| 胸鳍相对长度 Relative pectoral fin length | 胸鳍长/体长 Pectoral fin length/Standard length | 比值越大, 则转向越强, 灵活性越高 The greater the ratio, the stronger the steering and the higher the flexibility | 1984 |
| 腹鳍相对长度 Relative pelvic fin length | 腹鳍长/体长 Pelvic fin length/Standard length | 比值越大, 则转向越强, 灵活性越高 The greater the ratio, the stronger the steering and the higher the flexibility | 本文 This paper |
| 尾鳍形状 Caudal fin shape | 尾鳍面积/(体长 × 体高) Caudal fin area/(Standard length × Body depth) | 比值越高, 游泳加速度越快 The higher the ratio of persistence and acceleration of swimming, the faster the swimming acceleration | 1984 |
| 尾柄相对高度 Relative caudal peduncle depth | 尾柄高/体高 Caudal peduncle depth/Body depth | 比值越高, 尾鳍摆动能力越强 The higher the ratio, the stronger the tail fin swinging ability | 本文 This paper |
| 口裂相对大小 Relative mouth opening | 口裂 × 口高/(体宽 × 体高) (Mouth depth × Mouth width)/(Body width × Body depth) | 最大捕食能力, 比值越高, 能力越强 Maximum predation ability, the higher the ratio, the stronger the ability | 2003 |
| 眼睛相对大小 Relative eye size | 眼径/头长 Eye diameter/Head length | 对食物的可视范围 Visual scope to food | 2006 |
| 体型指标I Body shape I | 体高/体长 Body depth/Standard length | 水体中的栖息位置 Habitat location in water body | 2000 |
| 体型指标II Body shape II | 体高/体宽 Body depth/Body width | 水体中的栖息位置 Habitat location in water body | 2000 |
| 眼睛相对位置 Relative position of eye | 眼径/头高 Eye diameter/Head depth | 在水体中的垂直位置 Vertical position in water body | 1979 |
| 食性 Feeding habits | 肉食性、杂食性(偏肉食性、偏植食性)、植食性 Carnivorous, omnivorous (partial carnivorous, partial phytophagous), phytophagous | 对食物的偏好 Food preference | - |
| 口位 Mouth position | 上位、亚上位、端位、亚下位、下位 Superior, sub-superior, terminal, sub- inferior, inferior | 不同位置表示获得食物组成不一样 Different location means different food composition | - |