Application of WPBL Model in Ichthyology Experimental Teaching: A Practice-Based Approach Using Morphometric Measurement and Classification of Indigenous Fish Species in Southern

Traditional ichthyology laboratory courses in Chinese universities rely on preserved specimen observation and single-skill demonstrations, leaving students with limited exposure to authentic research practices. This study examines how a Work-based Project-Based Learning (WPBL) framework can be applied in ichthyology experimental teaching, using morphometric measurement and taxonomic classification of southern indigenous fish as the core practical activity. The study proposes a WPBL framework organized around three elements: real-work driving problems, project-based inquiry, and vocationally oriented assessment. A four-phase teaching design is developed, centering on Triplophysa yarkandensis and Schizothorax biddulphi, selected for their ecological importance within the Tarim River basin and accessibility for classroom use. The proposal incorporates both conventional linear morphometric procedures and landmark-based geometric morphometric analysis, supported by phylogenetic data on basin-endemic schizothoracine fishes. Feasibility analysis indicates that institutional resources at Tarim University are sufficient to support this design. The study acknowledges that no implementation data currently exist, and empirical validation through pilot trials remains necessary.