The Hidden Crisis of Common Dolphins in the Bay of Biscay
- 演化之聲
- Mar 14
- 5 min read
Over the past two decades, dolphins in the Bay of Biscay off the coast of France have continued to appear abundant at sea, and population estimates have not shown an obvious decline. Yet recent research has revealed a long-overlooked crisis: their lifespan is rapidly shortening. A research team from La Rochelle University and international collaborators has reported that the most common dolphin species in the Northeast Atlantic, the common dolphin (Delphinus delphis), is experiencing what can be described as a “longevity collapse.” Within just twenty years, the average lifespan of these dolphins has fallen from 24 years to 17 years. Such a change signals a serious reduction in the population's survival capacity and reproductive potential.
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