Nearshore Fishes Abundance and Distribution Data, California Collaborative Fisheries Research Program (CCFRP), 2007 - 2019.

Data in this collection include the species and quantity of nearshore fishes caught during drifts conducted in and near California Marine Protected Areas between 2007 and 2019. The California Collaborative Fisheries Research Program (CCFRP) initially surveyed four protected areas and four nearby, fished reference areas in central California annually; the program expanded to 15 protected and 16 reference areas statewide in 2017. Data were generated from hook-and-line surveys conducted within 500x500 m grid cells positioned inside protected and reference areas. Each fish caught was identified to the species level whenever possible; otherwise, fish were identified to the lowest possible taxonomic level. The number of hours each angler spent fishing during each survey and the length of each fish caught were also recorded, enabling the calculation of biomass, Catch-Per-Unit-Effort (CPUE), and Biomass-Per-Unit-Effort (BPUE).This submission includes two derived data tables, CCFRP_derived_length_table.csv and CCFRP_derived_effort_table.csv, containing the number of fish of each species caught during each survey, their lengths, the total number of angler hours required to catch them, CPUE and BPUE. The R code used to obtain these tables from the raw data files is also included (CCFRP_derived_data_table_code_R.pdf). Raw data files are stored on the Moss Landing Marine Laboratories Digital Commons (http://islandora.mlml.calstate.edu/islandora/object/islandora%3A10865). The boundaries for the MPAs referenced in this dataset and information on related long-term California MPA monitoring efforts can be found here: https://opc.dataone.org/view/doi:10.25494/P6V884The CCFRP aims to develop rigorous survey methods and collect baseline data on the species, size composition and relative abundance of fishes associated with shallow rocky habitats inside proposed Marine Protected Areas (MPAs) and nearby fished reference areas. These data underpin an ongoing monitoring effort that engages the recreational fishing community to help evaluate changes in the species, size composition and relative abundance of fishes in MPA and reference sites after MPA establishment.

本数据集收录了2007至2019年间，在加利福尼亚海洋保护区（California Marine Protected Areas，MPAs）及其邻近海域开展漂流垂钓采样时捕获的近岸鱼类种类与数量数据。加利福尼亚合作渔业研究项目（California Collaborative Fisheries Research Program，CCFRP）最初每年对加利福尼亚中部的4个海洋保护区及邻近的4个受捕捞参照区域开展调查；2017年，项目覆盖范围扩大至全州的15个保护区与16个参照区域。数据来源于在保护区及参照区域内的500米×500米网格单元中开展的手钩垂钓调查。所有捕获的鱼类均尽可能鉴定至物种水平，无法精确到物种时则鉴定至最低可行的分类学阶元。调查期间还记录了每位垂钓者的作业时长及每条捕获鱼类的体长，由此可计算生物量、单位捕捞努力量渔获量（Catch-Per-Unit-Effort，CPUE）及单位捕捞努力量生物量（Biomass-Per-Unit-Effort，BPUE）。
本次提交包含两份衍生数据表：CCFRP_derived_length_table.csv与CCFRP_derived_effort_table.csv，分别记录了各次调查中捕获的各物种鱼类数量、鱼类体长、捕获所需的总垂钓时长，以及CPUE与BPUE数值。用于从原始数据文件生成上述数据表的R代码也一并提供（CCFRP_derived_data_table_code_R.pdf）。原始数据文件存储于莫斯兰丁海洋实验室数字知识库（Moss Landing Marine Laboratories Digital Commons），访问链接为：http://islandora.mlml.calstate.edu/islandora/object/islandora%3A10865。本数据集涉及的海洋保护区边界及加利福尼亚州长期海洋保护区监测相关信息可通过以下链接获取：https://opc.dataone.org/view/doi:10.25494/P6V884。
加利福尼亚合作渔业研究项目（CCFRP）旨在建立严谨规范的调查方法，并收集拟设立海洋保护区（Marine Protected Areas，MPAs）及其邻近受捕捞参照区域内浅岩生境相关鱼类的种类、体长组成及相对丰度的基线数据。这些数据为一项持续开展的监测工作提供支撑，该项目动员休闲垂钓群体参与，以评估海洋保护区设立后保护区及参照区域内鱼类的种类、体长组成与相对丰度的变化情况。