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<p>This study reports the length–weight relationships (LWRs) and relative condition factors (Kn) of 15 species of nemipterid fishes (Family: Nemipteridae) collected from two major fish landing centres (Nagapattinam fishing harbour and Cuddalore fishing harbour) along the southern Coromandel Coast of India. A total of 3321 individuals were sampled on a monthly basis from commercial trawl fisheries operating between October 2023 and September 2024. Notably, five new LWR records have been established for <i>Nemipterus virgatus</i>, <i>N. marginatus</i>, <i>N. furcosus</i>, <i>Parascolopsis eriomma</i>, and <i>P. inermis</i>, which had not previously been documented along the Indian coast. The estimated growth coefficient (b) values among the 15 species showed significant variation (<i>P</i> &lt; 0.005) from the expected isometric value of 3, ranging from 2.7355 in <i>N. peronii</i> to 3.3694 in <i>N. randalli</i>. This pattern indicates that most of the studied species display allometric growth. The coefficient of determination (r²) values ranged from 0.8902 (<i>N. randalli</i>) to 0.9915 (<i>Scolopsis vosmeri</i>), with linear regression analyses of length and weight showing high statistical significance (<i>P</i> &lt; 0.001). The Kn values were generally close to or above one, reflecting favourable growth conditions, except in <i>N. marginatus</i> (0.8991) and <i>N. nematophorus</i> (0.9497), which recorded lower condition factors. Overall, these findings provide essential insights into the population health, ecology, and growth dynamics of nemipterid fishes, and they contribute valuable baseline information for fisheries biology, stock assessment, and sustainable management of these resources.</p>

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Exploring the Length-Weight Relationships and Well-being of 15 Commercially Important Threadfin Breams (Family: Nemipteridae) From the Southeast Coromandel Coast, Tamil Nadu, India

  • 期刊论文

  • 发表日期：

    2026年1月13日

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  • Sasikumar. R.G,
  • Santhoshkumar. S,
  • Pavinkumar. P,
  • Paplin Prince. B,
  • Joyson Paul. J,
  • Sharumathi. M,
  • Nandhakumar. M

摘要

This study reports the length–weight relationships (LWRs) and relative condition factors (Kn) of 15 species of nemipterid fishes (Family: Nemipteridae) collected from two major fish landing centres (Nagapattinam fishing harbour and Cuddalore fishing harbour) along the southern Coromandel Coast of India. A total of 3321 individuals were sampled on a monthly basis from commercial trawl fisheries operating between October 2023 and September 2024. Notably, five new LWR records have been established for Nemipterus virgatus, N. marginatus, N. furcosus, Parascolopsis eriomma, and P. inermis, which had not previously been documented along the Indian coast. The estimated growth coefficient (b) values among the 15 species showed significant variation (P < 0.005) from the expected isometric value of 3, ranging from 2.7355 in N. peronii to 3.3694 in N. randalli. This pattern indicates that most of the studied species display allometric growth. The coefficient of determination (r²) values ranged from 0.8902 (N. randalli) to 0.9915 (Scolopsis vosmeri), with linear regression analyses of length and weight showing high statistical significance (P < 0.001). The Kn values were generally close to or above one, reflecting favourable growth conditions, except in N. marginatus (0.8991) and N. nematophorus (0.9497), which recorded lower condition factors. Overall, these findings provide essential insights into the population health, ecology, and growth dynamics of nemipterid fishes, and they contribute valuable baseline information for fisheries biology, stock assessment, and sustainable management of these resources.