Figure 3

Relationship between independent contrasts of parasite abundance and female body weight (independent contrasts calculated on log-transformed values) (a). Relationship between independent contrast of parasite abundance and spleen weight in females (both variables were controlled for fish weight using residuals from linear regression) (b). Relationship between parasite abundance and gonad weight for females (both variables were controlled for fish weight using residuals from linear regression) (c). All relationships are based on data obtained from the field study on females of 17 fish species (see Methods).