Fungal productivity can be just as high in Maine cordgrass as it is in Florida cordgrass. Here's a major sink for the mass produced by saltmarsh ascomycetes. Periwinkles like mycelial spaghetti . Dew permits snails to climb . There is at least one other snail that eats naturally-decaying marshgrass.
Baby snails can be colorful .
At least one crustacean also grazes decaying marshgrass. Amphipods can very selectively grab fungal stuff . There are two species of crabs that are suspects as saltmarsh-fungal grazers. The marsh-edge squareback eats mushrooms when it roams into the edge of the forest. Here's a reconfigured saltmarsh model that explicitly recognizes fungi and their grazers.