Grass carp

Description

Grass Carp – Ctenopharyngodon idella | Exotic Freshwater Aquaculture Fish

Grass Carp (Ctenopharyngodon idella) is a large, herbivorous freshwater fish that plays a significant role in aquatic vegetation control and commercial aquaculture systems. Originally native to China and Eastern Asia, it has been introduced to India as part of Exotic Carps, complementing Indian Major Carps like Catla, Rohu, and Mrigal.

Key Characteristics:

• Scientific Name: Ctenopharyngodon idella

• Common Name: Grass Carp

• Origin: Exotic species from East Asia

• Habitat: Freshwater ponds, rivers, tanks, and reservoirs

• Feeding Habit: Strict herbivore – feeds on aquatic vegetation, grass, and weeds.

  Aquaculture Importance:

  Grass Carp is highly popular in polyculture systems due to its compatibility with other carps. It helps reduce unwanted weed growth in fish ponds, thus naturally maintaining water quality and reducing manual weed control costs. It grows quickly and adapts well to diverse climatic and aquatic conditions.

  Growth & Productivity:

  • Capable of growing up to 25–30 kg under ideal conditions

  • Reaches marketable size in 10–12 months

  • Low feed cost due to plant-based diet

  • Ideal for eco-friendly, low-input aquaculture

    Nutritional Benefits:

    Grass Carp provides lean, high-protein meat that is low in fat and rich in vitamins and minerals. Its flesh is white, firm, and widely accepted in Indian and Asian cuisines.