摘要：A microscopic, ultrastructural, and morphometric study was made of the gills of tench (Tinca tinca, L.) subjected to acute experimental lead nitrate poisoning. Twenty-one adult tench were subjected to poisoning and a further 22 were used as controls. Lesions were characterized by the appearance of edema and epithelial hyperplasia and necrosis, both in cells forming part of the filtration barrier and in those in the interlamellar space. These processes developed in the course of the experiment, leading to the death of tench after 12 to 15 days of exposure to 75 ppm lead nitrate, at which point the concentrations of lead in the gills had reached their maximum. Full text Full text is available as a scanned copy of the original print version. Get a printable copy (PDF file) of the complete article (4.4M), or click on a page image below to browse page by page. Links to PubMed are also available for Selected References . 137 138 139 140 141 142 143 144
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