The world’s abalone are threatened, endangered or otherwise vulnerable in nearly every corner of the planet. While captive breeding efforts are underway for some species, these giant sea snails are notoriously difficult to spawn. If only we could wave a magic wand to know when abalone are ready to reproduce, without even touching them.
Click here for original story, Ultrasounds proven an effective, hands-off way to help spawn endangered abalone
Source: Phys.org