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Blood volume in the hemoglobinless Antarctic teleostChionodraco hamatus (Lönnberg)

✍ Scribed by Acierno, R. ;MacDonald, J. A. ;Agnisola, C. ;Tota, B.


Book ID
102336505
Publisher
John Wiley and Sons
Year
1995
Tongue
English
Weight
278 KB
Volume
272
Category
Article
ISSN
0022-104X

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✦ Synopsis


Abstract

Blood volume in the hemoglobinless Antarctic icefish Chionodraco hamatus (Channichthyidae) has been determined by the Evans blue dye dilution technique. A mean blood volume of 127.0 ± 5.0 ml kg^−1^ body weight was found, a value even higher than that previously found in another icefish, Chaenocephalus aceratus (mean blood volume, 89.7 ml kg^−1^ body weight; Hemmingsen and Douglas [1970] Comp. Biochem. Physiol., 33:733–744; Twelves [1972] Br. Antarct. Surv. Bull. 37:85–92). This extraordinary hypervolemia appears unique among teleosts and may compensate for the absence of hemoglobin in the icefish. © 1995 Wiley‐Liss, Inc.


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