Fig. 4
From: Some recommendations for an accurate estimation of Lanice conchilega density based on tube counts
a Scatter plot of sample volume against the percentage differences between tube and specimen counts (N (tube) − N (specimen)/N (max) × 100). Black rhombus indicates samples lacking tubes with well developed fringes. b Scatter plot of the season against the percentage differences between tube and specimen counts. Black rhombus indicates samples lacking tubes with well developed fringes