Marine - Port Phillip Bay

by MrReGlog
Last updated 9 years ago

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Marine - Port Phillip Bay

MarinePort Phillip Bay

Port Phillip Bay covers 1,950 square kilometres with an average depth of 13 metres. The Bay consists of a variety of habitats including sandy seafloor, seagrass beds and rocky reefs. Most of the seafloor is sand and silt which is home to many invertebrates. These areas of sand are in some parts covered by dense seagrass meadows that provide important habitat for much marine life. Rocky reefs can also be found on some margins of the Bay often being dominated by hundreds of different seaweeds.

Sculptured GobyAustralian Burrfish Spotted Pipefish Trident Goby

Spotted Pipefish

Australian Burrfish

Threat to the EcosystemUndaria is a golden brown seaweed that grows between 0.5 and 3 metres in length. Key features of Undaria are frilly growth at the base and a stripe up the middle of the frond. It is native to Japan, Korea and some parts of China and Russia, and used as the food product wakame.Undaria is a fast-growing marine pest and poses a threat to the Victorian marine environment. It has been nominated as among 100 of the world’s worst invasive species according to the Global Invasive Species Database. Undaria is already within Port Phillip Bay and has recently been discovered in Apollo Bay Harbour.DSE is working closely with the Department of Primary Industries, Parks Victoria and Colac Otway Shire to manage the infestation in Apollo Bay Harbour.

Alex Wales