Gulf of Mannar in southeast coast of India is considered an important biodiversity hotspot providing a variety of fishery resources. Spear-fishing, involving surface-supplied diving has become a significant threat in the Tuticorin region of Gulf of Mannar and was documented in August 2018. It is understood from the fishermen that spear-fishing is used as an opportunistic fishing method when the visibility is good. Using an iron rod of about 1.5 m, they catch commercially important fin- and shell-fishes including groupers, cat fishes, parrot fishes, rays, squids, trigger fishes, lobsters, crabs, etc. The practitioners of this harmful method target the ecologically important fishes such as parrot fishes, and this targeted collection adversely impacts the ecosystem by disturbing the ecological balance. This study makes a strong case for banning this activity before it spreads to other regions.

中文翻译：

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带表面潜水的长矛捕鱼扰乱了印度东南部曼纳尔湾的生态平衡

印度东南沿海的马纳尔湾被认为是提供多种渔业资源的重要生物多样性热点。在Mannar湾的杜蒂戈林地区，长枪捕鱼涉及地表潜水，已成为一个重大威胁，并已在2018年8月记录在案。从渔民了解到，当能见度高时，长枪捕鱼被用作机会性捕鱼方法。好。它们使用约1.5 m的铁杆捕获商业上重要的有鳍和有壳鱼，包括石斑鱼，猫鱼，鹦鹉鱼，rays鱼，鱿鱼，引诱鱼，龙虾，螃蟹等。这种有害方法的实践者以生态学为目标重要的鱼类，例如鹦鹉鱼，这种有针对性的采集会破坏生态平衡，从而对生态系统产生不利影响。