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首页> 外文期刊>International Journal of Ecology >Community-Level Response of Fishes and Aquatic Macroinvertebrates to Stream Restoration in a Third-Order Tributary of the Potomac River, USA
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Community-Level Response of Fishes and Aquatic Macroinvertebrates to Stream Restoration in a Third-Order Tributary of the Potomac River, USA

机译：美国波托马克河三级支流鱼类和水生无脊椎动物的群落一级对河流恢复的响应

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摘要

Natural stream channel design principles and riparian restoration practices were applied during spring 2010 to an agriculturally impaired reach of the Cacapon River, a tributary of the Potomac River which flows into the Chesapeake Bay. Aquatic macroin-vertebrates and fishes were sampled from the restoration reach, two degraded control, and two natural reference reaches prior to, concurrently with, and following restoration (2009 through 2010). Collector filterers and scrapers replaced collector gatherers as the dominant macroinvertebrate functional feeding groups in the restoration reach. Before restoration, based on indices of biotic integrity (IBI), the restoration reach fish and macroinvertebrate communities closely resembled those sampled from the control reaches, and after restoration more closely resembled those from the reference reaches. Although the macroinvertebrate community responded more favorably than the fish community, both communities recovered quickly from the temporary impairmentcaused by the disturbance of restoration procedures and suggest rapid improvement in local ecological conditions.
机译：天然河道设计原则和河岸恢复实践在2010年春季应用于农业受损的卡卡彭河，卡波芬河是波托马克河的支流，流入切萨皮克湾。在恢复之前，同时和之后（2009年至2010年），从恢复范围，两个降级的控制区域和两个自然参考范围取样水生大型脊椎动物和鱼类。收集器的过滤器和刮板取代了收集器的收集器，成为恢复范围内主要的无脊椎动物功能性饲养组。在恢复之前，根据生物完整性指数（IBI），恢复到鱼类和大型无脊椎动物群落与从对照河段取样的鱼类非常相似，而在恢复后与参考河段的取样更加相似。尽管大型无脊椎动物社区的反应比鱼类社区更为有利，但两个社区都从受恢复程序干扰所造成的暂时损害中迅速恢复过来，并建议当地生态条件得到快速改善。

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