High concentrations of methemoglobin in five species of temperate marine teleosts

The Journal of Experimental Zoology
M S Graham, G L Fletcher

Abstract

Blood samples from five species of marine teleosts were assayed for methemoglobin (metHb) levels during winter and summer acclimatization. There was at least 7% total hemoglobin in the met-form in all species, and as high as 27% in one species, the Atlantic cod (Gadus morhua). There was significant seasonal variation in metHb levels for three of the five species, the highest values occurring during the winter months; cunners (Tautogolabrus adspersus) 15.6% in winter and 10.1% in the summer, shorthorn sculpin (Myoxocephalus scorpius) 20.0% in the winter and 8.19% in the summer, longhorn sculpin (Myoxocephalus octodecemspinosus) 17.3-21.6% in the winter and 8.12% in the summer. The winter flounder (Pseudopleuronectes americanus) and the Atlantic cod maintained metHb concentrations constant throughout the year: 13% and 27%, respectively. There does not appear to be any relationship between the activity of a fish and the level of metHb in its blood.

References

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Citations

Oct 1, 1991·The Journal of Experimental Zoology·M Paajaste, M Nikinmaa
Jan 1, 1989·Archives of Toxicology·J W Nichols, L J Weber
Oct 26, 1999·Comparative Biochemistry and Physiology. Part C, Pharmacology, Toxicology & Endocrinology·J L Marcon, D W Filho
Feb 7, 2001·The Journal of General Physiology·A Y Bogdanova, M Nikinmaa
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Sep 2, 2004·Protein Science : a Publication of the Protein Society·Cinzia VerdeGuido Di Prisco
Dec 14, 2011·The Journal of Experimental Biology·Ben Speers-RoeschGillian M C Renshaw

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