Marine Invertebrates
Mostrando 1-12 de 75 artigos, teses e dissertações.
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1. Growth and antioxidant response of juvenile oysters Crassostrea sikamea and Crassostrea corteziensis treated with Streptomyces strains
RESUMO O efeito de três culturas Streptomyces (N7, RL8 e V4) e uma mistura de Bacillus (BMix) sobre o cresimento (Peso, Tamanho) e atividade superóxido dismutase (SOD) em ostras jovens Crassostrea corteziensis e Crassostrea sikamea cultivadas artificalmente foi investigado para determinar seu potencial probiótico. Microorganismos foram adicionados à águ
Arq. Bras. Med. Vet. Zootec.. Publicado em: 13/12/2019
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2. Spatial distribution in marine invertebrates in rocky shore of Araucania Region (38° S, Chile)
Resumo As costas rochosas no Chile têm uma ampla diversidade de espécies de invertebrados, que incluem espécies com abundância marcada em determinadas regiões. O objetivo do presente estudo é analisar o padrão de distribuição espacial em diferentes espécies de invertebrados marinhos na costa rochosa da região de Araucanía, considerando se essas e
Braz. J. Biol.. Publicado em: 05/08/2019
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3. Biological activities of marine invertebrates extracts from the northeast brazilian coast
Resumo Este artigo reporta as atividades in vitro antiproliferativa, atiprotozoárica, anti-herpética e antimicrobiana de 32 extratos orgânicos provenientes de 14 esponjas marinhas e 14 corais coletados no litoral nordestino brasileiro. Os extratos etanólicos das esponjas Amphimedon compressa e Tedania ignis, e o extrato acetônico de Dysidea sp. demonstr
Braz. J. Biol.. Publicado em: 05/08/2019
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4. Sexual and reproductive traits of the pearl oyster shrimp Pontonia margarita (Decapoda: Palemonidae), symbiotically inhabiting the mantle cavity of the rugose pen shell Pinna rugosa (Bivalvia: Pinnidae)
ABSTRACT Symbiosis between decapods and mollusks provides a unique opportunity to examine some of the evolutionary strategies employed by marine invertebrates. We describe the sexual and reproductive traits of the pearl oyster shrimp, Pontonia margarita Verril, 1869, found symbiotically inhabiting the mantle cavity of the rugose pen shell, Pinna rugosa Sower
Zoologia (Curitiba). Publicado em: 13/06/2019
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5. Natural Products from Marine Invertebrates and Microorganisms in Brazil between 2004 and 2017: Still the Challenges, More Rewards
The Brazilian marine biodiversity represents a unique, yet underexplored resource of biologically active compounds. This review provides an analysis of the development of marine natural products chemistry in Brazil within the period comprised between 2004 and 2017. Emphasis is directed towards marine invertebrate and marine microorganisms metabolites, includ
J. Braz. Chem. Soc.. Publicado em: 2018-05
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6. Thermal tolerance of the zoea I stage of four Neotropical crab species (Crustacea: Decapoda)
ABSTRACT Although larval stages are often considered particularly vulnerable to stressors, for many marine invertebrates studies of thermal tolerance have focused on adults. Here we determined the upper thermal limit (LT50) of the zoea I of four Caribbean crab species (Macrocoeloma trispinosum, Aratus pisonii, Armases ricordi, and Minuca rapax) and compared
Zoologia (Curitiba). Publicado em: 26/04/2018
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7. The Influence of Brazilian Biodiversity on Searching for Human Use Pharmaceuticals
This relatively short review will cover the history of some potential drug entities whose beginnings were from Brazilian flora and fauna that led to scientific findings many years later that could not even have been thought of at the time of their initial discovery. The first two are the discoveries of the effects of peptidic toxins from the highly poisonous
J. Braz. Chem. Soc.. Publicado em: 2017-03
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8. Early Devonian (Late Emsian) shark fin remains (Chondrichthyes) from the Paraná Basin, southern Brazil
ABSTRACT We report on the pioneering discovery of Devonian fish remains in the Paraná Basin, which represents the southernmost record of fishes from that period in mainland South America. The material comes from an outcrop at the lower portion of the São Domingos Formation, within Sequence C of the Paraná-Apucarana sub-basin in Tibagi, State of Paraná. M
An. Acad. Bras. Ciênc.. Publicado em: 2017-03
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9. Invading the natural marine substrates: a case study with invertebrates in South Brazil
ABSTRACT The number of biological invasions has grown dramatically in recent decades, as well as the world's human population and coastal development. Anthropogenic habitats, such as pier pilings and break waters, have been constantly added to marine environment, usually concentrated in estuarine areas. These habitats are focal points for marine invasions, b
Zoologia (Curitiba). Publicado em: 20/06/2016
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10. Antimicrobial (including antimollicutes), antioxidant and anticholinesterase activities of Brazilian and Spanish marine organisms – evaluation of extracts and pure compounds
Abstract This work describes the antimicrobial, antioxidant and anticholinesterase activities in vitro of organic extracts from fourteen seaweeds, eleven sponges, two ascidians, one bryozoan, and one sea anemone species collected along the Brazilian and Spanish coast, as well as the isolation of the diterpene (4R, 9S, 14S)-4α-acetoxy-9β,14α-dihydroxydolas
Rev. bras. farmacogn.. Publicado em: 2015-12
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11. Hemagglutinating/Hemolytic activities in extracts of marine invertebrates from the Brazilian coast and isolation of two lectins from the marine sponge Cliona varians and the sea cucumber Holothuria grisea
Vinte espécies de invertebrados marinhos, coletados na costa brasileira, foram avaliados quanto à presença de atividade hemaglutinante/hemolítica. Em pelo menos doze espécies testadas, a atividade hemaglutinante foi diferencial para diferentes grupos sanguíneos, sugerindo a presença de lectinas. Extratos de quatro espécies apresentaram atividade hemo
An. Acad. Bras. Ciênc.. Publicado em: 08/05/2015
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12. Metabólitos secundários bioativos e mediadores de relação predador/presa de invertebrados marinhos / Bioactive secondary metabolites and predator/preys relationship mediators from marine invertebrates
A presente investigação teve por objetivo o isolamento de metabólitos secundários biologicamente ativos de nudibrânquios, moluscos conhecidos por produzirem ou acumularem substâncias a partir de suas presas. Foram investigados extratos de quatro espécies de nudibrânquios marinhos juntamente com suas respectivas presas. Além disso, também foi invest
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 24/01/2012