Robert Mccauley's Vocabulary

Though the ocean seems like a very quiet place, but if listens carefully, one might just hear the sounds of the fish choir. Most of this undersea music comes from soloist fish, reiterating the same calls again and again. But when the calls of different fish ………………….co existed , coincide ,combine, mingle with this, they form an ensemble. Robert McCauley and his counterparts of Curtin University in Perth, Australia, discovered seven definite fish choruses, occurred mainly at dawn and at dusk ; by recording vocal fish in the coastal waters off Port Headland in Western Australia over a time period of one and a half year. The low “foghorn” call is ........................ pronounce, enunciated, utter , conceal by the Black Jewfish while the “grunting”