Fig. 2. CL images of polished sea urchin spines labeled during trial marking experiments. a lateral view with enlarged microregion of a spine showing regenerated tip of Paracentrotus lividus labeled with Mn2+ at 1Â mg/L, b lateral view with enlarged microregion of a spine showing regenerated tip of Paracentrotus lividus labeled with Mn2+ at 3Â mg/L, c lateral view of spine showing a regenerated tip of Echinometra sp. labeled with Mn2+ at 3Â mg/L, d cross-section of a regenerated tip of spine of Echinometra sp. labeled with Mn2+ at 3Â mg/L. Abbreviations: Th - thickening increments, Pi - pore infilling deposit Fr - cutting fracture (delineated with dotted line). Orange-red skeletal regions indicate enhanced Mn2+ concentrations due to twice Mn2+ labeling; dark regions indicate growth in normal (without Mn2+) seawater
Image published in: Gorzelak P et al. (2017)
Image downloaded from an Open Access article in PubMed Central. © The Author(s)
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