Respiratory properties of the haemolymph of the intertidal prawnPalaemon elegans (Rathke)

✍ Scribed by Morris, S. ;Taylor, A. C. ;Bridges, C. R. ;Grieshaber, M. K.

• Book ID: 102892551
• Publisher: John Wiley and Sons
• Year: 1985
• Tongue: English
• Weight: 963 KB
• Volume: 233
• Category: Article
• ISSN: 0022-104X
• DOI: 10.1002/jez.1402330203

✦ Synopsis

The properties of the haemolymph of Palaemon elegans for oxygen and carbon dioxide transport were studied with respect to the considerable fluctuation in the environmental conditions normally experienced by this prawn in intertidal rock pools. The haemolymph was found to have a high oxygen affinity (P50 = 3.6 Torr, 15"C, pH 8.0) and a large oxygen carrying capacity (1.17 mmol.L-'), as well as a marked Bohr shift (4 = -1.7). Under some conditions, the affinity appeared to be independent of temperature as did the 1150 value (1-150 = 2.8). Experiments in which the pH of the haemolymph was varied using fixed acid together with two different CO2 tensions demonstrated a specific COa effect on 0 2 affinity, which did not affect the Bohr factor. S. Morris IS now a t Institut fur Zoologie IV, Universitat Dusseldorf, D-4000 Dusseldorf, F.R.G. Address reprint requests there.