The effects of three levels of environmental enrichment treatments( no environmental enrichment( group C);low-level environmental enrichment( group EL); and high-level environmental enrichment( group EH)) on the behavioral response and distribution of Sebastes schlegelii in early developmental stages were studied with an experimental ecology method. Additionally,the attractive effect of two kinds of artificial reef models( pyramid and cylinder reef models) on S.schlegelii was also studied. The results showe...