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Chinese Journal of Ecology ›› 2023, Vol. 42 ›› Issue (8): 2040-2048.doi: 10.13292/j.1000-4890.202308.021

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Assessment of a cold temperate mountain river based on the benthic macroinvertebrate-based index of biotic integrity: A case of Huma River.

DOU Qianming1,3,4, WANG Huibo1,3,4, SONG Dan1,2,3,4, DU Xue1,3,4, WANG Le1,3,4, HUANG Xiaoli1,3,4, ZHAO Chen1,3,4, HUO Tangbin1,3,4*#br#

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  1. (1Key Laboratory of Aquatic Organism Protection and Ecological Restoration in Cold Waters, Heilongjiang River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Harbin 150010, China; 2National Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; 3Heilongjiang River Basin Fishery Ecological Environment Monitoring Center, Ministry of Agriculture and Rural Affairs, Harbin 150010, China; 4Heilongjiang River Basin Fisheries Ecology Observation and Research Station of Heilongjiang Province, Harbin 150010, China).

  • Online:2023-08-10 Published:2023-07-27

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Abstract: Based on the data of benthic macrobenthos and water physicochemical indices of 25 sampling points (9 reference points and 16 disturbed points) in Huma River, the benthic index of biotic integrity (B-IBI) was deve-loped to evaluate the health of mountain river in the cold temperate zone. According to the distribution range, discriminant ability, and the correlation analysis of 27 biological indicators, the final B-IBI system was composed of the relative abundance of Plecoptera individuals, the relative abundance of EPT (Ephemeroptera, Plecoptera, Trichoptera) individuals, the relative abundance of sensitive taxa individuals, the biotic index  (BI), and the relative abundance of shredder individuals. The ratio method was used to unify the index dimensions. The 25% quantile of the B-IBI value distribution at the reference points was used as health evaluation standard. The results showed that eight out of the 25 sampling points were healthy, and the number of points with status of sub-healthy, fair, poor, and very poor was 8, 6, 2, and 1, respectively. The B-IBI system showed that the health status of the Huma River was generally good. The health status of the trunk stream from good to bad was: upstream, midstream, and downstream. Among tributaries, Ganbu River, Walagan River, Daxiluga River, Aokusakaai River and Xilinixi River were at healthy status; Tahe River, Xiaoxiluga River and Wolegen River were at sub-healthy status; Muwulu River and Manlakai River were at fair status; and Hailai River and Taha River were at poor status. Results of Pearson correlation analysis showed that the B-IBI value was significantly positively correlated with dissolved oxygen content and negatively correlated with ammonia nitrogen content (P<0.05). Results of redundancy analysis showed that the B-IBI system had a high degree of explanation for environmental factors. The B-IBI system based on the Huma River was suitable for health assessment of cold temperate mountain rivers in China.


Key words: benthic macroinvertebrate-based index of biotic integrity (B-IBI), cold temperate mountainous region, health assessment, environmental factor, Huma River.