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Age and Growth of an Endemic Cyprinid Fish, Spinibarbus yunnanensis, from Lake Fuxian, China

ABSTRACT Age and growth of Spinibarbus yunnanensis Tsu in Lake Fuxian were investigated by examination of annuli from scales, dorsal fin spines, and otoliths. Sectioned otoliths exhibited the clearest and the most regular annuli. The formation of false annuli, which regularly arose on scales and dorsal fin spines during the juvenile stage, may be caused by a change in diet during development. The parameters for the von Bertalanffy growth curve were: K = 0.105, L∞ = 950 mm, t0 = −0.22 year for both sexes. W∞, calculated from the relationship W∞ = aL∞ b, was 10,352 g.