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Snails

Snails. Salt marsh periwinkle, Littoraria irrorata sea snail, a marine gastropod mollusk Found in salt marshes on Atlantic Coast Occur at high densities 100 ind/m 2. Snail Parts. Fungal Farming. At low tide eat organic matter on sediment surface

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Snails

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  1. Snails • Salt marsh periwinkle, Littoraria irrorata • sea snail, • a marine gastropod mollusk • Found in salt marshes on Atlantic Coast • Occur at high densities • 100 ind/m2

  2. Snail Parts

  3. Fungal Farming • At low tide eat organic matter on sediment surface • At high tide climb Spartina and feed on fungi U. S. Geological Survey. Photographer Ellen Raabe

  4. Mechanics • Snails create wounds (radulations) in Spartina leaves Silliman and Newell 2003

  5. Mechanics • Feed on infected leaf material • Fertilize fungi with feces Silliman and Newell 2003

  6. Mechanics

  7. Predators • The squareback marsh crab • Atlantic mud crab • Blue crab • large fishes, birds and mammals

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