shrimp
on the seabed
from forest to deserts to caves & seabed muds
As Methane Hydrants form at low temperature and at high pressure, they can be found on the seabed and in arctic perma-frost.
shelly seabed
Barnacles.
Raw shellfish
easy, mining on the seabed, or mining on the bottom of the sea
International Seabed Authority was created in 1994.
Mussels and oysters are at least two that I know of for sure.
Shellfish limits depend on one's location. Some links for the bag limits of each state and the Northern Territory can be found below.
The seabed and land are connected, however ,seabed is covered with water and therefore lies largely undiscovered to man. Due to the different organisms using the land or seabed as their habitat, the mineral make-up of the two may differ.
The plural of shellfish is shellfish.