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Table 2 Hardness and water content of Pegea confoederata tunic

From: Physical properties of the tunic in the pinkish-brown salp Pegea confoederata (Tunicata: Thaliacea)

Sample Hardness (N)* Water content (%)
I 0.447 96.1
II 0.504 98.3
III 0.388 97.5
  1. *Median of the five measurements of the maximum force to pierce the tunic with a stainless rod (1 mm diameter)