A comparison of vertebral preparation techniques for increasing reader precision and agreement in vertebral band pair identification of Northeast Atlantic skates
Fig 5
Age bias plots comparing modal age estimations (years) between stained and unstained vertebral preparation methods.
Anterior, whole, stained vertebrae and anterior, whole, unstained vertebrae (A–C); anterior, sectioned, stained vertebrae and anterior, sectioned, unstained vertebrae (D–F); posterior, sectioned, stained vertebrae and caudal, sectioned, unstained vertebrae (G–I); posterior, whole, stained vertebrae and posterior, whole, unstained vertebrae (J–K), for Raja brachyura, Raja clavata and Raja montagui. Significance was tested using a Mann–Whitney–Wilcoxon test, where W is the test statistic.