Document Type



Virginia Institute of Marine Science

Publication Date



Special Scientific Report No. 84


  • Section I: : Contents River Biota Studies at the VEPCO Surry Nuclear Power Station by R. A. Jordan, P. A. Goodwin, and R. K. Carpenter
  • Section II a: Plant Entrainment of Ichthyoplankton at the VEPCO Nuclear Power Plant by J. V. Merriner, A. D. Estes, and R. K. Dias
  • Section II b: Thermal Plume Entrainment of Ichthyoplankton at VEPCO Nuclear Power Station by J. V. Merriner, A. D. Estes, and R. K. Dias


The Surry Power Station, operated by the Virginia Electric and Power Company, is located on a peninsula that extends into the James River on its south shore. The tip of the peninsula is known as Hog Point, and it is approxtm.ately 30 miles (48 km) upstream from Chesapeake Bay and 50 miles (80 km) downstream from Richmond (Fig. 1). The sectlon of the river bordering this peninsula is the transition zone between fresh water and saline water, where the salinities encountered are near the tolerance minima for most estuarine and marine species and near the tolerance maxima for freshwater species. Therefore, the biological cowm1nity consists of a few resident species that can tolerate the entire range of conditions, and of visitors from upstream and downstream that can survive until their tolerance limits are exceeded. The region is biologically significant mainly as a nursery ground and migration corridor for fish species that are harvested elsewhere. The fish populations in the vicinity of the power station have been monitored by VEPCO personnel. VIMS was engaged by VEPCO to monitor the lower trophic levels, including the phytoplankton, zooplankton, benthic macroinvertebrates and fouling organisms. The monitoring study has been in progress since May, 1969, and intensified sampling programs for phytoplankton and zooplankton were followed in 1975 and 1976. The present report covers the study period January through December 1976.



Estuarine animals -- Effect of temperature on -- Virginia -- James River; Nuclear power plants -- Environmental aspects -- Virginia -- James River; Brackish water animals; Estuarine biology