汕头港区有瓣蝇类密度季节消长监测报告

A SURVEY CONDITION OF FLIES VARIETY DENSITY AND THEIR SEASON GROWTH-DECLINE IN THE DISTRICT OF SHANTOU PORT

本文报告了汕头港区1988年10月～1989年9月蝇类密度及季节消长监测结果。汕头港区全年均有蝇类活动,共获苍蝇15653只,计4科19属,33种,未定种的93只,月平均密度43.8只/笼。3月份蝇类密度明显上升,5月出现高峰,后逐渐下降,但1988年10月为最高峰(156.7只/笼),1989年9月最低(4.76只/笼)。主要蝇属为金蝇属占48％,为优势种;次为阿丽蝇属(?)家蝇属等8种。

The survey condition of flies variety density and their season growth-decline in the district of Shantou port from October 1988 to September 1989 was reported. The activities of flies in all year in Shantou district. And capture flies 15653 pcs. They were identified to be 4 families, 19 genuses , 33 species. Undefined species have 93 pcs. The fly average density per month was 43. 8 flies per box. Flies density is quite clear rise in March. The high peak period was appear in May. Then it was getting drop, but the highest peak period was in October 1988 (156. 7 flies per box). The lowest peak period was in September 1989 (4. 76 flies per box). The chrysomyia of the first flies was 48% and it was the preponderance. The second, there were eight species, Aldrichina, Musca and so on. The above flies are closely related with the mankind. And it is prevention and cure main object. It advance the climate, environmental sanitation is good or bad. The flies density will influence directly.