| Registro completo |
| Provedor de dados: |
ArchiMer
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| País: |
France
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| Título: |
Temperature resistance of Hesiolyra bergi, a polychaetous annelid living on deep-sea vent smoker walls
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| Autores: |
Shillito, Bruce
Jollivet, Didier
Sarradin, Pierre-marie
Rodier, Philippe
Lallier, François
Desbruyeres, Daniel
Gaill, Françoise
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| Data: |
2001-07
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| Ano: |
2001
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| Palavras-chave: |
IPOCAMP
Adaptation to heat
Behaviour
Hydrothermal vents
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| Resumo: |
For the first time, in vivo heat-exposure experiments were conducted on the hydrothermal vent polychaete Hesiolyra bergi from the hottest part of the vent biotope. Using a pressurised incubator equipped with video-facilities, we found that H. bergi, which forages around and in the tubes of the thermophilic Alvinella sp., became hyperactive once temperature exceeded 35 degreesC and further lost co-ordination in the 41 to 46 degreesC interval, just before death occurred. Another exposure experiment at 39 degreesC for 3 to 4 h led to 80 % mortality (max) 9 h after heat shock, and 100 % thereafter. In view of the much higher temperatures recorded in this organism's habitat, these results suggest that tolerance to high temperatures (exceeding 40 degreesC) is not a pre-requisite for life amongst alvinellid tubes. Behavioural responses (escape from heat) may suffice.
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| Tipo: |
Text
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| Idioma: |
Inglês
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| Identificador: |
https://archimer.ifremer.fr/doc/2001/publication-811.pdf
DOI:10.3354/meps216141
https://archimer.ifremer.fr/doc/00000/811/
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| Editor: |
Inter-Research
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| Formato: |
application/pdf
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| Fonte: |
Marine Ecology Progress Series (0171-8630) (Inter-Research), 2001-07 , Vol. 216 , P. 141-149
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| Direitos: |
2001 Inter-Research
info:eu-repo/semantics/openAccess
restricted use
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