马鞍山市储藏食品孳生粉螨的群落组成及多样性

Acaroid Mites Community in Stored Food in Maanshan Area

目的调查储藏食品中粉螨群落的物种组成和多样性。方法2006年7月从马鞍山市的超市仓库、家居储藏室中随机选取30种储藏食品,采用水膜镜检法和电热集螨法进行粉螨的分离,并进行螨种的鉴定和群落多样性分析。结果共检获粉螨15种,隶属于7科12属。粉螨平均孳生密度为3.56只/g,物种丰富度指数为1.63,物种多样性指数为2.28,物种均匀度指数为0.84。结论粉螨污染储藏食品的情况较为严重,其群落组成较为多样化,采用密封包装可减少食品螨类孳生。

Objective To investigate the composition and diversity of acaroid mites community in stored food in Maanshan area. Methods The samples of 30 kinds of stored food were collected from the supermarket warehouse and storehouse in July, 2006. The acaroid mites were isolated by Waterflotation and Tullgren, identified and counted under the microscope, the composition and diversity of acaroid mites community were analyzed. Results 15 species of acaroid mites which belong to 7 families and 12 genera were found. The average breeding density of acaroid mites was 3.56/g and the species richness index was 1.63, the diversity index was 2.28, the evenness index was 0.84. Conclusion The composition of acaroid mites community in stored food takes on diversification and the polluted situation is serious, vacuum packaging is an effective methods to decrease mites breeding.