In this study we analyzed the effects of bioturbation on phosphorus dynamics in reconstructed estuarine sediments. We measured sediment oxygen demand (SOD) and dissolved inorganic phosphorus (DIP) fluxes, pore water chemistry (DIP, Fe(II), Mn(II), pH and redox potential) and solid-phase Fe(III) pools in reconstructed sediments without or with surface (the amphipod Corophium volutator) and deep (the polychaete Alitta succinea) burrowing macrofauna. Measurements were carried out after a two-weeks preincubation to allow sediment conditioning by macrofauna (e.g., burrow construction and burrow walls oxidation, steady chemical gradients within sediments and between pore- and bottom waters).
The datasets contain the sediment oxygen demand and the fluxes of dissolved inorganic phosphorus and the pore water characteristics measured in the four treatments: control with defaunated sediment (C), sediment with amphipods (A), sediment with polychaetes (P) and sediment with both species -C. volutator and A. succinea- (AP).
The research leading to these results has received funding from the Norway Grants 2014-2021 operated by National Science Centre under Project entitled “Benthic coastal buffers against climatic and eutrophication extremes (BUFFER)”, Contract No 2020/37/K/NZ8/02782.
Data deposited in the repository was saved in .xlsx format.
The dataset named “fluxes_bioturbation_goro” includes information about fluxes of oxygen and dissolved inorganic phosphorus measured at days 15 and 19 in the four treatment. All fluxes are expressed in µmol m-2h-1.
The dataset named “porewater_bioturbation_goro” contains the pore water characteristics measured at the end of the experiment in the four treatments.
The "README" file includes a description of the data collection and the material and methods employed for the experiment.
(2023)
