In this project, scientists surveyed the fishes and macroinvertebrates of deep, rocky banks and outcrops, underwater pinnacles, submarine canyons, cobble fields and mud flats of eight of the new Central Coast marine protected areas (MPAs) and associated reference sites. Because these surprisingly colorful demersal habitats are beyond the reach of divers and ROVs, scientists conducted their baseline study from the manned submersible Delta. All observed fish were identified and measured (using paired lasers). Scientists also videotaped each dive and later analyzed the images to characterize all structure-forming invertebrates and benthic habitats.