A new method of tracking fish populations has been developed by researchers at the University of Washington. By tagging individual fish with small, trackable dots, the team is able to observe population trends in real time. This method offers a more accurate picture of population changes and provides a new way to monitor the health of fish populations. The dots are small, only a fraction of a millimeter in size, and can be applied to individual fish in a matter of minutes. Once the dots are attached, they provide a unique identifier to each fish and enable researchers to track its movements and survival rate. This new method could play an important role in helping researchers better understand and manage fish populations.

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source: Phys.org