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 mi kg(-1) body weight was found, a value even higher than that previously found in another icefish, Chaenocephalus aceratus (mean blood volume, 89.7 mi kg(-1) body weight; Hemmingsen and Douglas [1970] Comp. Biochem. Physiol., 33:733-744; Twelves [1972] Br. Antarct. Surv. Bull. 31:85-92). This extraordinary hypervolemia appears unique among teleosts and may compensate for the absence of hemoglobin in the icefish. (C) 1995 Wiley-Liss, Inc.
Blood-volume In the Hemoglobinless Antarctic Teleost Chionodraco-hamatus (Lonnberg) / R., Acierno; J. A., Macdonald; Agnisola, Claudio; B., Tota. - In: JOURNAL OF EXPERIMENTAL ZOOLOGY. - ISSN 0022-104X. - STAMPA. - 272:(1995), pp. 407-409. [10.1002/jez.1402720510]
Blood-volume In the Hemoglobinless Antarctic Teleost Chionodraco-hamatus (Lonnberg)
AGNISOLA, CLAUDIO;
1995
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 mi kg(-1) body weight was found, a value even higher than that previously found in another icefish, Chaenocephalus aceratus (mean blood volume, 89.7 mi kg(-1) body weight; Hemmingsen and Douglas [1970] Comp. Biochem. Physiol., 33:733-744; Twelves [1972] Br. Antarct. Surv. Bull. 31:85-92). This extraordinary hypervolemia appears unique among teleosts and may compensate for the absence of hemoglobin in the icefish. (C) 1995 Wiley-Liss, Inc.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
