A comparison of the annual changes in testicular activity and serum androgen levels between the early and delayed maturing groups of male Cottus hangiongensis - Quinitio, Gerard F.
Research Articles (Environmental Biology of Fisheries, Vol. 34, 1992, pp 119-126)
Keywords: Male river-sculpin.; Life-history variation; Testiular development; Histological difference; Testosterone; 11-Ketotestosterone.