Q.91
Fisheries Resource Management- ICAR JRF/SRF 2024
MCQ (Single Correct) +4 −1
Iflarger fish in a sample have increased more in height or weight, than in length, then

which of the following is true for b of
the length-weight relationship

  • Allometric Growth in Length-Weight Relationship:
  • The relationship between body weight ($W$) and total length ($L$) in fishes is mathematically expressed as:
$$W = a L^b$$
  • Exponent $b$ Interpretations:
  • $b = 3$ (Isometric Growth): Fish maintains an identical geometric shape and relative body proportions as it grows.
  • $b \lt 3$ (Negative Allometric Growth): Fish becomes relatively more slender or thinner as it increases in length.
  • $b \gt 3$ (Positive Allometric Growth): Fish increases more rapidly in height, body depth, or girth/weight relative to length, becoming plumper and stouter.
  • Correct Option: Option 3 (b>3).
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