Research Library | Digital Repository

Observations on the fish population of a lake contaminated by radioactive wastes. Bulletin of the AMNH ; v. 110, article 4

Show simple item record Krumholz, Louis A. (Louis Augustus), 1909- en_US Tennessee Valley Authority. en_US U.S. Atomic Energy Commission. en_US 2005-10-05T21:37:09Z 2005-10-05T21:37:09Z 1956 en_US
dc.description p. 281-367, [1] folded leaf of plates : ill., map ; 28 cm. en_US
dc.description Includes bibliographical references (p. 365-367). en_US
dc.description.abstract "A three-year study of the fish population of White Oak Lake, Roane County, Tennessee, was made in 1950-1953. That lake received the radioactive waste effluent, the chemical waste effluent, and the primary-treated sewage effluent from the Oak Ridge National Laboratory. Six semi-annual estimates of the size and composition of the fish population were made by the mark-and-recapture method. Immediately following the last semiannual netting study, the lake was partially drained and treated with emulsifiable rotenone. Approximately 60 percent of the fish that had been marked during the last semi-annual netting study were recovered following the treatment with rotenone. The estimated total weight of the fish population was approximately 985 pounds per acre. The data from the mark-and-recapture studies were not quantitatively sound but did provide good qualitative information on the composition of the fish population. They indicated that white crappies and redhorse were gradually disappearing from the population; these findings were corroborated by the data from the rotenone study. Age and growth data, supplemented by data on length frequencies, indicated that the fish of White Oak Lake grew more slowly and did not live so long as fish of the same species in near-by reservoirs of the Tennessee Valley Authority. Dissection of fishes provided data on the percentage composition, by weight, of the various tissues in the body. A year-round study of the food habits of the black crappie revealed that it fed primarily on larval Chaoborus and other midges and to a certain extent on copepods and cladocerans. The bluegill, on the other hand, was very omniverous and showed no such preference for certain food items. Radioassay of samples of the various tissues of the black crappie and the bluegill indicated that radiomaterials were selectively concentrated in all tissues of the body. The hard tissues selectively concentrated radiostrontium in amounts 20,000 to 30,000 times that of the water in which they lived. Some radiophosphorus was also concentrated in the hard tissues. The soft tissues selectively concentrated cesium and the rare earths. The total body burden carried by a 7-inch black crappie during the summer of 1952 was more than a microcurie, whereas that for a 6-inch bluegill was only slightly less. There were definite seasonal changes in the accumulation of radiomaterials which corresponded, to some extent, with the seasonal changes in water temperature. However, the accumulation of radiomaterials stopped when the temperature of the water reached its maximum about August 1. The rapid loss of radiomaterials during August and September indicated that both species of fish probably entered a period of summer dormancy during that time. The total radiation dose received by the fish in White Oak Lake was estimated to be at least 57 rep per year from external irradiation and was probably several times that amount from internal irradiation. As a result of this irradiation, it is believed that the fish population of White Oak Lake may have suffered deleterious effects, as manifested by the shortened life span, the slowed growth rate, and possibly the decreased fertility of the breeding stock of the redhorse"--P. 365. en_US
dc.format.extent 12617381 bytes
dc.format.mimetype application/pdf
dc.language eng en_US
dc.language.iso en_US
dc.publisher New York : [American Museum of Natural History] en_US
dc.relation.ispartofseries Bulletin of the American Museum of Natural History ; v. 110, article 4 en_US
dc.subject.lcc QH1 .A4 vol.110, art.4, 1956 en_US
dc.subject.lcsh Freshwater fishes -- Effect of water pollution on -- Tennessee -- Roane County. en_US
dc.subject.lcsh Radioactive pollution of water -- Tennessee -- Roane County. en_US
dc.subject.lcsh Fishes -- Effect of water pollution on -- Tennessee -- Roane County. en_US
dc.subject.lcsh Oak Ridge National Laboratory. en_US
dc.subject.lcsh Stream ecology -- Tennessee -- Roane County. en_US
dc.subject.lcsh Fish communities -- Tennessee -- Roane County. en_US
dc.subject.lcsh Freshwater fishes -- Tennessee -- Roane County. en_US
dc.title Observations on the fish population of a lake contaminated by radioactive wastes. Bulletin of the AMNH ; v. 110, article 4 en_US
dc.title.alternative Observations on fish en_US
dc.type text en_US

Files in this item

This item appears in the following Collection(s)

  • Bulletin of the American Museum of Natural History
    The Bulletin, published continuously since 1881, consists of longer monographic volumes in the field of natural sciences relating to zoology, paleontology, and geology. Current numbers are published at irregular intervals. The Bulletin was originally a place to publish short papers, while longer works appeared in the Memoirs. However, in the 1920s, the Memoirs ceased and the Bulletin series began publishing longer papers. A new series, the Novitates , published short papers describing new forms.

Show simple item record

Search Entire Repository

Advanced Search


My Account