acoustic buoy

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Noun1.acoustic buoy - a buoy that can be heard (at night)acoustic buoy - a buoy that can be heard (at night)
buoy - bright-colored; a float attached by rope to the seabed to mark channels in a harbor or underwater hazards
bell buoy, gong buoy - a buoy with a bell on it
whistle buoy, whistling buoy - a buoy that makes a whistling noise
References in periodicals archive ?
Contract notice: Providing Acoustic Buoys Nato Like "Lofar Ssq 906G" And "Hidar Ssq 955 ".
The inaugural Southern Ocean trip of the Antarctic Blue Whale Project involved deploying acoustic buoys west of the Ross Sea to pick up blue whale songs, which can be detected from hundreds of kilometres (miles) away.
The International Fund for Animal Welfare (IFAW) has installed high-tech acoustic buoys to track right whale migrations in the busy Great South Channel off the northeastern US.