| Autor: |
Ultsch, Gordon, Jackson, Donald, Moalli, Richard |
| Zdroj: |
Journal of Comparative Physiology; Jun1981, Vol. 142 Issue 4, p439-443, 5p |
| Abstrakt: |
The relationship between the ambient oxygen tension of the medium and the standard rate of oxygen consumption of toadfish ( Opsanus tau) was reinvestigated. The toadfish, previously reported to be a metabolic oxygen conformer, actually is a metabolic oxygen regulator in a manner similar to most other fishes, with a critical oxygen tension ( P) of 29.3±3.5 mm Hg $$(\bar x \pm S.E.)$$ at 22 °C. This contradiction of a classical example of O conformity in a lower vertebrate, when considered with other conflicting evidence for O conformity among lower vertebrates, suggests that the concept that there are lower vertebrates that routinely exhibit metabolic O conformity may be questionable, especially for forms with no obvious limitation of O transport mechanisms. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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