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Overstocking of crayfish can lead to higher rates of mortality, which is associated with higher rates of cannibalism and increased competition for shelter and food. [9] New Zealand Clearwater Crayfish Ltd farm grows the northern koura species P. planifrons using a gravity-fed system with pond culture and raceways. A key step in this koura farm ...
Jasus edwardsii, the southern rock lobster, red rock lobster, or spiny rock lobster, is a species of spiny lobster found throughout coastal waters of southern Australia and New Zealand including the Chatham Islands. It is commonly called crayfish in Australia and New Zealand and kōura in Māori. [3]
In the United States, crayfish are often referred to as crawfish, crawdads, fiddlers, crawdaddies, or mudbugs. As of 2018, 93% of crawfish farms in the US were located in Louisiana. [9] In 1987, Louisiana produced 90% of the crayfish harvested in the world, 70% of which were consumed locally. [10]
Aquaculture started to take off in New Zealand in the 1980s. It is dominated by mussels, oysters and salmon. [2] In 2007, aquaculture generated about NZ$360 million in sales on an area of 7,700 hectares. $240 million was earned in exports.
In Australia, New Zealand, and South Africa, [27] the term "crayfish" or "cray" generally refers to a saltwater spiny lobster, of the genus Jasus that is indigenous to much of southern Oceania, [28] while the freshwater species are usually called yabbies or kōura, from the indigenous Australian and Māori names for the animal, respectively, or ...
This and other colorful crayfish had been increasingly popular items among aquarium enthusiasts for the past 10 years or so and have been up for sale under various names in Asia, Europe, and North ...
The Tasmanian giant freshwater crayfish (Astacopsis gouldi), also called Tasmanian giant freshwater lobster, is the largest freshwater invertebrate and the largest freshwater crayfish species in the world. The species is only found in the rivers below 400 metres (1,300 ft) above sea level in northern Tasmania, an island-state of Australia.
The Parastacidae are the family of freshwater crayfish found in the Southern Hemisphere. The family is a classic Gondwana -distributed taxon, with extant members in South America , Madagascar , Australia , New Zealand , and New Guinea , and extinct taxa also in Antarctica .