1. Effect of extracellular calcium on the contractility of warm-and cold-acclimated crucian carp heart

   • M. Vornanen

   Original Paper Pages: 507 - 517

2. Blood vessel adaptation to gravity in a semi-arboreal snake

   • D. J. Conklin
   • H. B. Lillywhite
   • A. R. Hargens

   Original Paper Pages: 518 - 526

3. Changes in sodium, calcium and magnesium ion concentrations in sturgeon (Huso huso) urine and in kidney morphology

   • L. S. Krayushkina
   • A. A. Panov
   • W. T. W. Potts

   Original Paper Pages: 527 - 533

4. Plasma glucose kinetics and tissue uptake in brown trout in vivo: effect of an intravascular glucose load

   • J. Blasco
   • J. Fernàndez-Borràs
   • A. Requena

   Original Paper Pages: 534 - 541

5. Respiratory gas exchange, nitrogenous waste excretion, and fuel usage during starvation in juvenile rainbow trout, Oncorhynchus mykiss

   • R. F. Lauff
   • C. M. Wood

   Original Paper Pages: 542 - 551

6. Effect of T₃ administration on electrophysiological properties of lizard ventricular muscle fibres

   • P. Venditti
   • S. Di Meo
   • T. De Leo

   Original Paper Pages: 552 - 557

7. Different physiological functions of free D- and L-alanine in three body parts of the intertidal sipunculid Phascolosoma arcuatum

   • W. P. Low
   • W. T. Ong
   • Y. K. Ip

   Original Paper Pages: 558 - 564

8. Effects of angiotensin II antagonists on the contractile and hydrosmotic effect of AT II and AT III in the toad (Bufo arenarum)

   • M. Peral de Bruno
   • A. Coviello

   Original Paper Pages: 565 - 570

9. Carbohydrate utilisation by microbial symbionts in the marine herbivorous fishes Odax cyanomelas and Crinodus lophodon

   • G. S. Seeto
   • P. C. Veivers
   • M. Slaytor

   Original Paper Pages: 571 - 579

10. Evolution of digestion of carbohydrates in the separate parts of the digestive tract of the edible snail Helix lucorum (Gastropoda: Pulmonata: Stylommatophora) during a complete 24-hour cycle and the first days of starvation

    • V. Flari
    • M. Lazaridou-Dimitriadou

    Original Paper Pages: 580 - 591

11. Seasonal variations in the immune system of the tench, Tinca tinca (Cyprinidae): proliferative response of lymphocytes induced by mitogens

    • M. E. Collazos
    • C. Barriga
    • E. Ortega Rincón

    Original Paper Pages: 592 - 595