Canyon conditions impact carbon flows in food webs of three sections of the Nazaré canyon



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Figure legends


Fig. 1. Food webs picturing scaled carbon flows (mmol C m-2 d-1) in the upper, middle and lower sections of the Nazaré canyon. All carbon flows are depicted in the top row (A-C), carbon flows are truncated at a maximum value of 1.5 mmol C m-2 d-1 in the middle row (D-F) and at 0.15 mmol C m-2 d-1 in the bottom row (G-I). See Table 1 for abbreviations of food web compartments. Other abbreviations are: DOC is dissolved organic carbon in the sediment, lDet_w, sDet_w and rDet_w are labile, semi-labile and refractory detritus in the water column, DOC_w is dissolved organic carbon in the water column and DIC is dissolved inorganic carbon.
Fig. 2. Faunal diets in the upper (A), middle (B) and lower (C) sections of the Nazaré canyon. See Table 1 and Fig. 1 for abbreviations.
Fig. 3. Fate of secondary production (%) of prokaryotes (A-C), meiofauna (D-F), macrofauna (G-I) and megafauna (J). Absolute production (mmol C m-2 d-1) is plotted above the compartment. The possible fates of this secondary production are maintenance respiration (“maint”), mortality other than predation (“mort”), export (“exp”) and predation by meiofauna (“mei”), macrofauna (“mac”) and megafauna (“meg”).
Fig. 4. Box plots of the network indices total system throughput  (A), Finn cycling index  (B) and average mutual information (C) of the upper, middle and lower sections of the Nazaré canyon.

Figure 1



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