1. The impacts of fisheries on several charismatic marine fauna have been a subject of global concern. Sea snakes share the same habitats as many commercially important fish species and often end up as fisheries bycatch.
2. Previous studies of bycatch from India have been limited to individual reports of mortality, with little information on the regional community structure of sea snakes. This study was carried out along the Konkan coast, off the central west coast of India, between 2016 and 2018, to determine trends in the bycatch of sea snakes in coastal fisheries.
3. In this study, 922 sea snakes were encountered in 916.57 gillnet haul hours and 449.16 trawlers haul hours of fishing, comprising largely of two species: beaked sea snake (Hydrophis schistosus) and spine-bellied sea snake (Hydrophis curtus) (83.05 and 16.94% respectively) which was in stark contrast to a similar study conducted in 2002–03, which recorded a dominance of H. curtus (84%) followed by H. schistosus (14%) in the same region. Both studies, however, indicated higher mortality in H. curtus than in H. schistosus in trawl nets.
4. This study highlights the significant impact of non-selective fishing practices on regional assemblages of other marine organisms such as sea snakes from South Asia, which has been relatively understudied, and the potential consequences for local ecosystems.

中文翻译：

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渔业导致印度康坎海岸海蛇群落的变化

1. 渔业对几种具有魅力的海洋动物群的影响一直是全球关注的主题。海蛇与许多具有重要商业价值的鱼类拥有相同的栖息地，并且经常成为渔业兼捕物。
2. 以前对印度兼捕的研究仅限于个别死亡报告，几乎没有关于海蛇区域群落结构的信息。这项研究是在 2016 年至 2018 年间在印度中西海岸附近的康坎海岸进行的，以确定沿海渔业中海蛇兼捕的趋势。
3. 在这项研究中，在 916.57 小时刺网和 449.16 小时拖网捕鱼中遇到了 922 条海蛇，主要包括两种：喙海蛇 ( Hydrophis schistosus ) 和脊腹海蛇 ( Hydrophis curtus)（83.05 和 16.94%）分别）与 2002-03 年进行的一项类似研究形成鲜明对比，该研究记录了同一地区的H. curtus (84%) 其次是H. schistosus (14%)。然而，两项研究都表明拖网中H. curtus 的死亡率高于H. schistosus。
4. 这项研究强调了非选择性捕捞做法对其他海洋生物（如南亚海蛇）的区域组合的重大影响，这对当地生态系统的潜在影响相对较少。