I decided to continue on with the subject of sea cucumbers for this article, because there are many subjects that I mentioned but never really discussed at any length in the last article about medusa worms (Toonen 2002). The feet can be extended or contracted by varying the internal fluid pressure. Sea cucumbers might not look it, but they are very valuable creatures — a kilo can cost over $3,000. Additionally, cucumbers have a high water content. Sea cucumbers are part of a larger animal group called echinoderms, which also contains starfish and sea urchins. Their body shape is similar to a cucumber, but they have small tentacle-like tube feet that are used for locomotion and feeding. Sea cucumbers propel themselves by means of tubular extensions or tube feet arranged in rows along the length of their bodies. Answered by MSC Commercial Manager UK & Ireland, Seth McCurry Lauded for their medical and health benefits, sea cucumbers have been a delicacy in China since the Ming Dynasty. Sea cucumbers are nocturnal creatures that are active at night. What they do is that the males just release sperm into the water and the females just release their eggs into the water. In addition to their culinary appeal, sea cucumbers have been used as a traditional food source and medicinal ingredient in Asian and Middle Eastern countries for centuries. But like many coastal species they have been chronically overfished. Sea Cucumbers have a very interesting way of mating. sea cucumber, any of the flexible, elongated echinoderms belonging to the class Holothuroidea. Sea cucumbers are rich in antioxidants and polyphenols (micronutrients from plant-based foods), which have been linked to a reduction inflammation in the body. Behavior. One remote community in Madagascar has started a pioneering coastal-farming project with astonishing results. ; They are so prized that people will risk their lives to get ahold of one. They are not in the least bit intimate and it involves little to no interaction with the other Sea Cucumbers. Why do people eat sea cucumbers? The average lifespan of sea cucumber creatures is between five and ten years. The tentacles are usually fingerlike. Storage and Soaking Storing dried sea cucumber isn’t difficult—simply put them in a cool and dry place. Although sea cucumbers have the basic echinoderm radial symmetry [1] (see Echinodermata [2]), they do not have arms like starfish. In fact, cucumbers are made up of about 96% water ( 2 ). To maximize their nutrient content, cucumbers should be eaten unpeeled. Sea cucumber doesn’t have much taste. Pack the sea cucumber and put it in the fridge if you are not going to use it for a long while. In fact, I am going to do one more article on sea cucumber after this one, but I’ll focus specifically on the colorful and popular sea apples ( Pseudocholchirus spp.) They are similar to snails and slugs. 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