Relationship between weight and length is expressed by formula:

Correct option is A

Correct Answer: (a) W = aLᵇ
Explanation:
→ The weight–length relationship in fishes follows the power function W = aLᵇ.
→ ‘a’ is the intercept, ‘b’ indicates growth pattern (isometric or allometric).
→ Widely used in fisheries biology for growth assessment.
Information Booster:
→ b ≈ 3 indicates isometric growth.
→ Deviations indicate environmental or nutritional effects.
→ Useful for stock comparison and condition factor estimation.
Additional Information (Other Options): Other formulas are not biologically valid.