Correct option is B
Correct Answer: (b) Volumetric
Explanation:
→ Volumetric method measures the volume occupied by each food item, making it suitable for herbivorous fishes where plant matter is bulky and amorphous.
→ Provides more accurate dietary assessment in plant-eating species.
Information Booster:
→ Useful for species like carp and tilapia.
→ Helps understand feeding ecology and habitat preference.
→ More reliable than numerical methods for soft, fragmentary food items.
Additional Information (Other Options): Numerical methods underestimate herbivore diet components.