The bamboo coral Isidella elongata is a key structuring species on deep muddy bottoms, which has suffered severe consequences from bottom-fishing activities, as it often co-occurs with precious fishery resources such as red shrimps. A five-year series of data collected during a scientific trawl survey was used to localize the presence and to characterize the associated megafauna over a wide spatial scale in the Western and Central Mediterranean (Sardinia, South-Central Tyrrhenian, Western Ionian and Southern Adriatic). In addition, the overlap of I. elongata hotspots with nursery and spawning areas of three selected species (Aristaeomorpha foliacea, Aristeus antennatus and Galeus melastomus) was analysed. The sizes of the colonies were analysed in the South-Central Tyrrhenian and the Southern Adriatic. No significant variation over time was observed in the former, while in the latter, the colonies were bigger but showed a decreasing trend over time.

竹珊瑚长岛Isidella elongata是深泥泞底部的主要构造物种，由于经常与珍贵的渔业资源（如红虾）同时发生，因此底部捕捞活动遭受了严重后果。在一次科学拖网调查中收集了一个为期五年的系列数据，用于在地中海中西部（撒丁岛，第勒尼安中南部，爱奥尼亚州南部和亚得里亚海南部）在较大的空间范围内对相关大型动物进行定位和特征分析。此外，重叠I.泡桐与苗圃热点和产卵区的三个选定物种（Aristaeomorpha foliacea，Aristeus antennatus和Galeus melastomus）进行了分析。在中南第勒尼安尼亚州和南亚得里亚海分析了菌落的大小。在前者中没有观察到随时间的显着变化，而在后者中，菌落更大，但是随着时间的推移显示出下降的趋势。