The effects of acute hypoxia and hypercapnia on oxygen consumption of the freshwater European eel
Cruz-Neto, A.P.; Steffensen, J.F. (1997). The effects of acute hypoxia and hypercapnia on oxygen consumption of the freshwater European eel. J. Fish Biol. 50(4): 759-769
In: Journal of Fish Biology. Fisheries Society of the British Isles: London,New York,. ISSN 0022-1112; e-ISSN 1095-8649, meer
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| Trefwoorden |
Chemical compounds > Carbon compounds > Atmospheric gases > Carbon dioxide
Chemical elements > Nonmetals > Atmospheric gases > Oxygen > Dissolved gases > Dissolved oxygen
Diseases > Human diseases > Hypercapnia
Diseases > Human diseases > Hypoxia
Fish culture
Oxygen consumption
Anguilla anguilla (Linnaeus, 1758) [WoRMS]
Marien/Kust; Zoet water |
| Auteurs | | Top |
- Cruz-Neto, A.P.
- Steffensen, J.F.
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| Abstract |
When exposed to hypoxia, eels Anguilla anguilla were able to regulate and maintain VO2 down to a water oxygen tension (PwO2) of about 25 mmHg, a value far below those reported in other studies. When exposed to hypercapnia, eels showed a depression in VO2 as water carbon dioxide tension (PwCO2) increased. Faced with combined hypoxia-hypercapnia, eels showed an increase in their sensitivity to hypoxia, and the critical oxygen tension increased to 40-45 mmHg. The possible mechanisms underlying these responses were discussed, and the implications of such findings for extensive culture of eels were highlighted. |
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