Septentrion Environnement, Campus Nature Provence, Marseille, France.
Septentrion Environnement, Campus Nature Provence, Marseille, France.
Mar Environ Res. 2024 Apr;196:106384. doi: 10.1016/j.marenvres.2024.106384. Epub 2024 Jan 30.
Gorgonian octocorals are threatened by global and local stressors that can act synergistically to affect their health. In recent years, mass mortality events triggered by marine heatwaves have caused demographic declines in Mediterranean gorgonian populations that may lead to their collapse. Potential changes in microbiome composition under stressful conditions may further increase the susceptibility of the gorgonian holobiont to disease. Given the low recovery capacity of gorgonians, restoration approaches using transplantation are becoming an increasingly attractive option to counteract their decline. Here, we compared the survival and microbiome diversity of Paramuricea clavata colonies transplanted to sites differing in depth and local environmental conditions. Gorgonians sampled at a greater depth than the transplantation site were more likely to suffer necrosis after 1 year of monitoring. Gorgonian transplantation into environments disturbed by an anthropogenic source of pollution resulted in an imbalance of the microbiome with potential consequences on the success of restoration initiatives.
柳珊瑚是受到全球和局部胁迫的威胁，这些胁迫因素可能协同作用，影响它们的健康。近年来，海洋热浪引发的大规模死亡事件导致地中海柳珊瑚种群数量减少，可能导致其崩溃。在胁迫条件下微生物组组成的潜在变化可能会进一步增加柳珊瑚后生动物体对疾病的易感性。考虑到柳珊瑚的低恢复能力，使用移植的恢复方法正成为一种越来越有吸引力的选择，以抵消它们的减少。在这里，我们比较了移植到深度和局部环境条件不同的地点的 Paramuricea clavata 群体的存活率和微生物多样性。在监测 1 年后，比移植地点更深的地方采集的柳珊瑚更容易发生坏死。将柳珊瑚移植到受到人为污染源干扰的环境中，会导致微生物组失衡，这可能对恢复计划的成功产生潜在影响。
