JOOO- 



B E F G W 

 P F I N P 



I — Aug-Feb — I 



E F G W 

 F I N P 



-Nov-Moy — I 



-Fob-Aug- 



-May-Nov- 



LIMNORIASPP. 



CHELURA TEREBRANS 



Figure 8. Mean numercial abundance of wood-boring Crustacea, Limnoria spp. and Chelura terebrans in six-month 

 exposure panels collected from 1979-1986 in the vicinity of the Millstone Nuclear Power Station. 



placed 1 m below the surface or those placed 1 m above the bottom. Nine taxa were selected for 

 comparison based on their peak occurrences during the four exposure periods sampled from 1985-1986 

 (Table 5). Of these, four foulers and two woodborers had significantly larger abundances on one set of 

 panels as compared to the other in at least one exposure period. Alcyonidium spp., Balanus eburneus, 

 Tubularia crocea and Teredo navalis had their largest abundances on the panels close to the bottom, while 

 n. improvisus and Limnoria spp. were most abundant near the surface. Even though limnorids were most 



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