| Sampling Device | Sampling Footprint | Weight |
| Square Dredge | 17″ x 24″ | |
| Square Dredge | 15″ x 36″ | |
| Round Dredge | 24″ diameter | |
| Rock Core | 1.25″ diameter |
Rock dredges are drug along the bottom of the ocean, chipping off and catching bits of rock from the sea floor. MARSSAM has several styles of dredges available.
