Crayfish (Cambarus sp) | Characteristics, Habitats & Amazing Facts

Name - Crayfish

Scientific Name :  Cambarus sp.

Type : Aquatic Animal 

Age : 20 to 30 years. 

Diet : omnivores as well as detritivores

Physical Characteristics:

Length : 2.5 cm To 18 cm.

Weight : 2.5 kg to 20 kg

Top Speed : 11 mph

Colour : sandy yellow, green, red, or dark brown

Skin Type : thin but tough

Lifespan : 20 to 30 years

Current Population : XXXXXX

Current Population Trend : decreasing

Native : southeastern North America and Pacific Northwest


Main Prey : vegetables like frozen peas, carrots, and even plants like Java moss also eat shrimp, meat, fish, insects that accidentally fall into the tank, sinking pellets, table scrap

Habitat : fresh water like ponds ,rivers, lakes, and streams

Predators : large fish, otters, raccoons, mink, and great blue herons.

Lifestyle : nocturnal 

Favourite Food : decomposing animal matter and decaying vegetation

Amazing Facts

·        They have a lot in common with lobsters. North America is home to more than half of the world’s 500 animals. Although a few species live in brackish or salt water, almost all live in fresh water.

·        The exoskeleton, also known as the body covering, is light but durable. Big, strong pincers are found on the front pair of the five pairs of legs (chelae). The abdomen has five smaller appendages that are mainly used for swimming and circulating water for respiration.

·        They’re most active at night, when they consume snails, insect larvae, worms, and amphibian tadpoles, as well as some vegetation.

·        In the fall, crayfish mate and lay eggs, and in the spring, they reproduce. In five to eight weeks, the eggs attached to the female’s abdomen hatch. For several weeks, the larvae stay on the mother. Depending on the species, sexual maturity can take anything from a few months to several years, and life spans can vary from 1 to 20 years.

·        Crayfish fossils dating back more than 30 million years are uncommon, but fossilised burrows have been discovered in strata dating back to the late Palaeozoic or early Mesozoic. The Parastacidae has the oldest records, which date back 115 million years and are found in Australia.

·        Crayfish are eaten all over the world. Just a small part of a crayfish’s body is consumed, as with other edible crustaceans. Only the tail part is served in most prepared dishes, such as soups, bisques, and étouffées.

·        Crayfish are eaten by ray-finned fish and are widely used as bait, either live or with only the tail meat. Catfish, largemouth bass, smallmouth bass, striped bass, perch, pike, and muskies are all drawn to them. Anglers tend to hook live crayfish between the eyes, piercing through their stiff, pointed beak, which does little harm to them.

·        Crayfish are kept in freshwater aquariums as pets. They prefer shrimp pellets or a variety of vegetables, but they will also consume tropical fish food, daily fish food, algae wafers, and small fish that they can catch with their claws.

·        Crayfish are vulnerable to diseases like crayfish plague as well as environmental stressors like acidification. Crayfish disease, which is caused by the North American, poses a particular threat to them in Europe. When North American species of crayfish were introduced to Europe, this water mould spread.

·        Other research has shown that shipping crayfish to various habitats has resulted in a variety of ecological issues, including the extinction of native organisms.

·        Lobsters, crawdads, mudbugs, and yabbies are some of the local names for crayfish. While there are significant overlaps in the Eastern United States, “crayfish” is more common in the north, while “crawdad” is more common in the central and southwestern areas, and “crawfish” is more common in the south.

·        The study of crayfish is called astacology

·        While some species, such as Procambarus clarkii, can tolerate polluted water, most crayfish cannot. Crayfish eat both live and decomposing animals and plants, as well as detritus.

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1 Comment
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