Loading metrics Open Access Peer-reviewed Research Article Citation: Chi R, Da Y, Li W, Wen D (2026) Intelligent diagnosis method for river and lake ecosystem health based on improved slime mold algorithm-optimized SVR. PLoS One 21(1): e0340418. https://doi.org/10.1371/journal.pone.0340418 Editor: Babak Mohammadi, Swedish Meteorological and Hydrological Institute, SWEDEN Received: October 11, 2025; Accepted: December 19, 2025; Published: January 21, 2026 Copyright: © 2026 Chi et al.