OCEAN INFORMATION
TASMANIA
Tasmania has approximately 5,400km of coastline, amounting to more coastline per unit land area than any other state in Australia. No place in Tasmania is more than 115km from the sea. This is more coast than Victoria and New South Wales combined.
What's it like?
Tasmania exists under the vortex of ocean currents that have a profound effect on the marine life of our state. The waters of the Leeuwin Current, the Zeehan Current and the East Australian Current produce at various times of the year widely divergent sea temperatures.
What lives here?
Tasmania has roughly 230 species of fish living in its coastal waters. They can be found in such places as rocky reefs, sandy bottoms or sponge gardens. Tasmania has a high degree of endemic marine biodiversity, with the spotted handfish for example, being native to only the Derwent Estuary.
There are eight bioregions represented in the coastal waters. Undersea mountains exist not far south of mainland Tasmania. These places too, are unique centres of biodiversity. Marine fauna include delicate basket stars and sea dragons, rarely seen endemic handfish as well as dolphins, seal, fairy penguins, great white sharks and migrating whales.
What are the problems?
Degradation of coastal environments
Lack of understanding about coastal and marine management
Overexploitation of marine habitats/fisheries
Habitat destruction
Discharges from land
Decline and loss of estuarine and seagrass habitats
What are the solutions?
Hunan activity is a major agent of change for coastal and marine environments.