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<p>Fishing gears lost or abandoned intentionally or due to some unavoidable situation or damage is left within the sea bottom continue to kill fish by entangling, physical damage to the reef-building corals and its associated macrobiota. Ghost nets also pose a threat to Indian reefs, and during a routine coral reef monitoring study, multiple incidences of coral species mortality were found in four distinct areas of Palk Bay reef on India’s Southeast coast. We looked at a total of 78 coral colonies, 42 of which were branching corals (<i>Acropora</i> sp.) and 36 of which were massive corals (<i>Porites</i> sp., <i>Goniastrea</i> sp., <i>Favites</i> sp. and <i>Dipsastraea</i> sp.) that were either totally or partially impacted by entangled fishing gear. The eight remaining colonies showed obvious signs of damage from fishing traps left on the living reefs, although they lacked tangled fishing lines. <i>Acropora</i> corals in shallow water reefs are the major contributors to the structural complexity of the reef and also attract coral-fish interaction to maintain the ecological integrity of the reef. Therefore, ghost fishing affects such habitat complexity, which supports high biodiversity and complex biological interactions. Present study reports photographic evidence of the damage caused by Derelict Fishing Gear (DFG) and also discusses the possible measures at different levels of work to reduce the risk of ghost nets in shallow reef environments.</p>

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Ghost Fishing Gear: A Multifaceted Risk to the Coral Reefs Along India’s Southeast Coast

  • 期刊论文

  • 发表日期：

    2025年6月4日

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  • Koushik Sadhukhan,
  • T. Shunmuagaraj,
  • Rukmini Shekar,
  • S. R. Marigoudar,
  • M. V. Ramana Murthy

摘要

Fishing gears lost or abandoned intentionally or due to some unavoidable situation or damage is left within the sea bottom continue to kill fish by entangling, physical damage to the reef-building corals and its associated macrobiota. Ghost nets also pose a threat to Indian reefs, and during a routine coral reef monitoring study, multiple incidences of coral species mortality were found in four distinct areas of Palk Bay reef on India’s Southeast coast. We looked at a total of 78 coral colonies, 42 of which were branching corals (Acropora sp.) and 36 of which were massive corals (Porites sp., Goniastrea sp., Favites sp. and Dipsastraea sp.) that were either totally or partially impacted by entangled fishing gear. The eight remaining colonies showed obvious signs of damage from fishing traps left on the living reefs, although they lacked tangled fishing lines. Acropora corals in shallow water reefs are the major contributors to the structural complexity of the reef and also attract coral-fish interaction to maintain the ecological integrity of the reef. Therefore, ghost fishing affects such habitat complexity, which supports high biodiversity and complex biological interactions. Present study reports photographic evidence of the damage caused by Derelict Fishing Gear (DFG) and also discusses the possible measures at different levels of work to reduce the risk of ghost nets in shallow reef environments.