<p>This study examined length-weight relationships and condition factors of the endemic dwarf snakehead <i>Channa lipor</i> from its type locality in Meghalaya, India. Seventy-six specimens were collected using non-invasive hand netting from the Umraling River during a twelve-month survey (May 2019–April 2020). Morphometric measurements were recorded using digital instruments, and data analysis employed logarithmic transformation and linear regression modeling. Specimens ranged 4.9–11.6&#xa0;cm in total length and 1.09–13.39&#xa0;g in weight. Analysis revealed negative allometric growth (W = 0.011233L<sup>2.920</sup>, r<sup>2</sup> = 0.962, <i>p</i> &lt; 0.001). Mean condition factors were: Fulton’s K = 0.956 ± 0.110, relative Kn = 1.007 ± 0.113, and modified Km = 1.131 ± 0.127. Specimens in the 6–8&#xa0;cm size class exhibited optimal condition values, indicating healthy population status in this hill stream environment.</p>

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Length-Weight Relationship and Condition Factor of Dwarf Snakehead Channa lipor from Umraling River, Meghalaya, India

  • S. Gojendro Singh,
  • Chandan Debnath

摘要

This study examined length-weight relationships and condition factors of the endemic dwarf snakehead Channa lipor from its type locality in Meghalaya, India. Seventy-six specimens were collected using non-invasive hand netting from the Umraling River during a twelve-month survey (May 2019–April 2020). Morphometric measurements were recorded using digital instruments, and data analysis employed logarithmic transformation and linear regression modeling. Specimens ranged 4.9–11.6 cm in total length and 1.09–13.39 g in weight. Analysis revealed negative allometric growth (W = 0.011233L2.920, r2 = 0.962, p < 0.001). Mean condition factors were: Fulton’s K = 0.956 ± 0.110, relative Kn = 1.007 ± 0.113, and modified Km = 1.131 ± 0.127. Specimens in the 6–8 cm size class exhibited optimal condition values, indicating healthy population status in this hill stream environment.