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Figure 5


Fig. 5. (A) Heart rate (beats min-1), (B) stroke volume (ml beat-1), (C) cardiac output (ml min-1) and haemolymph flow rates (ml min-1) through the (D) anterior aorta, (E) left anterolateral artery, (F) right hepatic artery, (G) posterior aorta and (H) sternal artery of 10 Cancer gracilis. Crabs were monitored during a 3 h control period in 100%SW, food was administered and cardiac parameters followed for a further 3 h in seawater, after which low salinity conditions (65%SW) were initiated for 6 h. Control conditions were then restored for an additional 6 h. Values are means ± s.e.m. The beginning of the feeding, low salinity and 100%SW periods are marked. In certain cases error bars are small and do not show clearly on figures.





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