An Investigation into Tetrodotoxin (TTX) Levels Associated with the Red Dorsal Spots in Eastern Newt (<i>Notophthalmus viridescens</i>) Efts and Adults

<div>Concentration of tetrodotoxin (TTX) per plug (ng) in brightly spotted and unspotted dorsal epidermis samples from Eastern newt (<i>Notophthalmus viridescens</i>) efts (circles) and adults (triangles). A paired t-test found no significant difference between the mean concentrations of TTX in pigmented samples (<i>t</i> = 0.014; df = 14;<i> P</i> = 0.989) from efts or adults (<i>t</i> = -0.453; df = 6;<i> P</i> = 0.667). Means are represented by dashed lines. Adult newts have significantly lower concentrations of TTX in their skin than efts (<i>t</i> = 4.6, df = 20,<i> P</i> &lt; 0.001).</div>

Journal of Toxicology

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Figure 1

Figure 1: An Investigation into Tetrodotoxin (TTX) Levels Associated with the Red Dorsal Spots in Eastern Newt (<i>Notophthalmus viridescens</i>) Efts and Adults 

Figure 1 | An Investigation into Tetrodotoxin (TTX) Levels Associated with the Red Dorsal Spots in Eastern Newt (Notophthalmus viridescens) Efts and Adults 