“…For example, in fish, water-born steroids, prostaglandins and their metabolites have been found to alter behavior in goldfish (Carassius auratus) (Dulka et al, 1987;Poling et al, 2001), African catfish (Clarias gariepinus) (Resink et al, 1989), and Atlantic salmon (Salmo salar) (Moore and Scott, 1991). However, few studies on the pheromonal effects of hormones have been done for invertebrates.…”