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Figure 5


Fig. 5. Percentage of larvae swimming in response to 10–7 mol l–1 tetrodotoxin (TTX; alone), or binary mixtures of 10–7 mol l–1 TTX + 10–7 mol l–1 arginine (or an arginine analog) and tapwater (control). Asterisks denote a significant difference between larval responses to test and tapwater (control) solutions, using a Fisher exact test (P<0.01). Lys, lysine; GA, guanidinacetate; AS, agmatine; HA, homoarginine; Guan, guanidine; GB, guanidinobutyrate; Arg, arginine.