10 Interesting Facts About Shrimp

Shrimp are swimming crustaceans with ten legs, categorized under the Caridea order. They have a body that is compressed from one side to another, lamellar gills, fan-like tails, an outer skeleton that is thin and transparent, and long antennae. They are present in both freshwater and saltwater bodies throughout the world. These sea dwellers are vital in the food chain as they serve as a food source for many larger animals, including fish and whales. However, there are still many things we don’t know about them. Below are ten amazing facts about shrimp. 

1. Some Shrimp Eat Dead Scales Off Fish

Reports have shown that the cleaner shrimp eat dead scales and parasites off the skin of living fish. But more than what they eat, how they do it is fascinating. These animals have been found to perform a choreographed dance to entice other fish to come close enough to be fed on or ‘cleaned’ by the shrimp. The size of the other fish usually doesn’t matter, as sometimes they are two times the size of the shrimp. 

2. Shrimp Contain a Cancer-Fighting Mineral

Shrimps are high in selenium, an antioxidant mineral that stimulates enzymes to combat cancer-causing free radicals and inhibit tumor growth.

3. Some Shrimp Can Be Noisy With Their Pincers

Certain shrimp species may produce sounds with their claws. The water may appear quiet, but it may become quite loud beneath the surface when snapping shrimp are present. During WWII, some submarines were known to hide among beds of snapping shrimp to avoid being detected by radar.

4. Shrimp Come In Different Colors

Shrimp habitats are quite diverse, with a vast range of colors, brightness, and designs. Decapod crustaceans, like other invertebrates, have been discovered to have the capacity to change color over short and long periods. In the first case, the change may be in seconds, minutes, or hours, while the second case is connected with phenotypic plasticity and development.

Some shrimp subspecies can change their color to blend in with their environment. Shrimp in tropical and subtropical environments have vibrant colors. However, others are transparent, making it difficult for predators to notice them. In muddy riverbeds, you can typically find shrimp in brown and green colors. 

5. Some Types of Shrimp Dance

Cleaning shrimp make a short dance while waving their white antennae to entice fish. They reside in small crevices or caves on Australia’s coastal reefs, where they serve as what is known as “cleaning stations.” Different kinds of fish come to the area to cleanse themselves of disease-causing parasites, which is something the shrimp eat for free. 

One or more shrimp move towards the possible creature as they arrive, swaying side-to-side in a dance that indicates the shrimp are ready for cleaning. As some fish are more sensitive to moving things, the shrimp’s dance may make them more noticeable to fish looking to be cleaned.

6. Shrimp Don’t Have Fins, but They Still Swim Well 

Shrimp are quite adept swimmers, which may be surprising considering that they do not have fins like fish. By flexing the muscles of their belly and tail, they may propel themselves swiftly. They, however, swim backwards due to their body structure. They can swim forward with their appendages under their tails, but this movement is slower than swimming backwards.

7. Shrimp Are Omnivores

Shrimp eat a large number of foods, which depend on their level or stage of development. They are omnivores and eat any kind of natural food that fits in their mouths.

In the larval stage, they are extremely small and float on the water’s surface. As they have limited mobility and are so small, they feed on other small organisms that drift around with them, primarily algae and plankton.

Grown shrimp are scavengers, roaming on the ocean floor and devouring organic debris for nourishment. This means that their diets are influenced by their location. Plant materials, clams, dead fish, crabs, snails, worms, and other decomposing organic waste found in the ocean are all eaten by wild shrimp. These animals also sift the water around them or across the ocean floor to absorb minute plant and animal materials.

8. There Are Around 3,000 Species of Shrimp

From tropical regions to the Antarctic Ocean, approximately 3,000 separate shrimp species are found worldwide and in every known marine habitat. However, only a small percentage of them are available commercially. They are divided into four categories: white, red, brown, and pink, and each can be one of several species. 

9. Shrimp Sizes Differ Depending on Species

Shrimp aren’t always as small as we might assume. While some shrimp are less than one inch long, other types can reach 12 inches or larger. The tiger shrimp, for example, can be as much as 13 inches long.

10. Shrimp Have Their Hearts in Their Head

The heart of a shrimp is situated in its head. Following the actual anatomy, the heart is in the thorax, next to the head. However, since the head and the thorax are both enclosed by the same exoskeleton, the thorax is sometimes considered part of the head. In the general sense, following the idea that a shrimp is divided into just the head and tail, it can be said that the animal’s heart is on its head.