halpusztulás betyr engelsk

fish kill [fish kills]▼◼◼◼noun
[UK: fɪʃ kɪl] [US: ˈfɪʃ ˈkɪl]

fish die-off▼◼◼◼noun
[UK: fɪʃ daɪ ɒf] [US: ˈfɪʃ ˈdaɪ ˈɒf]