Amongst other things, we need to stop them from getting plowed down by container  ships when they're in their feeding areas, and stop them from getting entangled in fishing nets as they float around in the ocean.
Entre outras coisas, precisamos de fazer com que elas deixem de ser afundadas por navios porta-contentores quando estão a alimentar-se, e de ficarem emaranhadas  nas redes de pesca enquanto flutuam no oceano.