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Handa Takeshi


Effect of Water Temperature on Ventilation in the Pacific Oyster Crassostrea gigas

Journal of National Fisheries University Volume 60 Issue 1 Page 63-66
published_at 2011-10
60-1-63-66.pdf
[fulltext] 290 KB
Title
マガキの鰓換水に及ぼす水温の影響
Effect of Water Temperature on Ventilation in the Pacific Oyster Crassostrea gigas
Creators Yamamoto Ken-ichi
Creators Handa Takeshi
Source Identifiers
Creator Keywords
Pacific oyster Ciliary movement Ventilation volume Water temperature
The effect of water temperature on the ventilation in the Pacific oyster Crassostrea gigas was examined by the direct measurement method of ventilation volume. The water temperature was elevated 3℃ every hour. The ventilation volume increased from 1.32 l/min/kg at 20℃ to 2.35 l/min/kg at 26℃ with the rise in the water temperature, and then decreased to 0 l/min/kg at 37℃. The moving speed of vinyl film put on the gill surface (activity of ciliary movement) increased from 31.3 mm/min at 20℃ to 56.3 mm/min at 35℃ , and then decreased to 0 mm/min at 41℃. These results reveal that the Pacific oyster would increase the preying quantity by the increase of the ventilation volume with the rise in the water temperature.
Languages jpn
Resource Type departmental bulletin paper
Publishers National Fisheries University
Date Issued 2011-10
File Version Version of Record
Access Rights open access
Relations
[ISSN]0370-9361