FISHERY BULLETIN: VOL. 86, NO. 3 



Table 5.— Means and standard deviations for all biochemical components in mantle tissue. 

 FAA = total of the 9 free amino acids measured; FAA- = FAA less taurine and hypotaurine; FAA- 

 = FAA less taurine, hypotaurine, glycine, and alanine; amino acids in ^moles mL" \ other tissue 

 components in mg • g dry wt'\ 



Table 6.— Means and standard deviations for biochemical components of adductor muscle tissue. 



See Table 5 for additional information. 



duce host growth rate (Nishino et al. 1983). Oysters 

 parasitized by Boonea impressa gained significant- 

 ly less weight than nonparasitized oysters. Para- 

 sitized female oysters had significantly fewer eggs 

 than controls (the effect on males was not quan- 

 tified). 



Reduced growth and impaired reproduction in the 

 host are commonly associated with marine parasites 

 (e.g., Menzel and Hopkins 1955; Cheng et al. 1983; 



Hawkes et al. 1986). Starvation produces a similar 

 phenomenon (Fair and Sick 1982; Pipe 1985; Wright 

 and Hetzel 1985; Devi et al. 1985). Several lines of 

 evidence suggest that a reduction in net productiv- 

 ity, but not a negative energy balance, produced the 

 results observed here. White et al. (1988) developed 

 an energy flow model for oysters and snails. Using 

 that model, oysters of 4 to 7 cm long, the size we 

 used, would not incur a negative energy balance un- 



560 



