Juvenile Mortality Rates Influence Sei Whale Population Trends

The survival of young sei whales plays a decisive role in long-term recovery.

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Many baleen whale species depend on a single calf every few years, increasing the importance of each birth.

Calf survival during the first year of life is critical for Balaenoptera borealis populations, as slow reproductive cycles limit rapid population growth.

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💥 Impact (click to read)

Environmental variability, prey scarcity, and human disturbances can affect juvenile survival, influencing regional recovery trajectories.

Monitoring calf presence during surveys provides insight into reproductive success and ecosystem health.

Source

NOAA Fisheries

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