Effect of Short—Term Exposure to Mercuric Chloride on the Air—Breathing Catfish,Hetero

Effect of Short—Term Exposure to Mercuric

Chloride on the Air—Breathing Catfish,Heteropneusted fossilis

MAYAS．PRASAD

【期刊名称】《生物医学与环境科学：英文版》 【年(卷),期】1994(007)004

【摘要】Histopathological effects of sublethal(0.1,0.2,0.3ppm)and lethal (0.5,1.0ppm)solutions of mercuric chloride(HgCl2)have been studied on the gills of the air breathing catfish,Heteropneustes fossilis at the intervals

ranging

from

6h

to

15

days.Thickening

of

the

epithelium,swelling and hyperplasia of the mucous cells,fusion of secondary lamellae,formation of interlamellar bridge and eposition of mucous over the entire surface are some noteworthy features of mercury poisoning in sublethal concentrations.Acute pathological manifestations

are

formation

of

formation

of

subepithelial

space,sloughing of the epithelial layer,hemorrhage and hypertrophy of the mucous cells.Causes and impact of these cellular alterations affecting survival of the fish have been discussed. 【总页数】10页(P.327-336)

【关键词】氯化汞;短期接触;空气呼吸鲇鱼;鱼鳃;光学显微镜;细胞学变化 【作者】MAYAS．PRASAD 【

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位

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