staff and members of the Environmental Advisory Committee, the phytoplank- 

 ton program was terminated in June 1982. 



Recommendat ions 



We recommend that no further phytoplankton studies be conducted at 

 Millstone, as part of preoperational studies for Unit 3. The data base 

 will be maintained for future reference. 



ZOOPLANKTON 

 The zooplankton community is an important component of the marine 

 ecosystem and consists of holoplankton, meroplankton and tychoplankton. 

 Holoplankton are primarily copepods which spend their entire life cycle 

 in the water column. Meroplankton are developmental stages of benthic 

 invertebrates which are planktonic only in their early life stages. 

 Tychoplankton are benthic organisms which become planktonic by active 

 migration into the water column or incidental uplifting by water currents. 

 Zooplankton are an important food source for young and adult fish. 

 Entrainment loss of zooplankton could potentially affect the stability 

 of the benthic community and the food web. Zooplankton studies have 

 been conducted at Millstone since 1970 and include entrainment and 

 offshore studies. 



Entrainment Zooplankton 



Woods Hole Oceanographic Institution (WHOI) conducted zooplankton 

 entrainment studies at Millstone Unit 1 from November 1970 through June 

 1975. These studies were conducted to determine the entrained zooplankton 

 species composition, abundance and survival; and the entrainment effects 

 on adjacent waters. 



