Friedlander and Zlemann: Impact of hatchery releases on recruitment of Polydactylus sexfilis 



39 



A 1998 



B 1999 



N 



^\ Kallua Bay release site 



r^ Lanikai 



Waimanalo 



Sandy Beach 



Maleakahana 



Kailua Bay release site 



Figure 4 



Movement patterns of hatchery-reared Pacific threadfin released in Kailua Bay from the reward fishery program 

 during the (A) 1998, n = 43 and (B) 1999, n = 57 fishing seasons. 



Information on sex of Pacific threadfin obtained in the 

 reward program was available only during 1999 because 

 whole fish were not acquired in 1998. The ratio of male 



to hermaphrodite to female was 56:17:27 for wild Pacific 

 threadfin and 81:15:4 for hatchery-reared fish (Fig. 5). 

 Three hatchery-reared fish that had changed from males 



