Fig 3 in In situ fast marking study of manila clams (Ruditapes philippinarum)

Fig 3: Magnification of a ventral margin in Manila clam: green fluorescent mark produced following 30 minutes calcein solution exposure (100 mg L−1) and observed growth increments before and after marking. Along a growth axis, grey levels have been measured (AU: arbitrary unit) and each grey peak is identified (blue circle) as the limit between each opaque band and each hyaline band, reflecting each one growth increment.