I think it because it is more dangerous for them.Hope its right and might gave u a little hint
continental shelf
Study and don't depend on others to do your home work
The continental shelf is home to a variety of benthic animals that live buried at the bottom of the ocean. Examples of some are, common whelk, blue mussel, Neptune whelk. periwinkle, Yoldia hyperborea, sand gaper, limpet, scallop, chiton, common starfish, green sea urchin, brittlestar, ragworm, pectinaria worm, scaleworm, skeleton shrimp, isopod, barnacle, benthic amphipod
The shelf life of unopened petroleum jelly is around 3 years.
Anemones are found in all marine habitats, at various depths. They are found in all temperature ranges and remain in the same spot until conditions become unsuitable.
Continental slope
Because for the most part, the continental shelves are where the fish are.
The continental shelf is an extension of the cotton, only beneath water. The continental slope begins beyond the shelf and slopes downward.
Deep ocean basin
The shallow extension of the continent that extends beyond the shoreline is called a continental shelf. It is the submerged part of a continent that extends from the shoreline to a drop-off point called the shelf break.
The deepest, darkest area of the ocean that is beyond the edge of the continental shelf.
shelf
The continental shelf starts from the shore to a few miles out with less gradient of slope. The continental slope starts after shelf-break with a higher slope gradient, then follows the continental rise and abyssal-plain.
Approximately 15-20% of sediments eroded from the continents reach beyond coastal regions to the continental shelf and slope. The majority of eroded sediments tend to accumulate and deposit near the coast due to factors such as wave action and currents.
Continental Slopes.
Land. Continental shelf.
the continental shelf-edge or shelf-break