The WHOI scientists demonstrated the new sonar methods off the coast of Monterey, California, where fishermen harvest squid in April and May as the squid return annually to spawn and lay clusters of finger-sized egg capsules on the seafloor. The scientists learned how to distinguish subtle sidescan sonar signals reflected off gelatinous egg clusters and the adjacent sandy seafloor, and they could detect egg clusters less than 20 inches (0.5 meters) across.

See Woods Hole Media Release