Table 6. Percent contribution and Biological Index Value (BIV) of the ten numerically most abundant 

 taxa at Millstone subtidal stations in each year, September 1979 - June 1985. 



Effluent 



Oligochaeta 

 Polycirrus eximius 

 Protodorvillea gaspeensis 

 Aricidea catherinae 

 Tharyx acutus 

 Tellina agilis 

 Rhynchocoela 

 Tharyx spp. 

 Exogone he be 3 

 Eumidia sanguinea 

 Capitella spp. 

 Mediomastus ambiseta 

 Polydora caulleryi 

 Lumbrineris tenuis 

 Caulleriella spp. 

 Pagurus acadianus 

 Leptocheirus pinusuis 

 Ampelisca verrilli 

 Microphthalmus aberrans 

 Prionospio steenstrupi 

 Gammarus laurencianus 



Giants Neck 



Oligochaeta 

 Aricidea catherinae 

 Tharyx spp. 

 Tharyx acutus 

 Protodorvillea gaspeensis 

 Lumbrineris tenuis 

 Mediomastus ambiseta 

 Polycirrus eximius 

 Phoxoxephalus holbolli 

 Exogone dispar 

 Polydora caulleryi 

 Prionospio steenstrupi 

 Capitella spp. 

 Gammarus lawerencianus 

 Lumbrineris impat lens 

 E umida sanguinea 

 Polydora quadrilobata 

 Leptochlerus pinguis 



37 



