Fig. 5
Limecola balthica. Relationships between water temperatures T in winter (means of January and February, in °C) and a recruitment R in the subsequent summer (nm−2 of 0.3-year-olds) and b survival S of adults in the subsequent year (in % of numbers in March). Means of data collected at 15 (b: 13) sampling sites. One point for each of 43 years; periods indicated: (solid squares) 1973–1994, (open circles) 1995–2003, and (crosses) 2004–2015. Lines show best fits for the points of the 21/22 years of the 1973–1994 or 31 years of the 1973–2003 period: a (solid line, closed squares) 10log R = 2.80 – 0.14 T, r2 = 0.42, n = 22, p < 0.01; (dashed line, closed squares + open circles) 10log R = 2.64–0.11 T, r2 = 0.32, n = 31, p < 0.001; b (closed squares) S = 71.4–2.35 T, r2 = 0.35, n = 21, p < 0.01