Crayfish is a kind of freshwater shrimp. Because of its delicious meat and rich nutrition, it is loved by many people. Because of its unfamiliar living habits, many people want to know, will crayfish drown in the water? Let's get to know it together.
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Crayfish has strong adaptability, and can survive in lakes, rivers, ponds, canals and paddy fields, even in some water bodies where fish are difficult to survive.
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Crayfish has a strong adaptability to dissolved oxygen in water. It can not only climb ashore in an oxygen-deficient environment, but also lie on its side on the water with the help of floating plants or aquatic plants in the water and breathe through its gills to survive.
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Crayfish is an omnivore. In terms of eating habits, crayfish prefer to eat mud at the bottom of the river, and they like to eat dead small fish or other aquatic creatures. It mainly eats plants, and small fish, shrimp, plankton, benthos and algae can all be used as its food.
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Crayfish has a wide adaptability and a wide suitable growth temperature, and can grow and develop normally when the water temperature is 10-30℃. It can also resist high temperature and cold, can tolerate high temperature above 40℃, and can also survive the winter safely when the temperature is below-14℃.
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Crayfish like to dig holes during the breeding season. The cave is located about 20 cm above the water surface of the pond, with a depth of 60 cm to 1.2 m. There is a small amount of water in it to keep the humidity, and the hole is generally sealed with a mud cap to reduce the water loss. In the summer night or after the rainstorm, it has the habit of climbing ashore, and can cross the dam and enter other water bodies.
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