Salmon age, sex, and length samples from Prince William Sound and Copper River, 1960-2018

This package includes age, sex, length (ASL) data for sockeye, chinook, coho, and chum salmon from the Prince William Sound and Copper River areas. To gather age/sex/length samples, scales are taken from fish out of a representative sample caught at an ASL sampling project. These projects can be from escapement enumeration projects, commercial fishing operations, or hatchery operations. Scales from fish taken during a sampling event are placed on "scale cards," along with other information about both the sampling event (such as the date and location) and the fish itself (such as length and sex). This data package contains a number of files used in the processing of this dataset. The original data are contained with PWS_As_aged_20191028.zip. The reformatted and quality controlled data are contained in PWS_CopperRiver.csv. PSW_As_Aged_Formatting.Rmd is an RMarkdown file that does all of the processing steps, and utilizes the other supplemental files contained in this dataset for the processing.

本数据集套件包含源自威廉王子湾（Prince William Sound）与铜河（Copper River）区域的红大马哈鱼（sockeye salmon）、奇努克鲑鱼（chinook salmon）、银大马哈鱼（coho salmon）以及狗鲑（chum salmon）的年龄、性别与体长（ASL，即Age, Sex, Length）数据。为采集年龄/性别/体长样本，研究人员会从ASL采样项目中捕获的代表性样本鱼体上获取鳞片。此类采样项目可涵盖产卵洄游量统计项目、商业捕捞作业及人工孵化场作业三类场景。采样过程中获取的鱼体鳞片会被固定于「鳞片卡」上，同时关联记录采样相关信息（如采样日期与地点）以及鱼体自身参数（如体长与性别）。本数据集套件包含用于该数据集处理的多个配套文件：原始数据存储于PWS_As_aged_20191028.zip压缩包内；经过格式标准化与质量管控的数据集存储于PWS_CopperRiver.csv文件内；PSW_As_Aged_Formatting.Rmd为RMarkdown格式文件，可完成全部数据处理流程，并调用本数据集内的其他辅助文件完成数据处理工作。