Three stations (Jordan Cove, Intake, and Two Tree) have each been 

 sampled by 10 wood and 10 wire pots since 1978. Samples were taken 

 three times a week from May through November. In 1981, a comparison of the 

 CPUE between wood and wire pots concluded that wire pots are a more 

 efficient method of collecting smaller lobsters for the study. Based on 

 the results of this comparison, the sampling scheme changed from 30 wood 

 and 30 wire pots to 60 wire pots in 1982. 



HEAVY METALS 1971 - 1982 



Since 1971, Northeast Utilities Service Company (NUSCo) has supported 

 a metals monitoring program designed to determine the contribution of 

 Millstone Nuclear Power Station (MNPS) to heavy metal concentrations in 

 Long Island Sound, and any subsequent bioaccumulation of metals by 

 suspension-feeding bivalves. The overall objective of this study was to 

 monitor levels of copper, zinc, iron, chromium, and lead present in 

 Niantic Bay and to detect possible increases in these metal levels 

 resulting from cooling water discharges of MNPS. Seawater samples have 

 historically been taken five times a year (Feb., May, July, Sept., and 

 Dec). From 1971 to 1973, tissue samples were taken in May and December 

 only. Starting in May of 1973, tissue samples were taken on the same 

 schedule as seawater. 



Results of this study show that oysters exposed to discharge waters 

 indeed sequester copper to a greater extent than oysters kept in control 

 water sites. No increased levels were observed in any of the other 

 metals studied. Bivalves collected from study sites adjacent to the 

 power plant's discharge outfall did not show a significant increase in 

 the levels of any of the metals under investigation. Analysis of seawater 



