Age structure and density of kelp species
Age structure and density of the kelp community was investigated along
the Hansneset depth gradient (2.5 – 10m) in summer 2013 and 2021 as a
proxy for the stability of the environment. The observed pattern of
relative age class distribution of all kelps, A.esculenta , ‘Digitate Kelps’ and S. latissima changed
considerably between the two time periods. Data from 2021 are
illustrated in Figure 6 and detailed age and density information is
given in Appendix 6. As the investigation of other parameters already
revealed changes across depth levels, the statistical analysis of mean
age (years m-2) and density (ind.
m-2) focused on adult (≥ 1 year) kelps and differences
between species and time points (Table 3, Figure 7). Detailed data from
2013 were published as Supplement Table S3 in Bartsch et al. (2016).