Shrinking Saltmarsh

Minnamurra-river-shrinking-saltmarshSalt marshes are home to a variety of invertebrates including crabs,molluscs and insects.These animals provide tasty meals for fish such as yellowlin bream when the saltmarsh is Inundated by high tides, as well as food for birds, bats and other animals. Some water birds that utilise saltmarsh for food and habitat and migrate from as far away as China!

One recent dlscovery ls that crabs living in saltmarshes release large quantities of larvae when inundated by the tides. The larvae can make up to 90% of the diet of some species of fish in the esturary. This makes the saltmarsh zone a valuable source of food for many small and juvenile fish species, which in turn are food for other larger fish species including those valued by fishers.

A lack of awareness of the Importance of saltmarshes has lead to their decline in NSW estuaries. SaItmarsh plants are vulnerable to a range of disturbances including trampling, dumping of garden wastes, changes to tidal Inundatlon, and grazing.

This plaque is one of many found around the district. The plaques discribe the history of their locations. They were commissioned by Kiama Council in 2009.

If you had seen them around, you are welcome to have a look at the collection of plaques in the district.