Spanish Porcupine Bottom Trawl Survey for commercial fish species

The dataset includes age- and length-based catch per unit effort data for commercial fish species collected during the Spanish Porcupine Bottom Trawl Survey.本数据集包含西班牙猪背滩底拖网调查期间采集的商业性鱼类物种的基于年龄与体长的单位捕捞努力量渔获量（catch per unit effort）数据。