The world's largest shrimp

1. The largest sea prawn in the world - American crayfish

American crayfish is also known as Boston lobster. Distributed on the North American coast of the Atlantic Ocean, Canada, Newfoundland, Labrador, Maine and Massachusetts in the United States, the largest American crayfish was caught off the coast of Nova Scotia, Canada in 1997, weighing 20.14 kg. It is 1.06 meters long. American crayfish mainly feed on fish and shellfish.

Life Habits of American Crayfish

American crayfish is normally brown-green and olive green, but also reddish-brown and black, and blue and yellow are rare. Unlike Asian lobsters, the first step is a pair of large claws, with smooth surfaces and thinner tentacles.

It likes to live in shallow seas and gravel holes. It feeds on small fish, shellfish, and crabs. Its natural enemies are other lobsters and flatfish.

2. Macrobrachium rosenbergii, the largest freshwater shrimp in the world

Macrobrachium rosenbergii is a freshwater long arm prawn, also known as Macrobrachium rosenbergii, giant head shrimp, and swamp blue shrimp. It is one of the largest freshwater shrimps in the world. Macrobrachium rosenbergii is widely distributed, and its origin is India, Vietnam, Thailand, Myanmar, Malaysia, etc.

Habitat of Macrobrachium rosenbergii

Macrobrachium rosenbergii lives in fresh water from juveniles to adults. Mature broodstock mate and lay eggs in fresh water, larvae in salt water, and larvae develop in salt water. Macrobrachium rosenbergii has high requirements for dissolved oxygen content in water and is not resistant to fertilized water. Generally, the dissolved oxygen content is required to be above 5 mg/L. Change the water, and keep the transparency of the water between 35 and 40 cm.

Macrobrachium rosenbergii is huge in size, and the adult body length is mostly within 25 centimeters, and the darker the water, the larger its size. At present, the largest known Macrobrachium rosenbergii is 110 cm long and weighs 600 grams.