How to Follow a Fish

The tools researchers use to track their scaly subjects.

RELATED TAGS: ECOLOGY, ANIMALS, GADGETS
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1. Jaw tags: Researchers use these external tags, about the size of a quarter, to identify whether a fish has an internal tracker implanted in it. It’s usually fit onto a fish’s lower mandible. 2. Pop-up satellite archival tag: This external tag collects detailed data on fish vitals, location and environmental information, such as light levels. 3. Acoustic transmitter: Internal or external tag that’s ideal for tracking fish in deeper water. These transmitters produce a uniq...
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