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Brent geese are migratory birds that spend the winter in saltmarshes. They are herbivores that feed on eelgrass and other plants on the salt marsh.

Cockles are a type of shellfish found in the sediment of saltmarshes. They are filter feeders that consume phytoplankton and detritus suspended in the water.

Shore crabs are common crustaceans found in saltmarshes and on rocky shores. They are omnivores that eat small invertebrates, such as cockles and ragworms, as well as detritus.

Sand eels are small, slender fish that burrow into the sand and hide in saltmarshes. These small fish feed on zooplankton such as copepods.

Curlews are large wading bird with a distinctive long, curved beak. They use this long beak to probe the mud for invertebrates like ragworms and shore crabs.

Seabass are a seafood favourite, but are overfished in the UK. They are a predatory fish that hunt small fish like sand eels, as well as feeding on worms.

Saltmarsh grass is a type of grass that survive in salty soils and muds. It is a producer that serves as a food source for brent geese and provides shelter for many small animals.

Zooplankton, like these copepods, are microscopic animals that drift in the ocean. Zooplankton feed on phytoplankton and serve as a food source for sand eels and worms.

Ragworms are segmented worms that live in burrows in the mud. They feed on detritus in the sediment and microscopic animals.

Little egrets are small, white wading birds that hunt in shallow coastal waters. They feed on small fish and crustaceans, such as crabs.

Detritus is formed from dead plant and animal matter. It collects in the mud of the saltmarsh. It serves as a food source for animals like cockles and ragworms.

Phytoplankton are microscopic algae that drift in the water column. They are producers that form the base of saltmarsh food webs. They provide food for zooplankton and shellfish.