oa African Zoology - Oxygen-binding characteristics of the haemolymph of the freshwater snail Bulinus (Physopsis) globosus

Volume 16, Issue 1
  • ISSN : 1562-7020
  • E-ISSN: 2224-073X



Oxygen dissociation curves were made and the Bohr-effect determined from micro-volume samples of the haemolymph of the freshwater snail Bulinus (Physopsis) globosus. Haemoglobin dissolved in the haemolymph is typically a high oxygen affinity respiratory pigment with a P50 value of 4,0 mm Hg measured at 26 C and a carbon dioxide tension of 3 mm Hg. The eco-physiological implications of the experimental findings are discussed

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