Factors determining nutrient distribution in sediments and porewater in a semi-confined coastal environment subject to anthropogenic pressure.

ABSTRACT: Increasing inputs of nutrients and organic matter from urban areas accumulate in coastal sediments, which act as a storage compartment that can trigger eutrophication events, and promote organism mortality. The aim of this research was to evaluate the factors that determine the distribution of nutrients in sediments and porewater from a coastal environment. Jurujuba cove receives nutrients and organic matter inputs from diffuse sources (mainly domestic sewage) and from intensive mussel farming. Fifteen sediment samples were collected. pH and Eh were measured in situ. Sediments were centrifuged to extract porewater, where dissolved nutrients were analyzed. Total phosphorus and total organic carbon were analyzed in the bulk sediment by spectrophotometry and titration, respectively. Granulome

SUBMITTER: de Pontes GC 

PROVIDER: S-EPMC12929330 | biostudies-literature | 2026 Feb

REPOSITORIES: biostudies-literature