NOVELTY - Floating oxygen supply device comprises a wind power impeller part which operates a underwater bubbling apparatus by using 0.75 kW electricity produced by a wind power impeller during a cloudy day on which power generation from solar power at low altitude is difficult in daytime, a solar power panel part which operates the underwater bubbling apparatus by supplying the power produced by the solar power panels in daylight conditions at sufficient altitude from sun's radiant energy, a driving part, and a conveyance induction part based on underwater dissolved oxygen (DO) concentration gradient.    USE - The device is useful for low-oxygen water mass habitat (claimed).    ADVANTAGE - The device relieves the low-oxygen area within public water area and minimizes the adverse effects on the growth of marine creatures and ensures water management.    DETAILED DESCRIPTION - Floating oxygen supply device comprises a wind power impeller part which operates a underwater bubbling apparatus by using 0.75 kW electricity produced by a wind power impeller during a cloudy day on which power generation from solar power at low altitude is difficult in daytime, a solar power panel part which operates the underwater bubbling apparatus by supplying the power produced by the solar power panels in daylight conditions at sufficient altitude from sun's radiant energy, a driving part for measuring the bubbles transferred by the bubbling apparatus and delivering to a deep seawater low-oxygen region, and a conveyance induction part based on underwater dissolved oxygen (DO) concentration gradient for inducing the conveyance of bubbles if the DO concentration in the habitat is lowered to less than 3.5 parts per million until the DO concentration in the habitat is reaches 9.1 parts per million and then terminating the conveyance of bubbles.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic representation of the floating oxygen supply device (Drawing includes non-English language text).