Fig. 6. Modified Ricker Stock-Recruitment model for Chesapeake Bay striped bass, 1985–2002. Observed and modeled young-of-the-year recruitment. R: Recruitment indices from Maryland Department of Natural Resources (MD DNR) juvenile seine index data; P: spawning stock biomass, from spring gillnet surveys by MD DNR; H': age diversity of female spawners ≥ age-5 based on Shannon-Wiener diversity index; Sal: mean surface salinity in mid-Chesapeake Bay for April-October. P, H' and Sal all contributed significantly to the modeled recruitment. Recruitment success depends on a substantial contribution to spawning by age-8 – age-12 females (Modeled by Houde and Jung; presentation, American Association for Advancement of Science Meeting, Washington, D.C., February 2005).