FISHERY BULLETIN: VOL. 73, NO. 2 



Table 4.— Effects of hormones on Pseudopleuronectes americanus given five injections over a 10-day period. All fish experienced a 

 9L:15D photoperiod, water temperature range 3°-5°C (x 3.2°C). Symbols ( + = Did, = Did not hydrate or ovulate). 



'Gonadosomatic index. 



^Matured ova in ovaries. 



^Deoxycorticosterone, 



"Pregnant mare serum gonadotropin. 



spiug formed in oviduct, 

 'Eggs water hardened, 

 ^Human chorionic gonadotropin. 



436 



