The mean numerical abundance of five wood-boring taxa on six-month exposure 

 panels collected in the vicinity of the Millstone Nuclear Power Station, from 

 1979 -1986. 



at ambient water sites and November at EF. Teredinid larvae settling at EF in November were most 

 likely T. harlschi, since the major increase in recruitment from November to February was for this species. 



Among sites, GN had the greatest recruitment of shipworms (210 shipworms/panel/year), and had 

 2-4 times as many shipworms per exposure period as any other site, while FI had the fewest 

 (15 shipworms/panel/year) among the ambient water sites. BP, established in 1985, has not been sampled 

 for a long enough period to determine temporal trends. EF was characterized by low abundances of all 

 wood-boring species throughout the study. However, this site supported the only population of T. bartschi, 

 which has been collected in the effluent since 1975. 



Depth preferences of foulers and woodborers at EF. Two rack and frame assemblies of exposure panels 

 were monitored at EF to determine if fouling species or woodborers had any depth preferences for panels 



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