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Comparative Hematology of the Hellbender, Cryptobranchus alleganiensis in Missouri

1973; American Society of Ichthyologists and Herpetologists; Volume: 1973; Issue: 2 Linguagem: Inglês

10.2307/1442972

1938-5110

David P. Jerrett, Charles E. Mays,

Turtle Biology and Conservation

This study compares the hematology of two cryptobranchid salmander populations in Missouri; Cryptobranchus alleganiensis alleganiensis (Daudin) from the Niangua River in Dallas County, and Cryptobranchus alleganiensis bishopi Schmidt from the North Fork of the White River in Ozark County. Determinations included blood cell size, blood cell counts, leucocyte differentiations, pH, hematocrit values, hemoglobin, erythrocyte fragility and coagulation time. Values for leucocyte size, thrombocyte size and number, pH, coagulation time and erythrocyte fragility as well as blood cell photomicrographs are presented for Cryptobranchus for the first time. Mean erythrocyte total length was 49.8 pi for the Niangua population and 43.5 p for the North Fork population. Erythrocyte counts varied from 27,000 per mm3 to 87,850 per mm3 (x 72,544) for the Niangua population and from 48,750 per mm3 to 145,000 mm3 (x 92,713) for the North Fork population. Significant differences between the two populations were also noted for erythrocyte total width, erythrocyte nuclear length, monocyte total length, hemoglobin and pH values. Environmental, seasonal and sexual variation appeared to be insignificant. No basophils were observed for either population.