Secondary Production of Leptophlebia sp and Ephemera sp in Heizhuchong Stream Secondary production and its trophic basis of Simulium Spin Heizhuchong Stream Production dynamics and trophic basis of two chironomids in Heizhuchong Stream,Hubei,China Production dynamics and trophic basis of three dominant mayflies in the continuum of Shenglihe Stream in the Bahe River Basin