estaban volcando
Imperfecto progresivo para el sujetoellos/ellas/ustedesdel verbovolcar.

volcar

Situados en las proximidades de unas embarcaciones atuneras, que daba la impresión de que estaban volcando sus capturas vivas a una jaula de engorde de atún rojo transportada por un remolcador.
They were positioned near some tuna fishing boats, which gave the impression that they were dumping their live catch into red tuna fattening cages being carried by a tug.
Palabra del día
el maquillaje