Sea farm cages attract a range of wild fish species by providing shelter and food. The fish aggregation study was carried out around the open sea cages deployed at (9°20′03.95″N; 79°19′53.05″E) Olaikuda, Rameshwaram. A total of 2515 fish representing 51 species from 26 families and 9 orders were recorded by Underwater Visual Census (UVC) method from both sea-cage farm and control site. The genus Siganus was very common in both the cage and the control site and recorded in each sampling. The fish abundance distribution depicted a similar pattern to that of the cluster analysis when subjected to 2D NMDS ordinations and showed a distinct cluster pattern for the cage site. The Shannon Wiener diversity indices illustrated high abundance (224) and richness (7.33) at the cage site compared to the control site (common fishing ground). There was a significant temporal variation (F = 8.9, p < 0.05) in the abundance of fish between the cage and the control site. In general, the congregation, density, and diversity of aggregated fish were much higher around sea cages than control site. This study reports the number of fish species in the vicinity of the cage system and the reasons for the congregation of fishes below the cage system was discussed in detail.

海洋农场网箱通过提供庇护所和食物来吸引各种野生鱼类。鱼类聚集研究是在拉梅什瓦拉姆的奥莱库达 (9°20′03.95″N；79°19′53.05″E) 部署的公海网箱周围进行的。通过水下视觉普查 (UVC) 方法从海网箱养殖场和控制地点共记录了 26 科 9 目 51 种鱼类 2515 条。西加努斯属在笼子和控制地点都非常普遍，并在每次采样中记录。当进行 2D NMDS 排序时，鱼类丰度分布描绘了与聚类分析相似的模式，并显示出网箱位置的独特聚类模式。Shannon Wiener 多样性指数表明，与对照地点（普通渔场）相比，网箱地点的丰度（224）和丰富度（7.33）。存在显着的时间变化（F  = 8.9，p < 0.05) 在网箱和对照地点之间的鱼丰度。一般来说，海网箱周围的聚集鱼群的聚集度、密度和多样性比对照地点高得多。本研究报告了网箱系统附近鱼类的数量，并详细讨论了网箱系统下方鱼类聚集的原因。