Sun Lufeng, Que Jianglong, Niu Jianqun, Li Xiuqi, Wang Junpeng, Cong Xuri
Shandong Freshwater Fisheries Research Institute, Jinan 250013, China.
Aquatic Conservation and Rescue Center of Jiangxi Province, Nanchang 330029, China.
Biology (Basel). 2025 Feb 13;14(2):196. doi: 10.3390/biology14020196.
Based on the data from a continuous fishery resource survey conducted in the Shandong province area of the Yellow River from the summer and autumn of 2022 to the winter and spring of 2023, this study constructed fish biomass particle-size spectra. It compared and analyzed the differences in the characteristics of the fish biomass particle-size spectrum parameters across four different seasons in various survey areas. The results indicated that the fish biomass particle-size spectra in the Shandong province area of the Yellow River exhibited significant seasonal and spatial variations. Overall, the shape of the Sheldon-type biomass particle-size spectra across the four seasons showed a unimodal pattern. The peak values in spring and summer ranged between 32-64 g, while in autumn, it reached 64-128 g, and in winter, it was 1024-2048 g. The dominant species shifted from small individuals in spring and summer to larger individuals in autumn and winter. The fitted curves of the standardized biomass particle-size spectra for the four seasons displayed a dome-shaped parabola, generally arranged from high to low in the biomass particle-size spectra lines from spring to winter, with winter experiencing the least external disturbance. In terms of the regional distribution, the peak particle-size classes for fish in the areas of Gaocun, Dong'a, and Gaoqing all corresponded to the particle-size class of 16-32 g, predominantly featuring small fish species such as and . In contrast, the peak particle-size class in the estuarine waters corresponded to 512-1024 g, mainly comprising larger fish species like , , and . The differences in the standardized biomass particle-size spectra among the four regions were not significant, but the curvature of the estuarine waters was the highest, indicating the least external disturbance. The abundance-biomass comparison (ABC) curve suggested that the fish community in the Shandong province area of the Yellow River is in a severely disturbed state.
基于2022年夏秋至2023年冬春在黄河山东段开展的连续渔业资源调查数据，本研究构建了鱼类生物量粒径谱。比较分析了各调查区域四个不同季节鱼类生物量粒径谱参数特征的差异。结果表明，黄河山东段的鱼类生物量粒径谱呈现出显著的季节和空间变化。总体而言，四个季节的谢尔登型生物量粒径谱形状呈单峰模式。春季和夏季的峰值在32 - 64克之间，秋季达到64 - 128克，冬季为1024 - 2048克。优势种从春夏的小型个体转变为秋冬的大型个体。四个季节标准化生物量粒径谱的拟合曲线呈圆顶形抛物线，生物量粒径谱线从春季到冬季总体上由高到低排列，冬季受到的外界干扰最小。在区域分布方面，高村、东阿和高青地区鱼类的峰值粒径等级均对应于16 - 32克的粒径等级，主要以 和 等小型鱼类为主。相比之下，河口区域的峰值粒径等级对应于512 - 1024克，主要包括 、 和 等大型鱼类。四个区域标准化生物量粒径谱的差异不显著，但河口区域的曲率最高，表明受到的外界干扰最小。丰度 - 生物量比较（ABC）曲线表明，黄河山东段的鱼类群落处于严重受扰状态。
