha reservoir showed low diversity and dominance of a phytoplankton species. Ecological indices describe well the spatio-temporal variation of phytoplankton in these reservoirs and are a good approach in monitoring environmental quality.

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Section: Ecological Indexes Analysismentioning

confidence: 99%

Ecological indexes and phytoplankton structure of urban reservoirs supplied by estuarine waters and under the effects of seasonality (Belém, Pará, Brazil)

Brito Pires,

Garcia Díaz,

Brabo de Sousa

et al. 2023

Sci. Plena

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“…The Camboriú River, as well as others located close to urban centers (Strokal et al, 2021), have the highest water quality close to the source, and it decreases dramatically towards the mouth as a reflection of low concentrations of dissolved oxygen and high concentrations of nutrients, mainly phosphate and ammonia (SDS, 2017). This change occurs especially as a result of effluent release with large concentrations of organic matter from urbanized areas (Oliveira et al, 2021), which contribute to changing the physicochemical characteristics of the environment (Brito et al, 2020). Brasil & Silva (2000) evaluating the distribution of polychaetes in Rio de Janeiro, found a relationship between the presence of M. californiensis, very fine sand, and the concentration of organic matter.…”

Section: Abioticsmentioning

confidence: 99%

Composition and seasonal variation of capitellidae from Balneário Camboriú, Santa Catarina, Brazil

Beltrão,

Cunha,

Diehl

2023

RHE

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The objective of this study was to provide information about the structure and composition of the Capitellidae family in Balneário Camboriú, as well as evaluate its space-time variations. Four sampling campaigns were carried out at 16 stations, distributed in the Camboriú River and Balneário Camboriú Bay. A total of 1,769 ind.m² were collected and identified into five taxa: Capitella sp.; Capitella cf. nonatoi; Heteromastus sp., Heteromastus similis and Mediomastus cf. californiensis. The most abundant taxon was M. californiensis, showing the highest number of individuals during autumn, followed by Capitella cf. nonatoi in the summer. The distribution of M. californiensis was more related to the opportunistic habit of the species than to seasonality, while Capitella cf. nonatoi distribution was related to the high concentration of organic matter from the Camboriú River, which may be the result of residents and tourists visiting the city in the summer. These results denote the Capitellidae family bioindicator potential for anthropogenic disturbances.

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Pressões ambientais sobre serviços ecossistêmicos hídricos em um manancial em Belém, Pará, Brasil

Silva

Furtado

Beltrão

et al. 2020

RSD

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Serviços ecossistêmicos (SEs) são bens tangíveis e intangíveis produzidos pelos ecossistemas que são utilizados pela sociedade em busca do bem-estar humano. Os ecossistemas aquáticos prestam SEs cruciais, porém, ao sofrerem mudanças na qualidade e quantidade de água, os corpos hídricos podem alterar a oferta desses serviços. Desta forma, o presente estudo teve como objetivo classificar os SEs hídricos identificados em um manancial de água localizado em Belém-PA, avaliando como esses estes SEs são impactados pelas pressões ambientais que agem sobre esses recursos. O manancial objeto deste estudo é composto pelos lagos Água Preta e Bolonha, que está inserido dentro do Parque Estadual do Utinga (PEUt), uma Unidade de Conservação de Proteção Integral que, por sua vez, está inserido na Área de Proteção Ambiental Belém (APA Belém), e é responsável pelo abastecimento de água potável de aproximadamente 65% da população da Região Metropolitana de Belém (RMB). A metodologia da pesquisa teve como base a literatura científica para abordagem teórica dos SEs e posterior associação com as características ambientais locais. Foram abordados os serviços de abastecimento de água, regulação de água, autodepuração, recreativos e ecoturísticos e educacionais. As diversas pressões sobre o manancial estão relacionadas às mudanças no uso e cobertura do solo nas áreas adjacentes aos lagos que o compõe, principalmente por conta da expansão da urbanização, caracterizadas pelo despejo de esgoto sanitário e de sedimentos nos lagos, acarretando no surgimento de macrófitas, o que além de alterar a qualidade da água do manancial, pode contribuir para o seu assoreamento.

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Comportamento das variáveis físico-químicas da água do lago Bolonha-Belém-PA

Abstract: Comportamento das variáveis físico-químicas da água do lago Bolonha-Belém-PA Behavior of physicochemical variables of water Bolonha-Belém-PA

Cited by 3 publications

References 1 publication

Ecological indexes and phytoplankton structure of urban reservoirs supplied by estuarine waters and under the effects of seasonality (Belém, Pará, Brazil)

Ecological indexes and phytoplankton structure of urban reservoirs supplied by estuarine waters and under the effects of seasonality (Belém, Pará, Brazil)

Composition and seasonal variation of capitellidae from Balneário Camboriú, Santa Catarina, Brazil

Pressões ambientais sobre serviços ecossistêmicos hídricos em um manancial em Belém, Pará, Brasil

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