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Blood oxygen and ecology of porpoises of three genera.

Authors
  • Ridgway, S H
  • Johnston, D G
Type
Published Article
Journal
Science (New York, N.Y.)
Publication Date
Jan 28, 1966
Volume
151
Issue
3709
Pages
456–458
Identifiers
PMID: 5902388
Source
Medline
License
Unknown

Abstract

Blood volumes, hemoglobin concentrations, packed-cell volumes, and heart weights were determined in three genera of propoises which differ from one another in behavior and ecology. The estimate for the total blood-oxygen content of the highly active, deep-diving, pelagic species Phocoenoides dalli was almost three times greater than that for the coastaldwelling species Tursiops truncatus, and about 70 percent greater than for the less active pelagic species, Lagenorhynchus obliquidens. Heart weights of Phocoenoides dalli were about 140 percent greater than in Tursiops truncatus and 55 percent greater than in Logenorhynchus obliquidens.

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