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Prey item Before heavy logging
Partially data from Kao et al. (2003).
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Furthermore, the samples from the southern inner shelf had lower C/N ratios than those in the YRE (Table 1), indicating a more presence of marine-derived OM. It is also reported that the soil-derived OM adsorbed onto fine fraction can selectively transport out of the estuarine area along the main GTP binding protein 1 fragment dispersal system (Tesi et al., 2007). Considering the potential sediment sorting caused by the physical reworking as noted above, the preferential alongshore transport of fine-grained sediments in the coastal ECS with more non-woody biogenic (see below) and soil-derived OM could also be responsible for the obvious southward decreasing gradient of the C/N ratios (Fig. 3a). This indicates that the re-suspension and alongshore transport of sediments could be not only responsible for the accumulation of SOM but also play a role in the elemental signature of SOM in beta decay region.
3.2.2. Aliphatic hydrocarbons
Table 2.
Concentrations of n-alkanes and hydrocarbon parameters for surface sediments in the estuary area and southern inner shelf.





 
 
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