2000年冬天,石壁坑村农户刘时华,把约有30kg将变质的南瓜打浆后喂鱼种,第2天观察发现,大部分草鱼种和一些草食鱼类先是呼吸急促,随处乱游,然后有部分鱼浮上水面并拥挤成团,且身体保持与水面平行,重者显得急躁不安,时而上跳下窜,时而急剧狂游,最后呼吸减慢,鱼体仰浮,不久就出现死鱼现象,但死鱼数量不多。 In the winter of 2000, Liu Shihua, a farmer in Shibikeng Village, fed about 30kg of beaten pumpkin to feed the fish. On the second day of observation, most of the grass carp species and some herbivorous fish first had shortness of breath and traveled everywhere and then some The fish float to the surface and crowded into groups, and the body remains parallel to the water surface. The heavier people appear to be impatient and anxious. Sometimes they jump on and down, sometimes go on a drastic excursion, and finally they breathe more slowly. A small number of dead fish.