A pilot macroinvertebrate-based multimetric index (MMI-CS) for assessing the ecological status of the Chishui River basin,China |
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| Institution: | 1. Department of Zoology, Central University of Kashmir, Sonwar Campus, Srinagar, 190004, India;2. P.G. Department of Environmental Sciences, University of Kashmir, 190006, India;3. Centre of Research for Development, University of Kashmir, 190006, India;4. Department of Veterinary Medicine, GADVASU, Ludhiana, Punjab, India;1. University of Washington, School of Aquatic and Fishery Sciences, Box 355020, Seattle, WA, 98195, USA;2. Conservation Biology Division, Northwest Fisheries Science Center, National Marine Fisheries Service,2725 Montlake Blvd E, Seattle, WA 98112, USA;1. Fundação Oswaldo Cruz, Instituto Oswaldo Cruz, Laboratório de Avaliação e Promoção da Saúde Ambiental (LAPSA/IOC/FIOCRUZ), Av. Brasil 4365, Manguinhos, Pavilhão Lauro Travassos, Rio de Janeiro, RJ CEP 21040-360, Brazil;2. Fundação Oswaldo Cruz, Escola Nacional de Saúde Pública Sérgio Arouca (DSSA/ENSP/FIOCRUZ), Rua Leopoldo Bulhões 1480, Manguinhos, Rio de Janeiro, RJ CEP 21041-210, Brazil;1. State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, 210008, PR China;2. Southern Seas Ecology Laboratories, The Environment Institute, School of Biological Sciences, The University of Adelaide, South Australia, 5005, Australia;3. Faculty of Materials and Energy, Southwest University, Chongqing, 400715, PR China;4. Water Resources Planning Bureau of Jiangsu Province, Nanjing, 210029, PR China;5. Sino-Danish College, University of Chinese Academy of Sciences, Beijing, 100049, PR China;1. Department of Zoology, School of Biology, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece;2. The Goulandris Natural History Museum – Greek Biotope Wetland Centre (EKBY), 14th km Thessaloniki – Mihaniona, 57001 Thermi, Greece;1. University of Lomé, Faculty of Sciences, Laboratory of Applied Hydrology and Environment, BP1515 Lomé, Togo;2. University Vasile Alecsandri of Bacau, Faculty of Engineering, Department of Environment and Mechanical Engineering, Calea Marasesti 158, Bacau 600115, Romania;3. University of Joseph KI-ZERBO, Laboratory of Animals Biology and Ecology 03 BP 7021 Ouagadougou 03, Burkina Faso;4. University of Kara, Faculty of Sciences and Technology, Department of Chemistry BP 404, Kara, Togo |
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| Abstract: | As the only undammed river in the Yangtze River basin and an important rare fish reserve, the Chishui River has attracted the world's attention. It was recently selected as a reference river for a pilot biomonitoring assessment within the European Union-China River Basin Management Programme. As the outcome of the project, a pilot multimetric index (MMI-CS) was developed for future assessment of the ecological status of the Chishui River basin. In this study, eight core metrics were selected and used to build the multimetric system. These metrics included the total number of taxa (TotalTax), the number of taxa of sprawlers (SprwlTax), the number of intolerant taxa (IntolTax), the Hilsenhoff biotic index (HBI), the percentage of Ephemeroptera, Trichoptera and Plecoptera (EPTPct), the number of Ephemeroptera taxa (EphemTax), the percentage of collectors (CllctPct) and the average score per taxon (ASPT). Five ecological status ratings (“Excellent”, “Good”, “Fair”, “Poor” and “Very Poor”) were established. The results of the evaluation showed that the index was reasonable and effective. The results of the assessment showed that sites with higher ecological status were distributed mainly in the upper and middle reaches of the region and that sites with lower ecological status were centrally distributed in the lower reaches. Moreover, the index should be refined and validated using additional datasets obtained in different seasons in the future for routine bioassessment within the framework of sustainable management. |
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| Keywords: | Macroinvertebrates Multimetric index Undammed river Functional process zones (FPZs) Routine bioassessment |
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