Consulta: subjectFacets:"Portuguese oyster"
Registros recuperados: 1
Data/hora: 06/06/2024 10:47:09

Activite mecanique comparee des huitres portugaises et des Ciones, Epibiontes.
Provedor de dados: 5
Autores: Le Borgne-david, A.
The Portuguese oyster (Crassostrea angulata) and the sea-squirt Ciona intestinalis are both filter-feeders and compete for space in the oyster beds. Valve movement in oysters and shortening and elongation in Ciona were recorded on a smoked drum. Oysters showed a slow (3 one half min) spontaneous opening/closing rhythm, which was speeded up by stimulatory (vitamin) substances and increased in amplitude by toxic accumulated waste substances, or sudden change in temperature. Ciona showed a regular contraction rhythm of similar to 1 min and single sharp shortening after a strong light stimulus or a food particle touch stimulus to the oral tentacles. The neural ganglion discharges spikes 3 times faster than in the dark, after light stimulation. Filtration rates...
Tipo: Text
Palavras-chave: Stimulation; Rhythm; Temperature; Crassostrea angulata; Portuguese oyster.
Ano: 1972
URL: http://archimer.ifremer.fr/doc/1972/publication-2052.pdf