Fish stocking in Lake Michigan,USA. A technician is monitoring oxygen levels in a tank holding young trout (Salmo sp.) as they are transported to the release site. Fish stocking is a practice used to supplement fish populations or to introduce new ones. Young fish are raised in a hatchery then released into the wild | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / West, Jim |
Bildgröße: | 3653 px × 2411 px |
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Eigentums-Rechte: | nicht erforderlich |
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