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Australia’s Oceanic Connection – an introduction

Australia’s 200-nautical-mile Exclusive Economic Zone, proclaimed in 1994, is over 11 million square kilometres in area, excluding Antarctic waters, and is the third largest in the world. The total area of the continental shelf around our continent, as defined by the 1982 United Nations Convention on the Law of the Sea, is 14.8 million square kilometres. […]

Soft Bottoms and Seagrass Meadows

Vast areas of Australia’s continental shelf are covered with a mosaic of mud, sand and gravels — the so-called soft bottoms. These materials are produced by the local erosion of country rock or shifted distances by water movement that is generated by wind–wave action, long-shore or cross-shore drift, or strong ocean currents. How far these […]

Tropical Estuaries, Mangroves and Mudflats

May 12: … at eleven three quarter miles [c. 19 kilometres] over very bad travelling country, plains subject to much inundation, to a creek running into the river, with splendid water and feed; at twelve and a half miles [c. 20 kilometres] came to the river, with an immense sandspit opposite; appears to be within […]

Rocky Coasts, Islands and Reefs

It is here, on the continent’s rocky coasts, islands and reefs, that the land fights a losing battle with the sea. Constant sorties, waged by ocean wave and current, blow apart and grind down the continent’s rocky skeleton. The water’s erosive weapons are explosive compressed air, rolling boulders and abrasive sand. The present attack, which […]

Temperate Estuaries, Mangroves and Mudflats

Because estuaries tend to be more productive than either the sea on one side or the freshwater drainage on the other, they function as the nursery and feeding grounds for a very large percentage of fish taken by commercial and amateur fishermen on our coasts. Prawn and oyster production is almost entirely estuarine dependent. In addition, […]

Tropical Coasts, Reefs, Cays and Islands

The island itself was high; we ascended the hill and when we were at the top saw plainly the Grand Reef still extending itself Parallel with the shore at about the distance of 3 leagues [15 km] from us or 8 [40 km] from the main; through it were several channels … A Reef such a […]

Beach and Coastal Dune Communities

Land this morn very sandy. We could see through our glasses that the sands which lay in great patches of many acres each were moveable; some of them had been lately moved, for trees which stood up in the middle of them were quite green, others of a longer standing had many stumps sticking out […]

Warm-temperate and Tropical Oceans

Habitat and biodiversity Oceans have supported life for millennia, possibly longer than any other habitat, allowing time for marine environments to become populated by life forms that have adapted to suit rigorous environmental conditions. In the oceanic water column, life is arranged in layers, depending upon light penetration, water temperature, nutrients and the availability of […]

Southern Great Barrier Reef Marine Parks

Capricorn–Bunker Group The “first lady” of the Great Barrier Reef, Lady Elliot Island, is a coral cay that first appeared above sea level approximately 3500 years ago. Today it is an eco-friendly resort island serviced by regular flights from Bundaberg Airport (around 30 minutes flying). Daytrips by air are also possible from Bundaberg and Gladstone. […]

Sea Pens — quills of the sea floor

One of the oceans most spectacular invertebrate animals and it is one of my favourite.  i first encountered these creatures while diving at night in the estuaries of Jervis Bay.  I was stunned to see the seafloor covered with these soft-bodied creatures all swaying in unison in the undulating currents.  Steve Sea pens are strange […]

SYDNEY TO BRISBANE - TOP TIPS ALONG THE ROUTE
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SYDNEY TO BRISBANE - TOP TIPS ALONG THE ROUTE
FREE eBook - Get It Now!

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