Principle of Aquaculture (1+1)

Principle

Aquatic weeds can be defined as unwanted and undesirable vegetation that grow profusely in waters. Based on their habitat, the aquatic weeds can be classified into floating, submerged, emergent, marginal, filamentous and algal blooms. The disadvantages of aquatic weeds in ponds include

(i) Interference in culture activities

(ii) Depletion of dissolved oxygen

(iii) Restrict space for movement of fish

(iv) Utilize nutrients

(v) Hinder netting operation

(vi) Restrict light penetration

(vii) Release toxic gases