Pacific Oyster Aquaculture


This article pacific-oyster-aquaculture-in-south-australia tells the hard raising history of pacific oyster. The first attempt to raise oysters in South Australia. The Native oyster farming failed. Then introduced a native species of Japan. Now present day Pacific oyster farming activities are based in five major areas becoming a major economic contributor. You can see mussel farming net everywhere.

The first attempts to cultivate oysters in South Australia were those by Chief Inspector Randall in Proper Bay from 1910 to 1912 (Grove-Jones 1986). These attempts it seems, were instigated by poor catch rates of the native, mud or flat oyster, Ostrea angasi and an attempt to re-stock natural populations.

Ostrea angasi stocks had been commercial exploited in Coffin Bay and surrounds since the1860's. This lead to the Bay being closed in 1885 to assist recovery of the species. In 1910 Chief Inspector Randall attempted to collect spat and on-grow the native oyster although death rates in the spat were very high and further development was hindered (Grove-Jones 1986).

Native oyster farming was attempted again in the 1960's, however this too failed due to poor

spat survival. At this time it was decided that a hardier species such as the Pacific oyster, Crassostrea gigas, which was being farmed in Tasmania, was required.

The Pacific oyster is a native species of Japan which was first introduced to Tasmania in the 1940's. By the early 1960's Pacific oysters were being farmed in Tasmania and by 1969 the first shipment of Pacific oysters arrived in SA from Tasmania.

Present day Pacific oyster farming activities are based in five major areas in South Australia; Murat Bay, Smoky Bay, Streaky Bay, Coffin Bay and Franklin Harbour, as well as on the eastern side of Yorke Peninsula and the north- eastern side of Kangaroo Island.

Today, the oyster farming industry is a major economic contributor of seafood in South Australia. In 1996/97 $5.8 million of Pacific oysters were produced in South Australia, an increase of approximately 48% from 1995/96 values. Demand for oysters currently outstrips supply, and by the year 2000 the South Australian industry expects to be producing 3.5 million dozen oysters a year, worth around $12.5 million.

By the way, with the developing history of feeding oyster, the related effect  goes to the packaging industry. As the packadging industry is growing quickly. We can not only use extruded net bag to pack oyster for sale in markets, but also in feeding industry of the oyster. The extruded net  has been a great helper for farmers in feeding oyster.

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