The　Internet　of　Things　(IoT)　is　faced　with　many　challenges　when　deployed　in　aquatic　settings,　which　include　suboptimal　signal　reception,　elevated　bit　error　rates,　and　significant　equipment　overhead.　Long　Range　(LoRa)　is　currently　a　widely　used　IoT　technique.　This　study　explores　an　effective　LoRa-based　ad　hoc　wireless　system　for　monitoring　water　environments.　We　introduce　an　innovative　dipole　antenna　that　is　tailored　for　subaqueous　end　nodes　to　substantially　amplify　wireless　communication　efficacy　between　underwater　apparatuses　and　terrestrial　units　without　necessitating　increased　transmission　power.　Furthermore,　we　propose　a　LoRa-centric　ad　hoc　networking　protocol　that　eliminates　the　need　for　specific　network　servers　and　dedicated　gateways,　as　mandated　by　LoRa　wide　area　network　guidelines.　Experiments　reveal　that　the　advanced　antenna　improves　the　downlink＇s　received　signal　strength　indicator　(RSSI)　by　an　impressive　11.6　dB.　When　the　subaqueous　end　nodes　operate　at　a　submersion　depth　of　2.2　m,　the　message　interchange　success　rate　increases　by　more　than　44.6%.　In　an　operational　experiment　including　20　nodes　operating　over　60　hours,　the　network＇s　average　success　rate　for　message　exchanges　exceeds　98.5%.　Leveraging　these　dual　innovations,　we　present　a　scalable,　costefficient,　and　energy-constrained　IoT　framework　for　markedly　increasing　the　effectiveness　of　aquatic　environment　surveillance　and　management.