UCSB SONGS Mitigation Monitoring: Reef Survey - Benthic Algae, Invertebrate, and Substrate Cover

These data describe annual estimates of the percent cover of benthic macroalgae, sessile macroinvertebrates, and hard and soft substrates at three subtidal reefs collected as part of the San Onofre Nuclear Generating Station (SONGS) Mitigation Monitoring Program.
Data collection began in 2009 at an artificial reef (Wheeler North Reef in Orange County, CA) and two natural reference reefs (San Mateo Kelp in Orange County, CA and Barn Kelp in San Diego County, CA).
In the summer of each year, divers identified and recorded species of sessile algae and macroinvertebrates, and substrate types under twenty uniformly placed points within 1 m2 quadrats that were uniformly distributed along fixed transects at each reef.

本数据集涵盖了圣奥诺弗雷核电站（San Onofre Nuclear Generating Station，SONGS）缓解监测计划中采集的三处潮下带礁的底栖大型藻类（benthic macroalgae）、固着型大型无脊椎动物（sessile macroinvertebrates）以及软硬基质的盖度百分比年度估算值。
数据采集工作始于2009年，涉及一处人工礁（加利福尼亚州奥兰治县的惠勒北礁）与两处自然对照礁（加利福尼亚州奥兰治县的圣马特奥海带礁、加利福尼亚州圣迭戈县的巴恩海带礁）。
每年夏季，潜水员会在各礁体沿固定样带均匀分布的1平方米样方内，选取20个均匀布设的点位，对样方中的固着藻类、大型无脊椎动物物种及基质类型开展鉴定与记录工作。