Gastropod
Mostrando 13-24 de 60 artigos, teses e dissertações.
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13. Rodriguesic acids, modified diketopiperazines from the gastropod mollusc Pleurobranchus areolatus
O presente estudo foi realizado com dois espécimes do molusco nudipleura Pleurobranchus areolatus que demonstraram acumular derivados oxidados da rodriguesina A. O ácido rodriguêsico apresenta um grupo ácido carboxílico no lugar do grupo metila de uma cadeia alquila terminal da rodriguesina A. Um grupo hidroxamato foi observado na porção dicetopiperaz
J. Braz. Chem. Soc.. Publicado em: 2014-04
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14. Shell occupation by the South Atlantic endemic hermit crab Loxopagurus loxochelis (Moreira, 1901) (Anomura: Diogenidae)
The evaluation of population characteristics, particularly those of endemic species, aids in population preservation and management. Hermit crabs present an innate behavior of occupying shells, which tends to individual needs and limits their distribution. This study characterized the pattern of occupation of gastropod shells by the hermit Loxopagurus loxoch
Nauplius. Publicado em: 2013-12
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15. RelaÃÃes ecolÃgicas entre Melampus coffeus (Gastropoda: Pulmonata) e a serapilheira no mÃdio estuÃrio do rio Pacoti, Cearà / Ecological relations between Melampus coffeus (Gastropoda: Pulmonata) and the leaflitter in the middle estuary of Pacoti river, CearÃ
The litter is essential for the nutrients and organic matter cycles in forests ecosystems. These vegetal detritus are a food source to many groups of animals that act directly on the litter decomposition. Litter also seems to provide microhabitats and works as a shelter for many individuals of the mangrove fauna. The gastropod Melampus coffeus (Linnaeus, 175
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/04/2011
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16. Variação na disponibilidade de oxigênio e respostas antioxidantes no gastrópode Helix aspersa / Variation in oxygen disponibility and antioxidants responses in the gastropod Helix aspersa
O gastrópode terrestre Helix aspersa (Müller) é um herbívoro generalista, que habita a região mediterrânea. Os gastrópodes terrestres em geral entram em estados dormentes durante o seu ciclo de vida. A dormência é uma forma de inatividade associada a uma redução na taxa metabólica, sem grandes alterações no estado hídrico do animal (Withers &C
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 15/04/2011
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17. Morphological description of the gastropod Heleobia australis (Hydrobiidae) from egg to hatching
Brazilian Journal of Oceanography. Publicado em: 2010-09
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18. Differences on allocation of available resources, in growth, reproduction, and survival, in an exotic gastropod of Physidae compared to an endemic one
Physa acuta Draparnaud, 1805 is an invasive gastropod that can affect local species. In Argentina, it is widespread and abundant, even in environments inhabited by the native species Stenophysa marmorata Guilding, 1828. Its predominance raises the question whether this could be explained by a more successful energy allocation in functional requirements (grow
Iheringia. Série Zoologia. Publicado em: 2010-09
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19. Archaeozoology of marine mollusks from Sambaqui da Tarioba, Rio das Ostras, Rio de Janeiro, Brazil
A reference inventory of prehistoric marine mollusks from the Rio das Ostras region was created based on an excavation carried out at the Sambaqui da Tarioba shellmound. Patterns of richness and biogeography were studied, and the representativeness of bivalve and gastropod diversities found at this archaeological site were inferred. A total of 47 taxa belong
Zoologia (Curitiba). Publicado em: 2010-06
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20. Epibiont occurrence on gastropod shells used by the hermit crab Loxopagurus loxochelis (Anomura: Diogenidae) on the northern coast of São Paulo, Brazil
Gastropod shells occupied by hermit crabs are an important attachment substrate for epifauna, and these shells are often damaged. The present study aimed to characterize the epibionts and extent of damage for gastropod shells occupied by the hermit crab Loxopagurus loxochelis (Moreira, 1901). Samples were collected monthly over a period of one year (from Jul
Zoologia (Curitiba). Publicado em: 2010-04
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21. Monoamines in the pedal plexus of the land snail Megalobulimus oblongus (Gastropoda, Pulmonata)
In molluscs, the number of peripheral neurons far exceeds those found in the central nervous system. Although previous studies on the morphology of the peripheral nervous system exist, details of its organization remain unknown. Moreover, the foot of the terrestrial species has been studied less than that of the aquatic species. As this knowledge is essentia
Publicado em: 2010
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22. Nassarius vibex (Gastropoda, Nassariidae): crescimento e reprodução em bancos de mitilídeos de substrato areno-lamoso na costa sudeste do Brasil / Nassarius vibex (Gastropoda, Nassariidae): growth and reproduction on soft bottom mitilids beds in the Southeast coast of Brazil
The present study analyzed the characteristics and the associated fauna of two beds of the mitilid Mytella charruana, located on Camaroeiro and Cidade beaches on the northern coast of the state of São Paulo. It also assessed the egg-capsule developmental stages, growth, allometry, reproduction, and recruitment of the gastropod Nassarius vibex, which occurre
Publicado em: 2010
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23. Molluscicidal activity of Hammada scoparia (Pomel) Iljin leaf extracts and the principal alkaloids isolated from them against Galba truncatula
The molluscicidal activity of Hammada scoparia leaf extracts and the principal alkaloids isolated from them (carnegine and N-methylisosalsoline) were tested against the mollusc gastropod, Galba truncatula, the intermediate host of Fasciola hepatica in Tunisia. The results indicated that the molluscicidal activity was correlated with the presence of alkaloids
Memórias do Instituto Oswaldo Cruz. Publicado em: 2009-11
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24. Fossils in quaternary micrites of Bodoquena Range, Bonito-MS and their application in paleoenvironmental studies / Fósseis em micritos quaternários da Serra da Bodoquena, Bonito-MS e sua aplicação em estudos paleoambientais
Bonito town and surrounding areas in Mato Grosso do Sul state are tourist attractions related with many quaternary carbonate deposits which form waterfalls, dams and render almost zero turbidity waters. That area is part of the National Park of Bodoquena Range and Pantanal Biosphere Reserve (UNESCO). Calcareous tufa are porous rocks formed by calcium carbona
Publicado em: 2009