一是气候不适宜。气候是影响钓获量的主要因素。早春季节,坑塘鱼已开始进食或进入旺食期,由于水库水位深,水温上升慢,鱼儿活动量小,未游出深水区觅食,因此无鱼可钓;鱼开始活动觅食后(华东地区谷雨之后一个半月内),天气突然变化(主要是刮北风、降温和阴雨),则获鱼少或无鱼上钩。夏季 First, the climate is not suitable. Climate is the main factor affecting catch. In early spring, the pit ponds have begun to eat or enter the wonton period. Due to the deep water level of the reservoir and the slow rise of the water temperature, the activity of the fish is small and there is no foraging in the deep water zone. Therefore, no fish can be caught; (Within a month and a half after the valley rain in East China), sudden changes in weather (mainly north wind, cool and rainy days) resulted in fewer or no fish. summer