SBC LTER Darwin Core Archive: Kelp Forest Reef Fish Abundance

These data describe the abundance of reef fish as part of the Santa Barbara Coastal LTER program (SBC LTER) to track long-term patterns in kelp forest reef species abundance and diversity. The study began in 2000 in the Santa Barbara Channel, California, USA, and the time series is ongoing and updated approximately annually. Abundances of all taxa of resident kelp forest fish encountered along permanent transects are recorded at nine reef sites located along the mainland coast of the Santa Barbara Channel and at two sites on the north side of Santa Cruz Island. These sites reflect several oceanographic regimes in the channel and vary in distance from sources of terrestrial runoff. In these surveys, fish were counted in either a 40x2m benthic quadrat, or in the water parcel 0-2m off the bottom over the same area. This dataset is formatted as a Darwin Core Archive (DwC-A, occurrence core). All taxa are counted (using an open species list), and abundances are zero-filled for each taxon not encountered. This is a derived data product and less-processed data may be available. See http://sbc.lternet.edu for more information and source data, which may include additional measurements, and http://sbc.marinebon.edu for processing notes.

本数据集属于圣巴巴拉海岸长期生态研究计划（Santa Barbara Coastal LTER Program, SBC LTER）的研究成果，旨在追踪海带林礁区鱼类的物种丰度与多样性长期变化模式，内容涵盖礁区鱼类的丰度数据。本研究于2000年在美国加利福尼亚州圣巴巴拉海峡启动，时间序列监测仍在持续，约每年更新一次。
研究团队在圣巴巴拉海峡大陆沿岸的9个礁区站点，以及圣克鲁斯岛北侧的2个站点，对永久样带上观测到的所有定居性海带林鱼类类群的丰度进行记录。这些站点覆盖了海峡内的多种海洋动力环境，且与陆地径流源的距离各不相同。
本调查采用两种计数方式：一是在40×2米的底栖样方内计数，二是在相同区域内底床上方0-2米的水层中计数。本数据集采用达尔文核心归档（Darwin Core Archive, DwC-A，发生数据核心）格式进行组织。所有鱼类类群均纳入计数范围（采用开放物种列表），未观测到的类群丰度将以0值填充。
本数据集为衍生数据产品，原始未加工数据或有留存。如需获取更多信息与原始数据（可能包含额外测量数据），请访问http://sbc.lternet.edu；若需了解数据处理说明，请访问http://sbc.marinebon.edu。