Marine Invertebrates
Mostrando 25-36 de 75 artigos, teses e dissertações.
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25. A carbohydrate-based mechanism of species recognition in sea urchin fertilization
In the present review, we describe a systematic study of the sulfated polysaccharides from marine invertebrates, which led to the discovery of a carbohydrate-based mechanism of sperm-egg recognition during sea urchin fertilization. We have described unique polymers present in these organisms, especially sulfated fucose-rich compounds found in the egg jelly c
Brazilian Journal of Medical and Biological Research. Publicado em: 2007-01
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26. Taxonomy of invertebrate fossils (Oligocene-Miocene) from the King George island (West Antarctica) and paleobiogeography of cenozoic Bivalvia from Antarctica / Taxonomia de invertebrados fósseis (Oligoceno-Mioceno) da ilha Rei George (Antártica ocidental) e paleobiogeografia dos Bivalvia cenozóicos da Antártica
The research presented in this dissertation comprised part of the CNPq - PROANTAR Project 550352/02-3 "Mudanças paleoclimáticas na Antártica durante o Cenozóico: o registro geológico terrestre", which studies Cenozoic deposits from King George Island in order to elucidate the environmental and climatic Cenozoic histories of this Antarctic region. Cenozo
Publicado em: 2007
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27. A ictiofauna do estuário do rio Itanhaém, SP, Brasil: dinâmica espaço-temporal e aspectos biológicos das espécies principais / Itanhaém River Estuary, SP, Brazil: Spatial and seasonal changes in fish assemblages and biological aspects of the principal species
The changes of the composition and the distribution of the fishes along the Itanhaém River Estuary were investigated, between May 2002 and April 2003. Biologic aspects of principal species were also included. The month sampling of the fishes was performed using otter trawls in three different areas in the estuary (A1, A2 and A3). Samples were also collected
Publicado em: 2007
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28. Análise da expressão de enterolobina em sementes e calos vegetais de Enterolobium contortisiliquum
Cytolytic toxins are produced by a variety of living organisms, particularly bacteria, certain insects, poisonous reptiles and stinging marine invertebrates. Many of these toxins appear to function simply by forming pores in cell membranes, disrupting the permeability barrier and leading eventually to cell death. However, few examples have been studied in pl
Publicado em: 2007
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29. EFEITOS DO PETRÓLEO SOBRE A ASSOCIAÇÃO DE MACROINVERTEBRADOS BENTÔNICOS DE PRAIAS ARENOSAS DO EXTREMO SUL DO BRASIL.
The benthic marine organisms in the sand beach intertidal zone have a great ecological complexity, being a major trophic link among the phytoplankton, organic detritus and the higher trophic levels. Any anthropogenic disturbance that affects these organisms, such as an oil spill can cause changes in all trophic levels of coastal communities. Due to their sed
Publicado em: 2005
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30. Isolamento de enterococos e coliformes fecais de ostras (Crassostrea rhizophorae) comercializadas na praia do futuro, Fortaleza, CearÃ. / Isolation of enterococos and fecais coliformes of oysters (Crassostrea rhizophorae) sold in the beach of the Futuro, Fortaleza, CearÃ.
Foram estimados o NÃmero Mais ProvÃvel (NMP) de enterococos e de coliformes termotolerantes de 60 amostras de ostras (Crassostrea rhizophorae) comercializadas em duas barracas: A e B, na Praia do Futuro em Fortaleza â CE, no perÃodo de setembro de 2000 a setembro de 2001. Cada amostra constava de 25 indivÃduos, totalizando assim a anÃlise de aproximada
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 17/02/2003
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31. Antimicrobial Peptides from Marine Invertebrates
American Society for Microbiology.
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32. ENVIRONMENTAL RELATIONS OF MODIFICATION COMPOSITIONS OF CERTAIN CARBONATE SECRETING MARINE INVERTEBRATES
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33. Sterol patterns of cultured zooxanthellae isolated from marine invertebrates: Synthesis of gorgosterol and 23-desmethylgorgosterol by aposymbiotic algae
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34. Blood Cells of Marine Invertebrates: Experimental Systems in Cell Biology and Comparative Physiology. MBL Lectures in Biology
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35. Assimilation of Inorganic Nitrogen by Marine Invertebrates and Their Chemoautotrophic and Methanotrophic Symbionts
Symbioses between marine invertebrates and their chemoautotrophic and methanotrophic symbionts are now known to exist in a variety of habitats where reduced chemical species are present. The utilization of chemical energy and reliance on C1 compounds by these symbioses are well documented. Much less is known about their metabolism of nitrogen. Earlier work h
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36. Electrochemical Prevention of Marine Biofouling with a Carbon-Chloroprene Sheet
A carbon-chloroprene sheet (CCS) electrode was used for the electrochemical disinfection of the marine gram-negative bacterium Vibrio alginolyticus. When the electrode was incubated in seawater containing 105 cells per ml for 90 min, the amount of adsorbed cells was 4.5 × 103 cells per cm2. When a potential of 1.2 V versus a saturated calomel electrode was