Population Biology of Red Swamp Crayfish, Procambarus Clarkii (Girard, 1852) in the Guadalquivir River Marshes, Spain
作者： E. Cano , M.E. Ocete
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摘要: Observations on a Procambarus clarkii population were carried out in the rice fields of Guadalquivir river marshes. From April through October, 1993, crayfish samples collected traps ("nasa") for determination reproductive state and total length. Females outnumbered males throughout entire harvesting period with an average sex ratio 1.414 (females/males). Ripe eggs (peaking September May) mature June) observed during whole growing period.
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