A. Nitrogen tissue content (% dry weight) of Gracilaria chilensis. Mean±SE, n=30.
White bar stands for initial N content (n=6). Grey bars are after 2 months (summer) in
culture at different distances fromthe salmon cages (L1=100 m, L2=800 m, L3=7000m
and L4=(bottom culture). B. Nitrogen removal potential (g/m/month) for each
cultivation site. Mean±SE, n=30. Letters indicate the groups differentiated by posthoc
tests, when these were significant at Pb0.05