Alexandre Ricardo de Oliveira- PhD Biological Oceanography
- Professor (Full) at Federal University of Alagoas
Alexandre Ricardo de Oliveira
- PhD Biological Oceanography
- Professor (Full) at Federal University of Alagoas
About
19
Publications
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Introduction
He is currently a Associate Professor IV at the University of Alagoas - UFAL - Campus of Engineering and Agricultural Science. Has experience in Ecology and Ecotoxicology; with emphasis on Ecology of Decapod Crustaceans, acting on the following subjects: Population Dynamics (reproduction, distribution and feeding of crustaceans); Histology (emphasis on gonadal maturation of Brachyura), Toxicology (heavy metals in crustaceans and water quality) and Ecosystem Ecology (Mangrove and Estuary).
Current institution
Publications
Publications (19)
Objective: This study aimed to evaluate concentrations of metals in the tissues of the midgut gland and muscles of males and females of Callinectes sapidus and C. bocourti from the estuarine region of the São Francisco River. Theoretical Framework: A critical aspect of the introduction of chemical substances into aquatic systems is the bioaccumulat...
As "Paneleiras de Goiabeiras", em Vitória-ES, são artesãs tradicionais que utilizam cascas da árvore Rhizophora mangle para pintar panelas de barro. Porém, essa prática tem impactado negativamente os manguezais, levando à morte das árvores. O “modo de fazer” panelas de barro é o primeiro patrimônio cultural imaterial brasileiro. Em 1997, foram real...
Os manguezais são ecossistemas costeiros comuns em regiões de clima tropical e subtropical e sujeitos ao regime de marés e à conexão de ambientes de água doce e marinhos, podendo ser encontrados em quase toda a costa brasileira (04°30’N; 28°28’S), o que representa cerca de 8,9% dos manguezais do mundo. Por suas características únicas, são considera...
Human activities have major impacts on all compartments of the environment. Pollution in all its origins acts acutely and chronically and its impacts can be destructive of the entire environmental balance. Environmental Education encompasses new perspectives for new knowledge, contributing to the construction of responses to environmental problems,...
The aim of this work was to identify and analyze the saline tolerance throughout the white mangrove propagules of L. racemosa germination, a halophyte and monotypic species, to contribution to the mangrove restoration. A total of 450 propagules were subjected to different salinities. The propagules were divided into three replicates (r) of 30 propa...
No ensino superior a relação entre o professor e o aluno é constituída por meio de suas vivências na universidade, vigente do comportamento esperado de cada um deles, ambos constroem o Contrato Didático. Esta relação professor-aluno é composta pela interação professor-aluno-saber, é esperado o posicionamento dos envolvidos para o ensino-aprendizado...
Este estudo teve como objetivo caracterizar a estrutura do manguezal da Lagoa do Roteiro no estado de Alagoas, através de parâmetros fitossociológicos. Para isso, foram traçados seis transectos, cada um dividido em três parcelas de 400 m², distanciadas 10 metros entre si. Para a verificação dos fatores abióticos foram utilizados termômetro (tempera...
The aim of this study is the qualitative and quantitative characterization of solid waste and its relationship with predatory fishing in the mangrove ecosystem of Mundaú Lagoon, Alagoas, Brazil.
Mangroves are important coastal ecosystems, situated at the interface between terrestrial and marine environments, and are characteristic of tropical and subtropical regions. They are considered to be one of the most productive ecosystems in the world, responsible for providing a variety of ecosystem services. The characterization of its structure...
Mangroves provide niches for diverse groups of animals that use it in their feeding, breeding, spawning and growing, and serve as coastal protectors against erosion by reducing the force of the tides. The Mangrove Ecological Reserve of Lagoa do Roteiro
in the state of Alagoas is of great importance for the preservation of wildlife (flora and
fauna)...
The mangrove is a transition coastal ecosystem between the terrestrial and the marine environments, occurring in areas that can have estuaries, bays and lagoons, and presents favorable conditions to feeding, protecting and reproduction of many animal species, been considered an important transformer of nutrients into organic matter and a good and s...
O chumbo é dos elementos mais comuns no meio ambiente, sobretudo em razão das inúmeras atividades industriais as quais é requisitado. Em uma de suas rotas de contaminação o ambiente marinho é afetado por dejetos que contém o metal que é posteriormente depositado no sedimento e absorvido pela bioata na qual é bioconcentrado. Crustáceos decápodas vem...
Os siris do gênero Callinectes possuem hábito bentônico detritívoro e habitam águas costeiras rasas, boca de rios, córregos e estuários, locais estes que vêm recebendo ao longo dos anos descarte de inúmeros resíduos sólidos e líquidos, urbanos e industriais. Tais organismos auxiliam na reciclagem de nutrientes tornando-os disponíveis para outros ní...
Portunid crabs play the role of top predators in aquatic environments, affecting the size and abundance structure of their prey populations. The objective of this study was to evaluate temporally the natural feeding of Callinectes bocourti in the fluvial-marine plain of São Francisco river through analysis of the contents of the anterior intestines...
Eugerres brasilianus é uma das principais espécies de peixe comercial no Nordeste do Brasil e no baixo rio São Francisco. O objetivo deste estudo foi avaliar a estrutura populacional da espécie na região. Os peixes foram coletados mensalmente com rede de emalhe entre maio e dezembro de 2013. De 95 indivíduos capturados, 80% eram fêmeas com compri...
The genus Callinectes is represented by six species in the Brazilian coast. They practise a key role in the trophic relationships of benthic communities, as a food resource for other aquatic organisms and coastal birds, as bioindicators of environmental quality and are an important food resource for communities in coastal regions. Knowing the repro...
Callinectes bocourti A. Milne Edwards, 1879 is an important resource from an ecological and economic point of view and several studies related to its biology, morphology, growth, among others were carried out. The study of its abundance brings information about the structure of a given population and the study of growth reveals population patterns...
Natural diet of the blue crab Callinectes sapidus (Decapoda, Portunidae) in the Patos Lagoon estuary area, Rio Grande, Rio Grande do Sul, Brazil. The Southern Brazil blue crab Callinectes sapidus Rathbun, 1869 is the most abundant crab of the genus Callinectes in Patos Lagoon estuary. Although this species is widely distributed throughout the Patos...
RESUMO No presente estudo foram analisados os efeitos letais e sub-letais do inseticida organofosforado Malation em juvenis do siri-azul Callinectes sapidus aclimatados a duas condições osmorregulatórias (hiper-osmorregulação e osmoconformação). A escolha destas duas condições fora baseadas em experimentos prévios onde determinou-se os padrões iono...
