A PRELIMINARY INVESTIGATION ON SCREENING OF CHINESE INDIGENOUS FISHES FOR ECOTOXICOLOGICAL TESTS IN CONTEXT OF CHEMICALS' ECOLOGICAL RISK ASSESSMENT AND MANAGEMENT

Spatial heterogeneity and ecological variation across habitats merit more attention from the perspective of ecological risk assessment and management of chemicals,which necessitates the development of ecotoxicological test organisms using indigenous fishes in China.In this paper,the ecological relevance of a fish was put forward in a sense of ecological substitutability with respect to its habitat coverage and characteristic biological temperature.Meanwhile,body length,hatching duration,and water temperature requirement were synthesized to represent ecotoxicological feasibility.The combination of ecological relevance and ecotoxicological feasibility was employed to indicate possibility of certain Chinese indigenous fishes to be candidate test organisms.In addition,uncertainty in defining feasibility was evaluated by simulation.This investigation was deemed helpful to sharpen the efforts to develop Chinese indigenous test organisms and to improve the environmental relevance of chemoecological risk assessment and management in China.