Record Display for the EPA National Library Catalog


Main Title Ultrastructural Study of Lesions in Gills of a Marine Shrimp Exposed to Cadmium.
Author Couch., John A. ;
CORP Author Environmental Research Lab., Gulf Breeze, Fla.
Year Published 1976
Report Number EPA/600/J-77/028 ;Contrib-298;
Stock Number PB-269 931
Additional Subjects Shrimps ; Cadmium inorganic compounds ; Toxicity ; Pathology ; Morphology ; Electron microscopy ; Exposure ; Cells(Biology) ; Histology ; Penaeus duorarum ; Pink shrimp ; Gills(Fishes) ; Lesions ; Cadmium chlorides ; Water pollution effects(Animals)
Library Call Number Additional Info Location Last
NTIS  PB-269 931 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 23p
Pathologic black gills of pink shrimp, Penaeus duorarum, exposed to 763 micrograms/l of cadmium chloride for 15 days were studied with transmission electron microscopy and were compared with normal gills of control pink shrimp. Local as well as extensive areas of cell death and necrosis were found in the distal gill filaments of black gills from cadmium-exposed shrimp. It is proposed that necrosis of specialized epithelial cells and septum cells in black gill filaments and contiguous nonblack gill tissue could cause osmoregulatory, detoxifying, and respiratory dysfunction in crustacea, particularly in individuals undergoing environmental stress such as salinity fluctuation.