Fig. 7
Mytilus edulis. Dependence of subsequent life-time net cohort production of soft parts (P, g AFDM m−2) on initial recruit numbers (D, n m−2), as assessed either in August at an age of ∼3 mo or in March at an age of ∼10 mo. Data of 24 cohorts (born in 1979–2002, incl.). a August recruits. Linear fit: P = 1.84 + 0.03 D (n = 24, r = 0.50, P < 0.05) or P = 0.04 D if forced through the origin. b March recruits. Linear fit: P = 0.1 + 0.21 D (n = 24, r = 0.97, P < 0.0001) or P = 0.211 D if forced through the origin. c March recruits. Polynomal fit: P = −0.04 + 0.226 D − 0.00012 D2 (n = 24, r = 0.95, P < 0.0001)