Long Island Sound 



Figure 1. F^ocation of the Millstone Nuclear Power Station in eastern Long Island Sound. 



To meet these objectives the available life history stages of local finfish species are studied by various 

 programs at Northeast Utilities Environmental Laboratory (NUEL). The sampling programs established 

 over the years to monitor planktonic, demersal, pelagic and shore-zone fish abundances, were complemented 

 by entrainment and impingement monitoring programs. Studies of planktonic fish eggs and larvae (i.e., 

 ichthyoplankton) have been conducted at Millstone since 1973. TTiese studies have included entrainment 

 and offshore collections at various stations, and entrainment mortality and thermal tolerance studies on 

 selected larval fish species. A trawl sampling program was established in April 1973 to monitor demersal 

 fish. Since then, up to 11 stations have been sampled biweekly. Although the program has been reduced 

 to six representative sites, the methodology continues today relatively unchanged. The seine program, 

 established in 1969 to monitor shore-zone fish, involved sampling at up to 7 stations at various frequencies. 

 This program has been reduced to three representative sites, but the methodology remains unchanged. 

 Routine impingement sampling began at MNPS Unit 1 in 1972, and at Unit 2 in September 1975. 



