Method for manufacturing primary embedding block for otolith observation, specimen block for otolith observation, and otolith sample piece

摘要

To provide a primary embedding block for observing an otolith, which allows for easily and accurately producing an observation cross-section that includes a core of a fish otolith, a sample block for observing an otolith, and a method of preparing an otolith sample piece.SOLUTION: An embedding block comprises a substrate 11 having a flat sample fixing surface 11a for a fish otolith sample S to be fixed thereon, the sample fixing surface 11a having a cross-line (virtual cross-line) 13 consisting of two straight lines 13a, 13b formed thereon, which shows a center point that acts as an indicator for positioning a core SC of the otolith sample S.SELECTED DRAWING: Figure 1