How do you identify macrobrachium Rosenbergii?

How do you identify macrobrachium Rosenbergii?

IDENTIFYING MACROBRACHIUM ROSENBERGII FROM OTHER FRESHWATER PRAWN…

1. it has a very long rostrum, with 11-14 dorsal teeth and 8-10 ventral teeth (the ventral characteristics are especially important);
2. the tip of its telson reaches distinctly beyond the posterior spines of the telson;

How many phases exist in life cycle of macrobrachium Rosenbergii?

There are four distinct phases in the life cycle of the freshwater prawn, namely eggs, larvae, postlarvae (PL) and adults.

What is the meaning of prawn culture?

A freshwater prawn farm is an aquaculture business designed to raise and produce freshwater prawns or shrimp for human consumption. Freshwater prawn farming shares many characteristics with, and many of the same problems as, marine shrimp farming.

What is the scientific name of prawn?

Dendrobranchiata
Prawns/Scientific names

What do macrobrachium Rosenbergii eat?

Larvae mostly consume zooplankton (mainly minute crustaceans), very small worms, and larval stages of other crustaceans. Postlarvae and adults are omnivorous, eating algae, aquatic plants, molluscs, aquatic insects, worms, and other crustaceans.

How long do macrobrachium Rosenbergii live?

But even the largest of all the freshwater shrimp species, the long-armed shrimp Macrobrachium rosenbergii, which grows to a good 50 cm long including the chelipeds (claws), lives for only 18 months in the wild.

Why prawn culture is important?

In India, where the per-capita intake of meat and milk is poor, fish and prawns play a vital role in supplementing and balancing people’s diets. About nine of the 39 species of the freshwater prawn genus (Macrobrachium) in India’s rivers are also considered commercially important.

What are the types of prawn culture?

Species of Prawns for culture These two species are, Macrobrachium rosenbergii. Macrobrachium malcolmsonii.

What are the excretory structures in prawns?

The main excretory organs of prawn are paired green glands. They are located within the second antennae which are the second pair of appendages, attached to the anterior part of the body. Each green gland consists of on endsac, labyrinth and a bladder.

Is Prawn a fish scientifically?

Prawn is not fish.

Are freshwater prawns aggressive?

Unlike the small species of shrimp available in the hobby, freshwater prawns grow much larger, are more aggressive, and can become the subject of an interesting dedicated setup.

What is the largest freshwater shrimp?

Macrobrachium rosenbergii
But even the largest of all the freshwater shrimp species, the long-armed shrimp Macrobrachium rosenbergii, which grows to a good 50 cm long including the chelipeds (claws), lives for only 18 months in the wild.