Data from: Composition and functional diversity of juvenile groundfish assemblages in the California current

This dataset is a collation of young-of-the year juvenile groundfish data
from pelagic trawl surveys operated by NOAA Southwest Fisheries Science
Center's Rockfish Recruitment & Ecosystem Assessment Survey
and NOAA Northwest Fisheries Science Center's Pre-Recruit survey.
These annual surveys respectively cover portions of the California Current
Large Marine Ecosystem from 1990-2023 and 2011-2023. These data were used
to calculate a suite of compositional and functional biodiversity metrics
and test prevailing hypotheses related to biogeography in the California
Current. See Gasbarro et al. (2025) for complete description of sampling
methods and processing. Each row of data contains the average
catch-per-unit effort (CPUE) of all hauls at a given station in a given
year for each species, a suite of compositoinal and functional
biodiversity metrics calculated from CPUE data, and associated metadata
for each sample. See the README file for a detailed description of the
data contained in each column.

本数据集整合了由美国国家海洋和大气管理局（National Oceanic and Atmospheric Administration, NOAA）西南渔业科学中心的岩鱼补充量与生态系统评估调查（Rockfish Recruitment & Ecosystem Assessment Survey），以及西北渔业科学中心的预补充量调查（Pre-Recruit survey）开展的中层拖网调查所获取的当年生稚底层鱼类数据。两项年度调查分别覆盖加州流大型海洋生态系统（California Current Large Marine Ecosystem）1990-2023年与2011-2023年的部分海域。本数据集被用于计算一系列组成型与功能型生物多样性指数，并检验与加州流海域生物地理学相关的主流假说。采样方法与数据处理流程的完整说明详见Gasbarro等人（2025）的研究。数据的每一行均包含：特定年份某站位所有拖网捕捞作业的单位捕捞努力量渔获量（CPUE）均值（按物种分类）、基于CPUE数据计算得到的一系列组成型与功能型生物多样性指数，以及各样本的相关元数据。各列包含的数据的详细说明，请参见数据集的README文件。