入侵物种会造成严重的经济损失,生态系统的改变,甚至会威胁人类健康。在全球变暖的情况下,可以作为嗜热物种扩张的驱动力,我们首次调查了入侵胡须火虫造成的经济损失,Hermodicecarunculata,地中海的手工延绳钓渔业。我们专注于底部延绳钓渔业,目标是高度珍贵的白海鱼Diplodussargus,调查渔具的渔获量组成和捕捞物种的单位努力捕捞量(CPUE),特别强调胡须火虫造成的经济损失,H.carunculata,与水温有关。我们的结果清楚地表明,西西里岛(爱奥尼亚海)东南沿海对捕鱼活动造成了直接和间接的经济损失。侵入性蠕虫(H.carunculata)与通过这种传统的手工渔业获得的时间尺度和总产量进行了讨论,并提出了一些解决方案。然而,实际情况需要特别关注,因为预计在全球变暖的未来情景下,情况会恶化,因此,迫切需要进一步的研究。
Invasive species can cause severe economic damages, ecosystem alterations, and can even threat human health. In the global warming scenario, which can act as a driving force for the expansion of thermophilic species, we investigated for the first time the economic damage caused by the invasive bearded fireworm, Hermodice carunculata, to artisanal longline fishery in the Mediterranean Sea. We focused on bottom longline fishery targeting the highly prized white seabream Diplodus sargus, investigating catch composition of the fishing gear and Catch Per Unit Effort (CPUE) of species caught, with particular emphasis on the economic damage caused by the bearded fireworm, H. carunculata, in relation to water temperature. Our results clearly indicated direct and indirect economic damage to fishing activities practiced in the southeastern coast of Sicily (Ionian Sea). Type and extent of the damage caused by the invasive worm (H. carunculata) were discussed in relation to temporal scale and overall yields obtained by this traditional artisanal fishery, and some solutions are proposed. However, the actual situation requires special attention because it is expected to worsen in the context of the global warming future scenarios, such that further studies are urgently needed.