Fishery stock assessment values of natural mortality and steepness

This dataset contains information on natural mortality and steepness values for 80 stock fishery stock assessments. The database denotes whether these values were fixed in the assessments, or estimated within a model.本数据集涵盖了80项渔业种群评估（fishery stock assessment）中的自然死亡率（natural mortality）与陡度值（steepness value）相关数据。该数据库标注了上述参数是在评估过程中被固定设定，还是通过模型估算得到的。