Southern California Coastal Water Research Project, 3535 Harbor Blvd., Suite 110, Costa Mesa, CA 92626-1437, USA.
Mar Pollut Bull. 2010 Jun;60(6):827-33. doi: 10.1016/j.marpolbul.2010.01.012. Epub 2010 Feb 9.
To assess benthic macrofaunal community condition in Southern California, 838 sites were sampled using spatially random designs in 1994, 1998, or 2003. Benthic community condition was assessed on a four-category scale and the area in each category estimated. Overall, benthic macrofauna in Southern California were in good condition during 2003, with 98% of the area in reference condition or deviating only marginally. There was no evidence of disturbance near Channel Islands or small wastewater discharges, and virtually none on the mainland shelf. In contrast, bay and estuary macrofaunal communities were more frequently disturbed with nearly 13% of the area supporting disturbed benthos. The condition of the mainland shelf did not change substantially over the 9-year period, with 1.6-2.8% of the area in poor benthic condition. Southern California benthic condition evaluations may be improved by extending the depth and salinity ranges of assessment tools, and improving trend detection methods.
为了评估南加州的底栖大型动物群落状况，1994 年、1998 年或 2003 年采用空间随机设计在 838 个地点进行了采样。底栖群落状况采用四级量表进行评估，并估计了每个类别的面积。总体而言，2003 年南加州的底栖大型动物状况良好，98%的区域处于参照状态或仅略有偏离。海峡群岛或小型污水排放附近没有发现干扰的证据，大陆架上几乎没有。相比之下，海湾和河口的大型动物群落更容易受到干扰，近 13%的区域支持受干扰的底栖生物。9 年来，大陆架的状况没有发生重大变化，1.6-2.8%的区域底栖条件较差。通过扩展评估工具的深度和盐度范围以及改进趋势检测方法，南加州底栖状况的评估可能会得到改善。
