Ecological and Environmental Impacts of Reduced Shells


Beach Degradation
Shell material scattered along shorelines can stabilize sediments by forming pavements that impede sediment movement, and shell loss may alter the rate and pattern of shoreline sediment erosion.

 
Affects Calcium Carbonate Cycle
Shells settle on the seafloor, storing calcium carbonate for long periods of time and becoming an important carbon sink. Shells on beaches play an important role in ocean carbon pools.


Iimpact On Biodiversity
Shells anchor seagrass and serve as homes for hermit crabs, building materials for seabirds, and more. Decreased shells may also have negative impacts on a wide range of organisms.

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