Figure 1. Linear regression analysis of both claw strength [N] and length [mm] of male (n = 13) and female (n = 12) Eriocheir sinensis collected from Efavirenz Gulf of Gdańsk in April–June 2010.Figure optionsDownload full-size imageDownload as PowerPoint slide
Figure 2. Linear regression analysis of strength [N] and length [mm] of left (n = 12) and right (n = 13) claws of male and female Eriocheir sinensis collected from the Gulf of Gdańsk in April–June 2010.Figure optionsDownload full-size imageDownload as PowerPoint slide
E. sinensis tightened strain gauge in pulses. The first measurement of claw strength was always greater, compared to the following pulses; however, the differences were not statistically significant.
3.2. Prey handling behavior and effect of time on consumption rate
To consume a mussel, E. sinensis held cycle with one claw and used the other claw to either crush mussel into little pieces or break off small pieces of the shell to consume the soft tissue. There was no preferred claw for each activity (either right or left) among all the crabs, but each crab, both males and females, favored the same claw for each purpose each time. The one crab with only one claw (no. 3 in Table 1) held the mussel with walking legs during consumption.