A Cajun-style restaurant offering these animals in menu items would be likely to use crawfish instead of crayfish , in an attempt to promote or preserve regional authenticity. Crayfish and crawfish are two different ways to spell the same word. In most contexts, including taxonomy, biology, and everyday use, crayfish is the standard term. Crayfish is also standard outside of the United States. In the context of regional cuisine, however, crawfish is more recognizable.
Crayfish would look out of place in contexts involving Southern cooking, so even though crawfish is not technically standard, it is the better choice. You can remember to reserve crawfish for regional dishes like gumbo since crawfish and New Orleans, a hotbed of American Cajun food ways, are both spelled with the letter W. Is it crayfish or crawfish? Crayfish and crawfish are two spellings of the same noun, which refers to a small freshwater crustacean.
These animals are prized for their use as bait and as ingredients in several Southern-influenced dishes; otherwise, they are sometimes considered invasive species. Since crawfish and New Orleans both contain the letter W , and are both related to Cajun food, you can use that letter as a mnemonic device to help you remember when crawfish is more appropriate.
Signal crayfish were introduced to UK from America in the s. These have created quite a problem in the UK as they erode riverbeds with their burrowing and pose a grave threat to native freshwater crayfish. They were brought over for farming but escaped and evolved as they can survive for months out of water. The British seawater crawfish is a beautiful spiny crustacean, orange and golden in colour and covered in spines, hence their nickname as the spiny lobster.
The claws are smaller and pincer shaped. They are equipped with spiky multi-purpose front legs and huge rough antennae that they use to defend themselves. The average size is 1. However, the two names came in different times and those were coined by two different scientists.
Crawdad is another referred name for these crustaceans. These animals have been classified under three taxonomic families and two of which are distributed in the northern hemisphere with the highest diversity in the North America more than species in nine genera.
There are seven species is two genera in Europe while the Japanese species is endemic to the region. The Madagascan species and Australian species are endemic to those regions, and it would be important to know that there are more than species distributed in Australia.
It would be interesting to notice that there is a pronounced difference between families of Southern and Northern hemisphere crawdads, which is the absence of the first pair of pleopods in the Southern hemisphere family.
Their anatomy is completely decapodan with two main body tagma cephalothorax and abdomen. The external appearance is much like a lobster with two large fore-appendages but only smaller.
The whole body length of a crayfish or crawfish is about 17 — 18 centimetres.
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