Figures & data
Figure 1. Location of experimental seaweed farm at Strangford Lough, Northern Ireland.
Figure 2. Mean biomass accrual (±S.E.) (n = 5–15) of individual sporophytes of Saccharina latissima (g wet biomass day−1). Cultivation period 1, January 2016–June 2016: ●. Cultivation period 2, October 2016–September 2017: ▲, Locally weighted smoothing line applied shows the local mean.
Figure 3. Relationship between the wet biomass and maximum length of sporophytes of Saccharina latissima (n = 231) from all individuals sampled across both cultivation periods.
Figure 4. Mean (± S.E.) number of individuals of Saccharina latissima per 30 cm of mariculture rope (n = 5–15). Cultivation period 1, January 2016–June 2016: ●. Cultivation period 2, October 2016–September 2017: ▲, Locally weighted smoothing line shows the local mean ± 1.96 S.D.
Figure 5. a) Median (± IQ range) mass of carbon lost through blade fall-off and exudation, and b) erosion per longline sampled across both trials (n = 10). c) Median (± IQ range) mass of carbon fixed in biomass and d) harvested per longline sampled across both trials (n = 10).
Figure 6. Mean percentage of net primary productivity (NPP) lost through either blade fall-off or exudation per longline sampled across both trials (n = 10) versus mean NPP per longline across both trials. Exudation: □. Fall-off: ●.
Figure 7. Mean (± S.E) daily carbon exudation rate (n = 36) versus daily growth rate of individual Saccharina latissima sporophytes. Locally weighted smoothing line applied shows the local mean.
Figure 8. Median concentrations of nitrate, nitrite and phosphate in surface waters at the Saccharina latissima farm, Strangford Lough. n = 12 water samples at each date.
