Data/hora: 01/06/2024 06:08:55

Provedor de dados: | 5
País: | France
Título: | Activite mecanique comparee des huitres portugaises et des Ciones, Epibiontes.
Autores: | Le Borgne-david, A.
Data: | 1972-03
Ano: | 1972
Palavras-chave: | Stimulation; Rhythm; Temperature; Crassostrea angulata; Portuguese oyster.
Resumo: | 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 of the 2 organisms seem to be similar.
Tipo: | Text
Idioma: | Francês
Identificador: | http://archimer.ifremer.fr/doc/1972/publication-2052.pdf
Editor: | ISTPM
Relação: | http://archimer.ifremer.fr/doc/00000/2052/
Formato: | application/pdf
Fonte: | Revue des Travaux de l'Institut des Pêches Maritimes (0035-2276) (ISTPM), 1972-03 , Vol. 36 , N. 3 , P. 285-291
Fonte: | Ifremer