Table 3 Δ δ 13C and Δ δ 15N values in per mil of isotope signatures calculated for parasites in relation to their host tissues and between both parasite species (ΔhE P. laevis - Eustrongylides sp.)
Parasite | Muscle | Intestine | Liver | P. laevis | ||||
|---|---|---|---|---|---|---|---|---|
|  | Δδ 15N | Δδ 13C | Δδ 15N | Δδ 13C | Δδ 15N | Δδ 13C | Δδ 15N | Δδ 13C |
P. laevis (summer) | 2.0 | -0.1 | 0.8 | -0.5 | 1.1 | -1.4 | – | – |
P. laevis (autumn) | 1.0 | 0.8 | 0.8 | 0.3 | 1.0 | -1.6 | 2.9 | 1.6 |
Eustrongylides sp. | -1.9 | -0.4 | -2.1 | -0.9 | -2.0 | -2.8 | -2.9 | -1.2 |