白令海与楚科奇海鱼类营养级与营养生态位

付树森, 宋普庆, 李渊, 李袁源, 张然, 张琥顺, 王芮, 林龙山

Trophic levels and trophic niches of fish from the Bering Sea and Chukchi Sea

Shusen Fu, Puqing Song, Yuan Li, Yuanyuan Li, Ran Zhang, Hushun Zhang, Rui Wang, Longshan Lin

表4 白令海与楚科奇海鱼类群落的稳定同位素参数值对比

Table 4 Comparison of community-wide metrics based on stable isotopic ratios for fishes from Bering Sea-Chukchi Sea

不规则图形面积 Total area of the convex hull (TA) δ15N范围 δ15N range (NR) δ13C范围 δ13C range (CR) 质心的平均距离 Mean distance to centroid (CD) 最短均值 Mean nearest neighbour distance (MNND) 最短标准差 Standard deviation of nearest neighbour distance (SDNND) 本研究 This study 13.08 5.06 4.25 2.04 0.61 0.53 纪炜炜等, 2015 12.05 3.59 4.83 1.51 0.41 0.22 Marsh et al, 2017 8.8 4.4 3.3 1.28 0.50 0.32