Emys orbicularis

Turtles also use chemical cues for food, as shown for the marine loggerhead turtle, Caretta caretta (Grassman etal., 1984). Among freshwater turtles, the European pond turtle, Emys orbicularis, locates food hy chemoreception. This species moves chemical stimuli from the pond water to the chemoreceptors of the nasal and oral cavities by slow jaw testing movements . The frequency of these movements increases in response to the amino acids alanine, arginine. 

Manteifel, Y. B. and Goncharova, N. V. (1992). Sensitivity and specificity of some L-amino acids perception in a European water turtle Emys orbicularis chemotesting movements and avoidance reaction. ComparativeBiochemistry andPhysiology 102,527-531. 

Manteifel, Y., Goncharova, N., and Boyo, V. (1992). Chemotesting movements and chemosensoty sensitivity to amino acids in the European pond turtle, Emys orbicularis L. In ChemicalSignab in Vertebrates, vol. 6, ed. R. L. Doty and D. Miiller-Schwarze, pp. 397-401. New York Plenum. 

Emys orbicularis Linne Artser subanser Janossy... 

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