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Mudflats

Wavy Volute (Photo: Jonathon Stevenson)

Wavy Volute (Photo: Jonathon Stevenson)

Photo by: Parks Victoria

Location: Mudflats

Sharptailed Sandpiper (Photo: Sarah Green)

Sharptailed Sandpiper (Photo: Sarah Green)

Photo by: Parks Victoria

Location: Mudflats

Moon Snail (Photo: Mark Rodrigue)

Moon Snail (Photo: Mark Rodrigue)

Photo by: Parks Victoria

Location: Mudflats

Flatworm (Photo: Mark Rodrigue)

Flatworm (Photo: Mark Rodrigue)

Photo by: Parks Victoria

Location: Mudflats

Soldier Crab (Photo: Mark Rodrigue)

Soldier Crab (Photo: Mark Rodrigue)

Photo by: Parks Victoria

Location: Mudflats

Mudflats are places without vegetation where low tides leave soft muddy sediments exposed to the air. They are important feeding areas for many birds and fish.

Mudflats are teeming with worms, small crustaceans such as crabs and burrowing shrimp, and a variety of snails and other molluscs, many of which use broken down organic debris washed into these areas for food.

Mudflats are made up of very fine particles that restrict water movement into the soil and have little oxygen below the surface. This contributes to the black colour and smelly gases produced in these habitats. These characteristics are due to the activities of bacteria that can survive in the thick airless mud.

Most animals that live in the mud have burrows or special features that allow them to get oxygen from the water above. Animals found in mudflats include Soldier Crab (Mictyris platycheles), Flatworm (Platyhelminthes), Moon Snail (Polinices conicus), Sharptailed Sandpiper (Calidris acuminate) and Wavy Volute (Amoria undulate).

Key Threats

  • Poor water quality entering the sea from catchments
  • Fishing or removal of animals and plants
  • Marine pests such as the European Green Crab (Carcinus meanus) or green algae known as Broccoli Weed (Codium fragile ssp. tomentosoides)which compete for food or space
  • Boat and anchor damage in shallow areas
  • Oil and chemical pollution
  • Climate change effects including sea level rise, warming sea surface temperatures, and increasing ocean acidity.

Where to see mudflats

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Wimmera Heritage River Click to view the news RSS feed.

Please do not collect firewood from Wimmera Heritage River

19 May 2017

Parks Victoria is reminding the community that firewood collection and removal from the Wimmera Heritage River is not permitted.A fine and infringement notice has recently been issued after an individual was caught on remote camera illegally harvesting firewood from the area.Parks Victoria is seeking to raise awareness of the river’s…

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Werribee Park Autumn Plant Sale

27 May 2017 10:00am-3:00pm

Over 1600 trees, plants and herbs for sale. Proceeds to Werribee Park volunteer groups. Enter via Gate 2 - Main Visitors Car Park

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Friends of Glen Nayook working bee

28 May 2017 9:00am-11:00am

You are cordially invited to attend Friends of Glen Nayook's next working bee. The focus will be on removing debris and clearing overhead branches on the bottom loop and if time permits, clean up in the carpark area. It would be greatly appreciated if you brought along tools (loppers, rakes…

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Federal Cave Tour

3 Jul 2017 3:00pm-4:00pm

This historical tour provides a unique opportunity to view a cave that is rarely open to the public and is part of the same cave system as the Royal and the Fairy show caves. Lit only by solar-powered pathway lights, you are provided with a helmet and headlight to view…

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Murrindal Cave Tour

4 Jul 2017 1:00pm-2:30pm

A rare opportunity to visit spectacular caves located to the north of Buchan. Be prepared for something very special. The tour requires a 14 km drive north of Buchan and a reasonable level of fitness. Discounts apply for multiple tours.