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Aquaculture in thermal effluents from power plants
Guerra, C.R.; Godfriaux, B.L.; Eble, A.F.; Stolpe, N.E. (1976). Aquaculture in thermal effluents from power plants, in: Persoone, G. et al. (Ed.) Proceedings of the 10th European Symposium on Marine Biology, Ostend, Belgium, Sept. 17-23, 1975: 1. Research in mariculture at laboratory- and pilot scale. pp. 189-205
In: Persoone, G.; Jaspers, E. (Ed.) (1976). Proceedings of the 10th European Symposium on Marine Biology, Ostend, Belgium, Sept. 17-23, 1975: 1. Research in mariculture at laboratory- and pilot scale. IZWO: Wetteren. ISBN 90-6281-001-2. 620 pp., more

Available in Authors 
    VLIZ: Proceedings [4803]
Document type: Conference paper

Keyword
    Fresh water

Authors  Top 
  • Guerra, C.R.
  • Godfriaux, B.L.
  • Eble, A.F.
  • Stolpe, N.E.

Abstract
    Research on the culture of the giant freshwater shrimp, Macrobrachium rosenbergii, and rainbow trout, Salmo gairdneri, is being conducted using the thermal effluents of a power station sited adjacent the Delaware River (New Jersey). The pilot scale experiments are being funded by a grant from the National Science Foundation, Research Applied to National Needs. The paper outlines fundamental factors which influence the potential and limitations of stimulating growth of aquatic organisms by the addition of low-grade thermal energy from power plants and other sources. Some of the significant experiments and results from the tests carried out at the Aquaculture Facility of the Public Service Electric and Gas Company (PSE and G) Mercer Generating Station are described. About 2,200 shrimp were stocked as the summer crop and successfully maintained at low density levels (10/m²) in an experimental pond using condenser cooling water effluent from the power station (28 °C average temperature). Various types of submerged substrates were tested for suitability in providing protection and habitat niches to the shrimp. In less than 4 months, the shrimp grew from an average of 22 to 70 mm with some animals reaching 108 mm. Mortalities were low (9.7 %). The winter trout culture was also successful. Five thousand 17.5 cm rainbow trout fingerlings (65 grams average) were stocked and grown in the power plant effluent (10 °C average temperature) for 3-5 months reaching an average length of 25 cm and weighing 190 g. Dual crop aquaculture operations appear viable in temperature zones. High intensity pond stocking of shrimp and trout are planned for 1975 and 1976. Future projections of thermal aquaculture and conceptual designs of aquaculture systems which could be adapted to open- or closed-loop cooling water systems of power stations sited on land or floating offshore in the ocean are presented.

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