Wild fish can recognize individual divers Publications of Gisela Helfer All genres Journal Article (1) Journal Article (1) 1. Journal Article Helfer, G.; Fidler, A.; Vallone, D.; Foulkes, N. S.; Brandstätter, R.: Molecular analysis of clock gene expression in the avian brain. Chronobiology International 23 (1-2), pp. 113 - 127 (2009) MPG.PuRe DOI