Aquatic Animals
Mostrando 25-36 de 78 artigos, teses e dissertações.
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25. Water dispersal of Amphisbaena alba and Amphisbaena amazonica (Squamata: Amphisbaenia: Amphisbaenidae) in Brazilian Amazonia
Information on the use of aquatic environments by two species of amphisbaenids (Amphisbaena amazonica Vanzolini, 1951 and Amphisbaena alba Linnaeus, 1758) are presented. These findings suggest that aquatic environments are not a barrier to these animals, until now considered as strictly fossorial. New studies on amphisbaenians in natural conditions are neede
Zoologia (Curitiba). Publicado em: 04/09/2009
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26. Estimates of DNA strand breakage in bottlenose dolphin (Tursiops truncatus) leukocytes measured with the Comet and DNA diffusion assays
The analysis of DNA damage by mean of Comet or single cell gel electrophoresis (SCGE) assay has been commonly used to assess genotoxic impact in aquatic animals being able to detect exposure to low concentrations of contaminants in a wide range of species. The aims of this work were 1) to evaluate the usefulness of the Comet to detect DNA strand breakage in
Genetics and Molecular Biology. Publicado em: 06/03/2009
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27. Estudo das interações fitoplâncton-protozooplâncton no reservatório de Barra Bonita, SP, com ênfase na toxicidade de microcistinas
The increasing eutrophication of aquatic environments, resulting from the human activities, is related to cyanobacterial blooms that are described, all over the world, as the agents causing toxicity and death in humans, domestic and wild animals. Recently, studies are being conducted aiming to prove the possibility of the biotransference of the cyanobacteria
Publicado em: 2009
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28. Toxicidade subcrônica de lambaris Astyanax aff. bimaculatus expostos ao zinco / Subchronic toxicity in Astyanax aff. bimaculatus exposed to zinc.
Many metals occur naturally in aquatic environments and are classified as pollutants only when added by men in sufficient amounts to produce deleterious effects on organisms. Among these metals already existent on the aquatic environment it can be mentioned zinc (Zn) which is an essential element for living beings. In high concentrations, zinc can become tox
Publicado em: 2009
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29. efeito da aplicação de uma solução salina no crescimento e na composição química da atriplex nummularia
This study aimed to analyze the effect of a saline solution on growth and chemical composition of Atriplex nummularia, shrubby plant, absorbing salts used in the diet of animals and the management of water and saline soils. These plant seedlings were planted and grown in a reserved area at the Federal University of Rio Grande do Norte. The plantation was div
Publicado em: 2009
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30. Efeitos do treinamento resistido associado com decanoato de nandrolona sobre a expressão gênica de moduladores de vias de hipertrofia e atrofia do músculo esquelético
Androgenic-anabolic steroids (AAS) are spread among athletes and no athletes in order to improve performance or physical appearance. AAS targets the satellite cells in skeletal muscles, which are the major precursors of the skeletal muscle, and are essential for muscle growth and repair. When activated, in the presence of several factors, including myogenic
Publicado em: 2009
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31. Development of immunoassay techniques to detect microcystin in environmental samples / Desenvolvimento de técnicas de imunoensaio para detecção de microcistina em amostras ambientais
The contamination of drinking water by cyanobacterial toxins is a public health issue and a concern for water authorities throughout the world. Microcystin-LR (MCLR) is a hazardous cyclic heptapeptide cyanotoxin, which inhibits protein phosphatase PP1 and PP2A in hepatocytes. Microcystins are produced by several genera of cyanobacteria and presents more than
Publicado em: 2009
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32. Adenovirus molecular detection and seasonal monitoring in bodies of water in the municipality of Goiânia, Goiás-Brazil: correlation with physical-chemical and bacteriological parameters and meta-analysis to evaluate methodologies / Detecção molecular e monitoramento sazonal de adenovírus em águas fluviais no município de Goiânia, Goiás-Brasil: correlação com parâmetros físico-químicos, bacteriológicos e Metanálise avaliativa de metodologias
Although water is of vital importance for living beings, due to antropic action it becomes a way of dissemination of several microorganisms, which reach aquatic environments through the faeces of man and other animals and can cause several illnesses, especially for immunocompromised individuals. During routine environmental monitoring, coliform bacteria are
Publicado em: 2009
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33. Streptococcus iniae E Streptococcus dysgalactiae ASSOCIADOS Ã MENINGOENCEFALITE E SEPTICEMIA EM TILÃPIAS DO NILO NO BRASIL / Streptococcus iniae AND Streptococcus dysgalactiae ASSOICIATED WITH MENINGOENCEPHALITIS AND SEPTICEMIA IN NILE TILAPIA IN BRAZIL
Pisciculture is a relatively recent branch of agorbussines in Brazil although a large increase has been observed in recent decades Tilapia is the mainly cultivate fish in Brazil in view of the fact that this specie had a great acceptance in the consumer market and large resistance to environment variations The major sources of fish production damage worldwid
Publicado em: 2009
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34. Comportamento do peixe-boi (Trichechus manatus manatus) nos oceanÃrios de ItamaracÃ: manejo e condiÃÃes abiÃticas
The aim of this study was to observe and describe the behavior of marine manatees, kept in captivity for rehabilitation and further release on their natural environment. To define the behavior pattern of these animals, their affiliate courtship activities and agonistic conducts were observed, verifying the presence of associations among group members, during
Publicado em: 2008
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35. Ecology of zooplanktonic communities associated with palm swamp ponds in Uberlândia, MG / Ecologia de comunidades zooplanctônicas em lagoas associadas a veredas no município de Uberlândia, MG
Ponds of veredas, a palm swamp environment associated with headwaters, appears among the most important continental aquatic habitats on the planet. In these ponds, banks of macrophytes occurs with frequency, maintaining the aquatic productivity and the increase of habitat heterogeneity, thereby generating great biological diversity in their environment. One
Publicado em: 2008
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36. Metodologia para gestão do risco da Síndrome de Taura no Brasil devido à importação de pós-larvas de camarão
Risk analysis is a science-based method to assist decision-makers make consistent and transparent arguments and decisions in face of uncertainty and natural variability. The concept of risk involves the likelihood of the occurrence of an adverse effect and the magnitude of its consequences. This study developed a methodology for qualitative risk assessment o
Publicado em: 2008