© 2003 The Company of Biologists Ltd doi:10.1242/jeb.00352 Tolerance of chronic hypercapnia by the European eel Anguilla anguilla
Lomholt (1990), however, measured water PwCO # levels exceeding 30mmHg in European eel farms using closed-cycle recirculating water systems. It is unlikely that teleosts would ever experience such severe hypercapnia in nature, and no previous investigations into the effects of chronic hypercapnia ha...
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| Language: | English |
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| Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1.4880 http://www.mbl.ku.dk/JFSteffensen/JexpBiol03-DM.pdf |
| Summary: | Lomholt (1990), however, measured water PwCO # levels exceeding 30mmHg in European eel farms using closed-cycle recirculating water systems. It is unlikely that teleosts would ever experience such severe hypercapnia in nature, and no previous investigations into the effects of chronic hypercapnia have employed a PwCO # of above 25mmHg and rarely for longer than 10 days (Heisler, 1984, 1993; Dimberg, 1988; Larsen and Jensen, 1997; Fivelstad et al., 1998, 1999). Unusually low plasma Cl concentrations have, however, been reported to occur spontaneously in the 1717 The Journal of Experimental Biology 206, 1717-1726 2003 The Company of Biologists Ltd doi:10.1242/jeb.00352 European eels were exposed for 6 weeks to water CO2 partial pressures (PCO #) from ambient (approx. 0.8mmHg), through 151mmHg and 301mmHg to 451mmHg in water with a total hardness of 240mgl as CaCO3 , pH 8.2, at 231C. Arterial plasma PCO # equilibrated at approximately 2mmHg above water PCO # in all groups, and |
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