"Male fitness, body size, and timing of reproduction in small mouth bass" by Wiegmannn et al.
In a 45-ha seepage lake the 1983 year class in 1986 had 1203 male smb. 3 years old was the youngest spawning observed and 7 years old was the oldest.From these 1203 males 329 spawned in their life time, 37 of those spawned twice. That means only 27.3% of males that make it to spawning age ever actualy spawn. If anyone want to read the paper I think I could e-mail it to you. Just post your request.
