Freshwater aquaculture

Practical 3 - Weed fish and predatory fish

Introduction

• Undesirable in culture systems
• Small in size and uneconomical
• Compete with food, space and DO with cultivable species
• Spawn in summer and proliferate becoming abundant in monsoon
• Have high fecundity and hardy
• Need to be eradicated to enhance production of desirable species

Weed fish mostly belong to orders cypriniformes and cyprinodontiformes

Cypriniformes

• Family Cyprinidae
• Puntius sp
• Rasbora daniconius
• Garra lamta
• Danio equipinnatus
• Family: Anabantidae
• Macropodus sp.

Order: Cyprinodontiformes

• Aplocheilus lineatus
• Ambasis sp.