Use　of　aerobic　denitrifying　consortia,　as　a　new　efficient　tool　for　nitrogen　removal,　has　attracted　widespread　attention　because　of　their　stable　and　efficient　nitrogen　removal　ability.　Yet,　little　attention　has　been　given　to　highly　efficient　aerobic　denitrifying　consortia　from　mariculture　environments.　In　this　study,　a　natural　aerobic　denitrifying　consortium,　named　C3,　was　obtained　by　an　enrichment　technique　from　a　coastal　mariculture　area　of　Dongshan　Bay　of　Fujian　Province,　China.　In　culture,　it　exhibited　good　and　stable　nitrate　removing　performance.　Nitrogen　mass　balance　indicated　that　49.30%　of　the　initial　TN　was　converted　into　gaseous　nitrogen　and　49.63%　was　assimilated　to　biomass　nitrogen.　High-throughput　sequencing　and　network　analysis　revealed　that　Pseudomonas　and　Fusarium　were　putative　dominant　aerobic　denitrifying　bacterial　and　fungal　species,　respectively,　cooperating　with　Exophiala,　Penicillium,　Mortierella,　Neocamarosporium,　Neocosmospora,　Sterigmatomyces,　Thelebolus,　Thermomyces,　Cutaneotrichosporon　and　Gymnopilus　to　perform　aerobic　denitrification.　In　addition,　four　Pseudomonas　strains　have　been　successfully　isolated　from　consortium　C3,　which　supported　the　inference　that　Pseudomonas　was　the　dominant　contributor　in　the　aerobic　denitrifying　consortium　C3.　These　results　will　offer　novel　insights　into　aerobic　denitrifying　consortia　in　mariculture　environments　for　biotechnological　nitrogen　pollution　removal.　©　2023　Elsevier　Ltd