Photo-Identification Catalogs Track Individual Sei Whales Over Time

A single scar on a dorsal fin can help scientists recognize a whale years later.

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🤯 Did You Know (click to read)

Digital image databases allow researchers worldwide to compare sightings and confirm re-identifications.

Researchers compile photographic records of dorsal fins and body markings to monitor Balaenoptera borealis movements and estimate population size.

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💥 Impact (click to read)

Long-term catalogs reveal site fidelity, migration timing, and survival rates across different ocean basins.

These noninvasive techniques are central to modern marine mammal conservation science.

Source

NOAA Fisheries

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