Barnacles
Mostrando 13-19 de 19 artigos, teses e dissertações.
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13. Estudo qualitativo da sucessÃo ecolÃgica, recrutamento e do tratamento "anti-fouling" convencional em organismos incrustantes, na regiÃo portuÃria de Suape-Pernambuco, Brasil
The "fouling", process of adhesion, settling and development of beings livings on living and not living materials on a submerged substratum, can be harmful when it is established on structures constructed for the man. The knowledge of the biological and ecological processes in the fouling community, shows particular elements in accordance with the geographic
Publicado em: 2003
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14. Gregarine Cephaloidophora communis mawrodiadi, 1908 in the barnacle Euraphia rhyzophorae, Oliveira, 1940 from Brazil
The gregarine Cephaloidophora communis was observed for the first time in Brazil in the barnacles Euraphia rhyzophorae collected in Angra dos Reis, Rio de Janeiro, Brazil, between 1990 and 1996. Histological studies showed growth phases of the parasite in specific parts of the digestive system. The intracellular forms occurred in the vacuoles of the intestin
Memórias do Instituto Oswaldo Cruz. Publicado em: 2002-10
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15. Larval settlement rate: A leading determinant of structure in an ecological community of the marine intertidal zone
Field studies demonstrate that the population structure of the barnacle Balanus glandula differs between locations of high and low larval settlement rate. These observations, together with results from a model for the demography of an open, space-limited population, suggest that the settlement rate may be a more important determinant of rocky intertidal comm
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16. Phosphatic shell plate of the barnacle Ibla (Cirripedia): a bone-like structure.
The carbonate apatite crystals and the segmented structure of the shell plates of the barnacles in the genus Ibla distinguish them from the shell plates of all other barnacles, which are coherent calcitic structures. A detailed study of the hierarchical organization of one of the two shell plate types, the tergum, reveals a remarkably complex structure. Cyli
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17. Water-borne stimuli released by predatory crabs and damaged prey induce more predator-resistant shells in a marine gastropod
Individuals of the morphologically variable, rocky intertidal gastropod Thais (or Nucella) lamellosa developed larger apertural teeth when held in the presence of the predatory crab Cancer productus than when held in its absence, regardless of whether snails were fed or not. In addition, among fed snails larger apertural teeth were produced in the presence o
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18. The effects of diet and physiological stress on the evolutionary dynamics of an enzyme polymorphism.
In the northern acorn barnacle Semibalanus balanoides, polymorphism at the mannose-6-phosphate isomerase (Mpi) locus appears to be maintained by distinct selection regimes that vary between intertidal microhabitats. The goal of the present experiment was to elucidate the mechanism of selection at the Mpi locus by examining the relationship between genotype a
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19. Precise tuning of barnacle leg length to coastal wave action.
Both spatial and temporal variation in environmental conditions can favour intraspecific plasticity in animal form. But how precise is such environmental modulation? Individual Balanus glandula Darwin, a common northeastern Pacific barnacle, produce longer feeding legs in still water than in moving water. We report here that, on the west coast of Vancouver I