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<p>Comprehensive knowledge of the parameters of length–weight relationships (<i>LWR</i>) is imperative for formulating adoption-centric fisheries management and conservation strategies. The present study evaluated the <i>LWR</i> and relative condition factors (<i>K</i><sub><i>R</i></sub>) of four teleost species belonging to four different families from Zuari estuary, Goa, southwest coast of India. The coefficient of determination (<i>r</i><sup>2</sup>) ranged from 0.90 (<i>Ambassis gymnocephalus</i>) to 0.95 (<i>Gerres limbatus)</i>, suggested that the <i>LWR</i> model is a good fit for the data. The estimated <i>b</i> values were within the expected range of 2.5–3.5, with <i>Ambassis gymnocephalus</i> (<i>b</i> = 3.06) exhibiting isometric growth while all other species exhibiting negative allometric growth: <i>Gerres limbatus</i> (<i>b</i> = 2.72); <i>Glossogobius giuris</i> (<i>b</i> = 2.83) and <i>Scatophagus argus</i> (<i>b</i> = 2.87). The <i>K</i><sub><i>R</i></sub> ranged close to unity across all species, suggestive of stable somatic conditions. Given the resilience of estuarine resident fishes and their importance to local fisheries, data derived from the present study will serve as a baseline for understanding the fish biometric relationships from ecologically sensitive habitats.</p>

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Length-weight Relationships and Condition Factors of Four Estuarine Fishes from Zuari, Southwest Coast of India

  • 期刊论文

  • 发表日期：

    2026年3月12日

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  • Amisha Prakash Naik,
  • M. P. Goutham-Bharathi,
  • Preeti Antonetta Pereira

摘要

Comprehensive knowledge of the parameters of length–weight relationships (LWR) is imperative for formulating adoption-centric fisheries management and conservation strategies. The present study evaluated the LWR and relative condition factors (KR) of four teleost species belonging to four different families from Zuari estuary, Goa, southwest coast of India. The coefficient of determination (r2) ranged from 0.90 (Ambassis gymnocephalus) to 0.95 (Gerres limbatus), suggested that the LWR model is a good fit for the data. The estimated b values were within the expected range of 2.5–3.5, with Ambassis gymnocephalus (b = 3.06) exhibiting isometric growth while all other species exhibiting negative allometric growth: Gerres limbatus (b = 2.72); Glossogobius giuris (b = 2.83) and Scatophagus argus (b = 2.87). The KR ranged close to unity across all species, suggestive of stable somatic conditions. Given the resilience of estuarine resident fishes and their importance to local fisheries, data derived from the present study will serve as a baseline for understanding the fish biometric relationships from ecologically sensitive habitats.