海量图书期刊资源，随时随地畅享阅读乐趣
Utilization of purple and red sea urchins (Strongylocentrotus purpuratus Stimpson and S. franciscanus Agassiz) as food by the white sea urchin (Lytechinus anamesus Clark) in the field and laboratoryJames A. Coyer; John M. Engle; Richard F. Ambrose; Bobette V. Nelson · 1987