Organic matter degradation and bacterial communities in surface sediment influenced by Procambarus clarkia.

ABSTRACT: To alleviate excessive organic matter (OM) accumulation in sediments and reduce the risk of endogenous water pollution and eutrophication in aquaculture ponds, an 84-day experiment investigated the effect of the red swamp crayfish Procambarus clarkii on the OM degradation and bacterial communities in sediments. The experiment established two groups, P. clarkia treatment and control (represented as PG and CG, respectively), with three replicates for each group. At the end of experiment, the total, light fraction, and heavy fraction organic matter concentrations in the sediment of the PG group were significantly lower than those of the CG group. Significantly higher oxidation-reduction potential (ORP) and more extensively degraded OM, indicated by fatty acids, were observed in

SUBMITTER: Hou Y 

PROVIDER: S-EPMC9634481 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature