Macrobrachium Rosenbergii Shrimp Explained: Material Grades, Specifications, and Industrial Implementation

Types of Macrobrachium rosenbergii Shrimp

Macrobrachium rosenbergii, commonly known as the giant freshwater prawn, is one of the most commercially important freshwater crustaceans in aquaculture. While there is only one true species, various morphological and color variations have led to the recognition of different types based on appearance, habitat preference, and regional distribution. These variants are often named for their distinctive coloration or geographic origin and are valued for both farming and ornamental purposes.

The following are the primary recognized types and color morphs of Macrobrachium rosenbergii, each with unique characteristics in terms of size, color, behavior, and suitability for aquaculture or aquarium use.

Giant Freshwater Prawn

The standard and most widespread form of M. rosenbergii, prized for its impressive size and fast growth in aquaculture.

Advantages

• Can grow up to 30 cm (12 inches) in length
• Highly suitable for commercial farming
• Fast growth rate under optimal conditions
• Primary source of freshwater prawn production globally

Limitations

• Aggressive behavior, especially among males
• Requires careful management in aquaculture settings
• Sensitive to water quality fluctuations

Best for: Aquaculture, food production, research

Bamboo Shrimp (Macrobrachium bamboo)

Often confused with M. rosenbergii, but actually a different species. However, some regional populations of M. rosenbergii exhibit similar striped patterns, leading to the misnomer.

Advantages

• Camouflaged appearance aids in predator avoidance
• Striped pattern resembles bamboo or riverbed textures
• Adaptable to various freshwater environments

Limitations

• Commonly misidentified as M. rosenbergii
• Not typically farmed commercially
• Less growth potential than true giant prawns

Best for: Ornamental use, educational displays, biodiversity studies

Blue Freshwater Prawn

A striking color morph characterized by a vivid blue body and greenish-blue claws, highly sought after in the aquarium trade.

Advantages

• Eye-catching blue coloration enhances visual appeal
• Popular in ornamental aquaculture and display tanks
• Retains the hardiness of the species

Limitations

• Rare in wild populations
• Color may fade if water conditions are poor
• May be more expensive due to demand

Best for: Aquariums, specialty breeding, collectors

Rainbow Freshwater Prawn

A vibrant variant displaying iridescent hues of blue, green, yellow, and red—earning its name from its colorful appearance.

Advantages

• Extremely colorful and visually appealing
• High demand in the ornamental fish and shrimp market
• Can be selectively bred for enhanced coloration

Limitations

• Color intensity depends on diet and water quality
• Less common in commercial food production
• May require specialized care in captivity

Best for: Ornamental aquariums, breeding programs, exhibitions

Indian Freshwater Prawn

A regional variant commonly found in South Asia, typically brown or green with reddish or purple markings.

Advantages

• Well-adapted to tropical river systems
• Important in local fisheries and small-scale farming
• Natural camouflage provides survival advantage

Limitations

• Less visually striking than color morphs
• Growth may be slower than farmed strains
• Limited availability outside native regions

Best for: Regional aquaculture, traditional fisheries, ecological studies

Ghost Freshwater Shrimp

A translucent or pale variant with a see-through body, giving it a "ghostly" appearance. Often confused with other ghost shrimp species.

Advantages

• Transparency provides excellent camouflage
• Fascinating to observe due to visible internal organs
• Popular in educational and display aquariums

Limitations

• Not a true M. rosenbergii color morph—often mislabeled
• Smaller in size compared to standard variants
• Less suitable for food production

Best for: Ornamental tanks, schools, public aquariums

Scampi

Often used as a culinary term, "scampi" refers to smaller to medium-sized prawns, sometimes including juvenile M. rosenbergii.

Advantages

• Delicate flavor and tender texture
• Versatile in cooking (grilled, sautéed, boiled)
• Found in both freshwater and brackish environments

Limitations

• "Scampi" is not a biological classification
• May refer to various prawn species, causing confusion
• Smaller size limits meat yield

Best for: Culinary use, seafood markets, restaurants

Type	Coloration	Size	Primary Use	Notes
Giant Freshwater Prawn	Brownish-green with bluish claws	Up to 30 cm	Aquaculture & food	Main commercial variety
Bamboo Shrimp	Tan with dark stripes	15–20 cm	Ornamental	Often misidentified species
Blue Freshwater Prawn	Blue body, green-blue claws	20–25 cm	Aquarium trade	Rare color morph
Rainbow Freshwater Prawn	Iridescent blue, green, red	20–28 cm	Ornamental breeding	Highly prized for color
Indian Freshwater Prawn	Brown/green with purple markings	18–25 cm	Regional farming	Native to South Asia
Ghost Freshwater Shrimp	Transparent/pale	10–15 cm	Educational displays	Often not true M. rosenbergii
Scampi	Grey, green, brown	10–20 cm	Culinary	Culinary term, not a species

Expert Tip: When identifying Macrobrachium rosenbergii variants, focus on claw structure and body proportions—true M. rosenbergii have long, slender claws with a distinct kink in the larger claw of males. Color alone is not a reliable identifier due to environmental and dietary influences.

Note on Nomenclature: Some names like "Bamboo Shrimp" and "Ghost Shrimp" refer to entirely different species (Atyopsis spp. and Palaemonetes spp., respectively). Always verify scientific classification when sourcing for farming or aquariums to avoid confusion.

How to Choose Macrobrachium Rosenbergii Shrimp: A Comprehensive Buyer’s Guide

Selecting high-quality Macrobrachium rosenbergii, commonly known as the giant freshwater prawn, is essential for ensuring optimal taste, texture, and value—whether for commercial resale, aquaculture, or culinary use. This guide outlines the key factors buyers should evaluate when purchasing these prawns, from appearance and size to sustainability and pricing.

Key Selection Criteria for Macrobrachium Rosenbergii

Product Quality

The overall health and physical condition of the prawns are primary indicators of quality. Healthy specimens should exhibit no visible signs of disease, such as lesions, discoloration, or fungal growth. Their exoskeleton should be firm, intact, and free from cracks or soft spots, which may indicate molting stress or poor nutrition.

The flesh beneath the shell should appear translucent and clear, not cloudy or milky—cloudiness often signals early spoilage or bacterial contamination. Active movement in live prawns is another positive sign of vitality and freshness.

Size and Growth Potential

M. rosenbergii can grow up to 30 cm in length, with males typically larger than females. Size significantly influences market value and meat yield. Larger prawns are often preferred in premium markets due to their firmer texture and higher visual appeal.

For aquaculture or breeding purposes, selecting prawns within a consistent size range ensures uniform growth and easier management. Buyers should also consider target markets—restaurants may favor jumbo sizes, while retail consumers might prefer medium-sized, more affordable options.

Origin and Sustainability

The geographical origin of the prawns affects flavor, coloration, and environmental impact. For example, prawns farmed in Southeast Asia—particularly Thailand, Vietnam, and Indonesia—often have distinct taste profiles due to local water conditions and feed practices. Those from Indian subcontinent farms may differ slightly in texture and pigmentation.

Sustainability is increasingly important to eco-conscious consumers. Buyers should prioritize suppliers who follow responsible aquaculture practices, such as avoiding mangrove destruction, minimizing antibiotic use, and maintaining water quality. Certifications like ASC (Aquaculture Stewardship Council) or Naturland can verify sustainable sourcing.

Freshness and Handling

Freshness directly impacts taste, shelf life, and safety. When purchasing live prawns, look for active, responsive individuals with strong tail flicks and intact antennae. Avoid sluggish or floating specimens, which may be stressed or dying.

For frozen prawns, ensure they have been individually quick-frozen (IQF) shortly after harvest to preserve texture and prevent ice crystal formation. Check packaging for frost, ice clumps, or discoloration—signs of freezer burn or repeated thawing and refreezing, which degrade quality.

Stock and Seasonal Availability

Consistent supply is crucial for businesses relying on regular deliveries. M. rosenbergii availability can fluctuate seasonally due to breeding cycles, water temperature changes, or regional harvest schedules. Tropical regions often have year-round production, while temperate farms may experience reduced output in colder months.

Buyers should establish relationships with reliable suppliers who can provide stable inventory. Inquiring about hatchery schedules and grow-out timelines helps anticipate availability and plan procurement accordingly.

Pricing and Value

Price varies based on size, origin, freshness, and volume. Comparing quotes from multiple suppliers helps identify competitive rates. Bulk purchases often come with discounts, especially for long-term contracts.

However, buyers must account for hidden costs such as shipping, handling, customs fees (for imports), and cold-chain logistics. A slightly higher upfront price from a reputable supplier may offer better long-term value through reduced spoilage, consistent quality, and compliance with food safety standards.

Selection Factor	Why It Matters	Pro Tips for Buyers
Product Quality	Ensures safety, taste, and consumer satisfaction	Inspect for clear eyes, intact shells, and firm flesh; avoid prawns with foul odor or slimy texture
Size	Affects yield, cooking suitability, and market price	Standard size grades: Small (15–20g), Medium (20–30g), Large (30–40g), Jumbo (>40g)
Origin	Influences flavor, sustainability, and traceability	Prefer certified farms with transparent sourcing and environmental responsibility
Freshness	Impacts shelf life and culinary performance	Live prawns should be active; frozen ones should be sealed, frost-free, and properly labeled
Availability	Ensures business continuity and supply chain reliability	Ask suppliers about production cycles and backup stock options
Price	Determines profitability and budgeting	Negotiate volume discounts and confirm all-inclusive pricing to avoid surprises

Best Practices for Purchasing Macrobrachium Rosenbergii

Verify Supplier Credentials: Choose vendors with a proven track record in aquaculture, proper hygiene certifications, and adherence to local and international food safety regulations.

Request Product Samples: Before placing large orders, obtain samples to assess quality, freshness, and consistency firsthand.

Check Packaging and Labeling: Frozen prawns should be vacuum-sealed or IQF-packed with clear labels indicating species, origin, harvest date, and storage instructions.

Monitor Cold Chain Integrity: Ensure that live or frozen prawns are transported under controlled temperatures to prevent spoilage.

Evaluate Long-Term Partnership Potential: Reliable suppliers who communicate openly and adapt to your needs can become valuable partners in your supply chain.

Important: Always verify the species to avoid mislabeling—Macrobrachium rosenbergii is sometimes confused with other prawn species. Improper storage or delayed processing can lead to rapid quality degradation. Prioritize freshness, traceability, and sustainability to meet consumer expectations and regulatory standards.

How to Use Macrobrachium Rosenbergii Shrimp

Macrobrachium rosenbergii, commonly known as the giant freshwater prawn, is a highly versatile species with applications spanning culinary, agricultural, scientific, and commercial domains. Its rapid growth, nutritional value, and adaptability make it a valuable resource across multiple industries. Below is a comprehensive overview of the primary uses of this remarkable crustacean.

🍽️ Food – A Culinary Delicacy

Freshwater prawns are prized in global cuisines for their firm, sweet meat and rich umami flavor. They are especially prominent in Southeast Asian, South Asian, and Pacific Rim cooking traditions. Their versatility allows for a wide range of preparation methods, including grilling, steaming, stir-frying, boiling, and deep-frying.

Popular dishes featuring M. rosenbergii include Thai Tom Yum Goong, Malaysian Butter Prawn, Indian Chingri Malai Curry, and Indonesian Pesmol Udang. Their large size makes them ideal for presentation dishes, while their mild flavor pairs well with bold spices and sauces.

• High in protein, low in fat, and rich in essential minerals like selenium, phosphorus, and iodine
• Gluten-free and keto-friendly, suitable for various dietary needs
• Available fresh, frozen, or pre-cooked for convenience in both home and commercial kitchens

Chef’s Tip: Marinate prawns briefly in citrus or vinegar to enhance tenderness and flavor absorption.

🐟 Prawn Farming – Sustainable Aquaculture

Macrobrachium rosenbergii is one of the most widely farmed freshwater prawn species globally, thanks to its fast growth rate, high market value, and ability to thrive in diverse environments. It is commonly raised in integrated aquaculture systems, including earthen ponds, recirculating tanks, and rice-prawn co-culture setups.

Farming operations range from small-scale rural enterprises to large commercial facilities, particularly in countries like Thailand, Vietnam, India, and Bangladesh. The species reaches market size (30–50g) in 6–8 months under optimal conditions.

• Tolerates a wide range of water temperatures (24–32°C) and salinity levels
• Can be polycultured with fish like tilapia or carp to maximize yield
• Requires structured habitats (e.g., bamboo poles, PVC pipes) to reduce cannibalism

Sustainability Note: Closed-loop systems with biofloc technology minimize environmental impact and disease risk.

🐾 Pet Food – Nutrient-Rich Protein Source

Due to their high protein content and palatability, M. rosenbergii prawns are increasingly used in premium pet food formulations. They serve as a high-quality animal protein source in both wet and dry diets for dogs, cats, and exotic pets like reptiles and birds.

Dried prawn meal or whole prawns are incorporated into kibble, treats, and raw diets. Their natural astaxanthin content enhances coat color in pets, while glucosamine supports joint health.

• Highly digestible and hypoallergenic compared to some land-based proteins
• Rich in omega-3 fatty acids, supporting skin, coat, and cognitive health
• Used in specialty diets for senior pets and those with sensitivities

Pro Tip: Look for human-grade prawn ingredients in pet food for maximum quality assurance.

🎣 Fish Bait – Effective Angling Tool

Fresh or frozen M. rosenbergii prawns are excellent natural bait for both freshwater and saltwater fishing. Their strong scent, natural movement, and durability on the hook attract a wide range of predatory fish, including bass, catfish, snapper, and barramundi.

Anglers often use whole prawns or cut them into pieces depending on target species. Their exoskeleton helps them stay intact longer than softer baits, even in strong currents.

• Highly effective in estuaries, rivers, and coastal waters
• Can be stored frozen and used as needed
• Natural chitin content may enhance attraction due to subtle water vibrations

Expert Advice: Pair prawn bait with a slow retrieve to mimic natural swimming motion.

🌿 Traditional Medicine – Cultural Healing Practices

In traditional medicine systems across Southeast Asia and parts of South Asia, freshwater prawns are believed to possess restorative and nourishing properties. They are often included in post-illness or postpartum recovery soups and broths.

The prawns are thought to boost energy, improve circulation, and support tissue regeneration. While scientific validation is limited, their high nutrient density—including zinc, protein, and antioxidants—may contribute to perceived health benefits.

• Commonly used in herbal soups with ginger, garlic, and goji berries
• Believed to warm the body and improve vitality in traditional Chinese medicine
• Often recommended for new mothers to aid recovery and lactation

Cultural Insight: In some regions, prawns are avoided during certain illnesses due to "heaty" properties in TCM theory.

🔬 Biological Research – Model Organism

Macrobrachium rosenbergii is a key model organism in biological and environmental research. Its complex social hierarchy, rapid development, and sensitivity to environmental changes make it ideal for studying behavior, endocrinology, genetics, and ecotoxicology.

Researchers use this species to investigate topics such as molting cycles, sex differentiation, pheromone communication, and the impacts of pollutants like heavy metals and microplastics on aquatic life.

• Used in aquaculture research to improve breeding and disease resistance
• Helps in understanding crustacean neurobiology and hormone regulation
• Valuable for assessing water quality and ecosystem health in freshwater habitats

Research Highlight: Genomic studies on M. rosenbergii are advancing selective breeding programs for improved yield and resilience.

Professional Insight: When sourcing Macrobrachium rosenbergii, prioritize sustainable and traceable suppliers—especially for food, pet, and aquaculture use. Look for certifications such as ASC (Aquaculture Stewardship Council) or Best Aquaculture Practices (BAP) to ensure ethical and environmentally responsible production.

Use Case	Primary Benefit	Common Applications	Sustainability Consideration
Human Consumption	High nutritional value, gourmet appeal	Stir-fries, curries, grilling, soups	Choose certified sustainable farms
Aquaculture Farming	Fast growth, high market demand	Ponds, tanks, integrated systems	Use biofloc or RAS to reduce pollution
Pet Nutrition	High digestibility, rich in omega-3s	Dog/cat food, reptile diets	Ensure byproduct sourcing is ethical
Fishing Bait	Strong attraction, durable	Freshwater and saltwater angling	Use responsibly to avoid overharvesting
Traditional Medicine	Cultural significance, nutrient density	Recovery soups, tonics	Limited impact due to small-scale use
Scientific Research	Model for development and ecology	Genetics, toxicology, behavior studies	Lab-reared specimens minimize wild impact

Key Considerations for Buyers

• Storage: Keep fresh prawns at 0–4°C; freeze for long-term storage to preserve quality
• Handling: Use gloves when processing to avoid cross-contamination and shell injuries
• Allergens: Clearly label products containing shellfish due to common food allergy risks
• Traceability: Opt for suppliers with transparent sourcing and farming practices
• Versatility: One species, multiple markets—explore cross-industry opportunities for maximum ROI

Benefits of Macrobrachium Rosenbergii (Giant Freshwater Prawn)

Macrobrachium rosenbergii, commonly known as the Giant Freshwater Prawn, is one of the most commercially important freshwater shrimp species in aquaculture. Valued for its size, flavor, and nutritional profile, this prawn offers a wide range of benefits to consumers, farmers, and local economies. Below is a comprehensive overview of the key advantages of cultivating and consuming M. rosenbergii.

Did You Know? Macrobrachium rosenbergii is native to the Indo-Pacific region and is the largest freshwater prawn in the world, with males reaching up to 32 cm in length and weighing over 600 grams under optimal conditions.

1. Exceptional Nutritional Value

This prawn is a powerhouse of nutrition, making it an excellent addition to a balanced diet. It is particularly prized for its:

• High-quality lean protein: Provides approximately 20–25g of protein per 100g serving, ideal for muscle development and repair.
• Low calorie and fat content: With only about 85–95 calories and less than 1.5g of fat per 100g, it's a satiating yet low-energy food choice.
• Heart-healthy profile: Naturally low in saturated fat and cholesterol, supporting cardiovascular wellness.
• Rich in omega-3 fatty acids: Contains beneficial EPA and DHA, which support brain function, reduce inflammation, and improve heart health.
• Essential vitamins and minerals: Excellent source of selenium, vitamin B12, phosphorus, and iodine—nutrients vital for metabolism, immune function, and thyroid health.

2. Rich, Versatile Flavor Profile

M. rosenbergii is celebrated in culinary circles for its delicate sweetness and firm, succulent texture. Its flavor profile makes it a favorite across global cuisines, particularly in:

• Southeast Asian dishes: Featured in Thai curries, Malaysian laksa, Vietnamese soups, and Indonesian grilled prawns (udang bakar).
• Mediterranean and Latin cooking: Used in paella, risotto, ceviche, and garlic butter preparations.
• Grilling and frying: Holds up well to high-heat cooking methods, developing a rich, caramelized exterior while remaining tender inside.
• Flavor absorption: Pairs exceptionally well with spices, herbs, citrus, and sauces, making it a versatile ingredient for creative cooking.

3. Fast Growth and High Market Yield

For aquaculture producers, M. rosenbergii stands out due to its impressive growth characteristics:

• Reaches market size (25–40g) in just 6 to 8 months under optimal farming conditions.
• Exhibits rapid growth rates compared to many marine shrimp species, reducing time-to-harvest.
• Large adult size results in a high edible yield per unit, improving profitability for farmers.
• Commands premium prices in both domestic and international markets due to its size and quality.
• Ideal for intensive and semi-intensive farming systems, allowing for scalable production.

4. Environmentally Sustainable Aquaculture Option

Unlike many marine shrimp species that require brackish water and have been linked to mangrove destruction, M. rosenbergii offers a more sustainable alternative:

• Farmed in freshwater ponds or recirculating aquaculture systems (RAS), minimizing impact on coastal ecosystems.
• Reduces pressure on wild shrimp populations and marine biodiversity.
• Adaptable to a wide range of water temperatures (24–30°C) and pH levels, making it suitable for farming in diverse climates.
• Successfully cultivated in countries like Thailand, India, Bangladesh, Vietnam, and parts of Africa, promoting food security and reducing import dependency.
• Can be integrated into polyculture systems with fish or rice, enhancing resource efficiency and farm resilience.

5. Economic Empowerment and Community Development

The cultivation of M. rosenbergii plays a vital role in rural economies, particularly in developing nations:

• Creates employment opportunities in hatcheries, grow-out farms, processing units, and distribution networks.
• Supports smallholder farmers and cooperatives, enabling income generation in rural and peri-urban areas.
• Contributes to export earnings in countries like India and Thailand, where freshwater prawns are in high global demand.
• Promotes gender-inclusive livelihoods, with women often involved in post-harvest handling and processing.
• Encourages investment in local infrastructure, training, and sustainable farming practices.

Benefit Category	Key Advantages	Target Stakeholders	Global Relevance
Nutritional	High protein, low fat, rich in omega-3s and micronutrients	Health-conscious consumers, athletes, elderly	Worldwide
Culinary	Sweet flavor, firm texture, versatile in cooking	Chefs, restaurants, home cooks	Asia, Europe, North America
Aquaculture	Fast growth, high yield, scalable farming	Farmers, agribusinesses, hatcheries	Tropical and subtropical regions
Environmental	Freshwater farming, low ecosystem impact	Conservationists, policymakers, NGOs	Global sustainability initiatives
Economic	Job creation, rural development, export potential	Local communities, governments, investors	Developing economies

Pro Tip: When purchasing M. rosenbergii, look for sustainably certified products (e.g., ASC or Best Aquaculture Practices) to support responsible farming and ensure product quality.

Conclusion

Macrobrachium rosenbergii is more than just a premium seafood choice—it represents a convergence of nutrition, sustainability, and economic opportunity. Whether you're a consumer seeking a healthy protein source, a chef exploring gourmet ingredients, or a farmer evaluating profitable aquaculture species, the Giant Freshwater Prawn offers compelling benefits across the board. As global demand for sustainable seafood continues to rise, M. rosenbergii is poised to play an increasingly important role in food systems worldwide.

Frequently Asked Questions About Macrobrachium rosenbergii Shrimp

Q1: How should buyers store Macrobrachium rosenbergii shrimp to keep them fresh for long?

Proper storage is crucial to maintaining the quality and viability of Macrobrachium rosenbergii, also known as giant freshwater prawns. The method varies depending on whether the shrimp are live or frozen:

• For Live Shrimp: Place them in a breathable container lined with wet seaweed, damp burlap, or a moist cloth towel. This setup helps retain moisture while allowing adequate airflow, which is essential for their respiration. Keep the container in a cool, shaded area with temperatures between 10–15°C (50–59°F). Avoid direct sunlight and overcrowding, as both can increase stress and mortality.
• For Frozen Shrimp: Store at or below -18°C (0°F) in airtight packaging to prevent freezer burn and inhibit bacterial growth. Ensure the freezer maintains a consistent temperature and avoid frequent thawing and refreezing cycles.

Proper handling during transport and storage significantly extends shelf life and preserves texture and flavor.

Q2: How long can live M. rosenbergii shrimp be kept fresh when stored properly?

When stored under optimal conditions, live Macrobrachium rosenbergii can remain viable for 1 to 2 days. However, for the best quality, taste, and texture, it is recommended to use them within 24 hours of harvest or purchase.

In contrast, frozen prawns maintain their quality for much longer:

• Frozen Storage: Properly packaged and stored at -18°C, frozen M. rosenbergii can retain freshness for up to 6–8 months. While safe to eat beyond this period, flavor and texture may degrade over time.
• Thawing Tip: Thaw frozen prawns gradually in the refrigerator overnight or under cold running water to preserve moisture and prevent bacterial contamination.

Q3: What is the ideal method for cooking Macrobrachium rosenbergii shrimp?

Macrobrachium rosenbergii is prized for its sweet, delicate flavor and firm texture, making it highly versatile in the kitchen. It can be prepared using various cooking techniques:

• Boiling: Ideal for preserving natural flavor. Add to gently boiling salted water or broth for 2–3 minutes if small (under 20g), or 4–5 minutes if large. Remove immediately to avoid overcooking.
• Grilling: Enhances smoky flavor. Marinate briefly and grill over medium heat for 3–4 minutes per side until opaque.
• Sautéing: Cook in butter or oil over medium-high heat for 2–3 minutes per side for a golden exterior and tender interior.
• Curries & Soups: Add towards the end of cooking to prevent rubberiness. Simmer just until the flesh turns opaque.

Pro Tip: Do not overcook—freshwater prawns become tough and chewy if exposed to heat for too long. Always cook until the flesh is pearly white and firm to the touch.

Q4: Can buyers use M. rosenbergii shrimp in aquaponics systems?

Yes, Macrobrachium rosenbergii is increasingly being integrated into aquaponics systems due to its beneficial ecological role and commercial value.

Key advantages include:

• Algae Control: Prawns naturally graze on algae and biofilm, helping to keep tanks and grow beds clean.
• Nutrient Cycling: Their waste provides a rich source of nitrogen and other nutrients that support plant growth, reducing the need for external fertilizers.
• Biodiversity: Adds variety to aquaponic ecosystems, especially in larger, well-oxygenated systems.
• Dual Harvest: Enables simultaneous production of high-value shrimp and vegetables, improving system profitability.

Note: These prawns are omnivorous and can be aggressive, especially as they grow. They may prey on smaller fish or compete for space, so system design and stocking density must be carefully managed.

Q5: Are the freshwater prawns suitable for prawn farming?

Yes, Macrobrachium rosenbergii is one of the most widely farmed freshwater prawn species globally due to its rapid growth, large size, and high market demand.

Key reasons for its popularity in aquaculture include:

Factor	Benefit
Market Demand	High consumer preference in Asia, Europe, and North America for its taste and size.
Growth Rate	Reaches market size (30–50g) in 6–8 months under optimal conditions.
Commercial Value	Premium pricing compared to many other farmed crustaceans.
Adaptability	Can be raised in ponds, tanks, and recirculating aquaculture systems (RAS).

However, successful farming requires careful attention to:

• Water Quality: Maintain stable pH (7.0–8.5), dissolved oxygen (>5 mg/L), and low ammonia/nitrite levels.
• Temperature: Optimal range is 28–32°C; growth slows significantly below 20°C.
• Stocking Density: Overcrowding leads to stress, cannibalism, and disease.
• Biosecurity: Prevent introduction of pathogens through quarantine and clean water sources.

With proper management, M. rosenbergii farming can be a sustainable and profitable venture for both small-scale and commercial producers.