Aquatic sill
An aquatic sill (or an oceanic sill) is a sea floor barrier of relatively shallow depth restricting water movement between oceanic basins.[1] A similar barrier can also exist on a lake floor.
Aquatic sills as barriers
An aquatic sill can be a biogeographic barrier for species located in deep basins on either side. On top of an aquatic sill, water is often warmer than deeper water.[1]
An aquatic sill can restrict movement of water masses in the bottom, and also results in their isolation, which can be partial, and is sometimes near total.[2]
Examples
See also
- Beach evolution
- Sill (geology)
- Coastal management, to prevent coastal erosion and creation of beach
- Drop structure, manmade sill in the sea
References
- ^ a b "Sills". Sills. Blue Habitats. Retrieved 25 September 2017.
- ^ "Ocean Basin".
External links
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