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Have You Ever Wondered About the Difference Between Shrimp and Prawns?

In the restaurant business and commercially, the terms ‘shrimp’ and ‘prawn’ are often used interchangeably. However, these aren’t the same creature. They are merely similar, just as an apple and an orange are similar.

Prawns and shrimp are decapods. That is, they are crustaceans that have 10 legs. The general appearance is similar and both are found in both the ocean and in fresh water.

They are also cooked in the same ways and the flavor is quite similar. Most people can’t tell the difference in taste.

However, prawns tend to be larger and they have pinchers on three pairs of legs. Shrimp only have pinchers on two pairs of legs. The gill structure is also different. Scientifically, they belong to two separate sub-orders. Prawns belong to Dendrobranchiata while shrimp belong to Pleocyemata.

Despite this, they are similar enough, and there is enough confusion between the two, that frequently prawns are called shrimp and shrimp are called prawns. In the US, both tend to be called shrimp. In the UK, both tend to be called prawns.

Of the people who farm these animals for consumption, those found in the ocean are called shrimp and those found in freshwater are called prawns. However, this is incorrect. There are shrimp that live in fresh water and prawns that live in saltwater.

The bottom line is that if you are a purist, prawns and shrimp are quite different creatures. If you really don’t care what they are called and simply enjoy eating them, call them whichever you want to. Almost everyone else does anyway. It probably doesn’t make a lot of difference unless prawns are selling for more money than shrimp, or the other way around. You can buy the one that is the least expensive, knowing that it will be hard to taste the difference.

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Written by Rex Trulove

17 Comments

  1. Very interesting! They’re both orange in color! And, if you’re going to peel off the shrimp and the prawn, they’d look almost the same. Hehe!

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    • I already explained that. In a nutshell, they have different gill structures and prawns have pinchers on three pairs of legs while shrimp have pinchers on two sets of legs. They are quite different, but they look very similar and taste very much alike.

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