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