A review of jellyfish aggregations focused on India’s coastal waters was conducted, with the aim to enhance understanding of conducive conditions and subsequent ecological impacts. Jellyfish swarming, as well as their beach strandings, have been reported from many areas of the world—including India’s coastal waters. A variety of natural (winds, tidal fronts, surface currents, water temperature, salinity, turbidity, dissolved oxygen) and anthropogenic (water quality deterioration, overfishing, translocation, habitat modification) factors play pivotal roles in triggering jellyfish aggregations. Jellyfish aggregation events in the forms of their swarming in coastal waters and beach strandings have resulted in ephemeral nuisances such as water quality deterioration, food chain alterations, hindrance in seawater uptake by power plants, clogging of nets during fishing operations, and tourism declines. Several well-known Indian tourist beaches (e.g., Puri, Chennai, Goa, and Mumbai) have experienced beach strandings. Despite recurrence of such events, jellyfishes are relatively less scientifically investigated and monitored in Indian coastal waters. Therefore, it is important to determine the environmental conditions that trigger jellyfish swarming, in order to develop effective monitoring and prediction strategies. This study additionally proposes a conceptual framework towards development of a jellyfish monitoring system for Indian waters using satellite and model data.

中文翻译：

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回顾水母的聚集，重点是印度的沿海水域

对以印度沿海水域为中心的水母聚集体进行了审查，目的是加深对有利条件和随后的生态影响的了解。在世界许多地区，包括印度的沿海水域，都报告了水母群及其海滩搁浅的情况。各种自然因素（风，潮汐前沿，地表水流，水温，盐度，浊度，溶解氧）和人为因素（水质恶化，过度捕捞，易位，栖息地改变）在触发水母聚集中起关键作用。水母聚集事件以其在沿海水域的聚集和海滩搁浅的形式造成了短暂的滋扰，例如水质恶化，食物链改变，发电厂吸收海水的障碍，捕捞过程中网眼堵塞，旅游业下降。几个著名的印度旅游海滩（例如，普里，金奈，果阿和孟买）经历过海滩搁浅的情况。尽管此类事件再次发生，但在印度沿海水域，对水母的科学调查和监测相对较少。因此，确定引发水母蜂拥而至的环境条件很重要，以便制定有效的监测和预测策略。这项研究还为使用卫星和模型数据为印度水域开发水母监测系统提出了一个概念框架。在印度沿海水域，对水母的科学调查和监测相对较少。因此，确定引发水母蜂拥而至的环境条件很重要，以便制定有效的监测和预测策略。这项研究还为使用卫星和模型数据为印度水域开发水母监测系统提出了一个概念框架。在印度沿海水域，对水母的科学调查和监测相对较少。因此，确定引发水母蜂拥而至的环境条件很重要，以便制定有效的监测和预测策略。这项研究还为使用卫星和模型数据为印度水域开发水母监测系统提出了一个概念框架。