Variations, against fishing mortality (F), of mean (black solid line), median (blue dash-dotted line), and the 95% uncertainty envelops (gray area) of (a) and (b) the composite yield per recruit (CYPR) and (c) and (d) the composite spawning potential ratio (CSPR) based on baseline CYPR14 analyses (age of knife-edge recruitment = 1 year) for L. stappersii in Lake Tanganyika (left panels) and L. niloticus in Lake Victoria (right panels). The vertical, black dashed line, solid line, and dashed line represent, from left to right, the 25% percentile, mean, and 75% percentile of F_CYPR and F_35%CSPR (L. stappersii) or F_40%CSPR (L. niloticus); the vertical, green dashed line, solid line, and dashed line represent, from left to right, the 25% percentile, mean, and 75% percentile of F_0.1; the horizontal red dashed line, solid line, and dashed line on the CYPR plots represent, from bottom to top, the 25% percentile, mean, and 75% percentile of MSY per recruit; the horizontal red and solid line on the CSPR plots locate the levels of 35%CSPR and 40%CSPR.