Species n %carbon %nitrogen C:N ratio
Alaria esculenta
2.5 m 11 34 ± 5 2.2 ± 1.1 18 ± 7
5 m 15 35 ± 6 1.9 ± 0.6 20 ± 5
10 m 7 37 ± 1 2.7 ± 0.6
Digitate kelps
2.5 m 15 27 ± 5 2 ± 0.5 15 ± 6
5 m 10 29 ± 3 1.4 ± 0.2 21 ± 4
Saccharina latissima
2.5 m 15 32 ± 6 1.3 ± 0.8 29 ± 9
5 m 7 32 ± 3 1.7 ± 0.6 22 ± 11