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Background <p> <i>Clinostomum complanatum</i> (Trematoda: Clinostomidae) infects freshwater fishes, causing metabolic stress and economic loss. Data on its morphology and physiological impact on <i>Channa punctata</i> in Lucknow wetlands are limited.</p> Objectives <p> To identify <i>C. complanatum </i>using light and scanning electron microscopy (SEM) and assess its effect on host protein levels.</p> Methods <p> Fifty <i>C. punctata</i> were collected from the Kallipaschim wetland, Lucknow. Parasites were morphologically and ultrastructurally characterized. Protein concentrations in liver, muscle, and parasite tissues were analyzed using the Bradford assay and compared between infected and uninfected fish.</p> Results <p> <i>C. complanatum</i> showed a dorsoventrally flattened body with distinct oral and ventral suckers and spined tegument. Infected fish exhibited elevated protein concentrations liver (2.5 µg/ml), muscle (5.29 µg/ml), and parasite (3.95 µg/ml) indicating metabolic stress, immune activation, and tissue repair. The parasite’s high protein level reflected dependence on host nutrients.</p> Conclusion <p> <i>C. complanatum</i> infection causes significant biochemical and structural alterations in <i>C. punctata</i>, impairing health and reducing aquaculture productivity. Regular monitoring and parasite control are crucial for sustainable fish farming.</p>

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Morphological Identification and Protein Estimation of Clinostomum complanatum and its Impact on Fish Channa punctata of Lucknow Wetlands, Uttar Pradesh, India

  • 期刊论文

  • 发表日期：

    2025年11月20日

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  • Pradeep Kumar,
  • Akriti Rai,
  • Neeshma Jaiswal

摘要

Background

Clinostomum complanatum (Trematoda: Clinostomidae) infects freshwater fishes, causing metabolic stress and economic loss. Data on its morphology and physiological impact on Channa punctata in Lucknow wetlands are limited.

Objectives

To identify C. complanatum using light and scanning electron microscopy (SEM) and assess its effect on host protein levels.

Methods

Fifty C. punctata were collected from the Kallipaschim wetland, Lucknow. Parasites were morphologically and ultrastructurally characterized. Protein concentrations in liver, muscle, and parasite tissues were analyzed using the Bradford assay and compared between infected and uninfected fish.

Results

C. complanatum showed a dorsoventrally flattened body with distinct oral and ventral suckers and spined tegument. Infected fish exhibited elevated protein concentrations liver (2.5 µg/ml), muscle (5.29 µg/ml), and parasite (3.95 µg/ml) indicating metabolic stress, immune activation, and tissue repair. The parasite’s high protein level reflected dependence on host nutrients.

Conclusion

C. complanatum infection causes significant biochemical and structural alterations in C. punctata, impairing health and reducing aquaculture productivity. Regular monitoring and parasite control are crucial for sustainable fish farming.