Montefalcone Monica, Albertelli Giancarlo, Morri Carla, Parravicini Valeriano, Bianchi Carlo Nike
DipTeRis, Department for the study of the Territory and of its Resources, University of Genoa, Corso Europa 26, 16132 Genoa, Italy.
Mar Pollut Bull. 2009 Apr;58(4):515-9. doi: 10.1016/j.marpolbul.2008.12.001. Epub 2009 Jan 17.
Using the Conservation Index, which measures the proportional amount of dead matte relative to live Posidonia oceanica, we assessed the health of 15 P. oceanica meadows at a regional scale along the coast of Liguria (NW Mediterranean). These areas were characterized by different degrees of anthropization, from highly urbanized sites to marine protected areas. Two different scenarios were identified according to depth: in shallow zones, the health of P. oceanica meadows was related to the degree of anthropization along the coastline. In contrast, in deep zones, most meadows exhibited poor health, independent of both the degree of disturbance and the legal measures protecting the area. Working synergistically with the regional impact of increased water turbidity, local impacts from the coast were recognized as the main causes of the severe regression of most Ligurian P. oceanica meadows. We conclude that marine protected areas alone are not sufficient to guarantee the protection of P. oceanica meadows. We emphasize the need for a management network involving the Sites of Community Interest (SCIs) containing P. oceanica meadows.
利用衡量相对于活的波喜荡草死亡物质比例量的保护指数，我们在利古里亚海岸（地中海西北部）的区域尺度上评估了15片波喜荡草草甸的健康状况。这些区域具有不同程度的人为化特征，从高度城市化的地点到海洋保护区。根据深度确定了两种不同的情况：在浅水区，波喜荡草草甸的健康状况与海岸线沿线的人为化程度有关。相比之下，在深水区，大多数草甸健康状况不佳，与干扰程度和保护该区域的法律措施无关。与水体浊度增加的区域影响协同作用，来自海岸的局部影响被认为是利古里亚大多数波喜荡草草甸严重衰退的主要原因。我们得出结论，仅靠海洋保护区不足以保证对波喜荡草草甸的保护。我们强调需要一个涉及包含波喜荡草草甸的社区利益场所（SCI）的管理网络。
