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Whale Calf Mystery: Dozens Dead on Patagonian Coast
3 Oct
Summary
- Unusual numbers of dead whale calves are washing ashore.
- Infections from kelp gull injuries are the leading hypothesis.
- Climate change may be a contributing factor to the deaths.
Investigators in Argentina are seeking to understand why an unusually high number of baby whales are washing ashore on the Patagonian coast. Scores of calf carcasses have been found near Peninsula Valdes, a critical breeding area for southern right whales in Chubut province.
Researchers suspect infections from marine bacteria are the primary cause of death. These bacteria may enter the calves' bodies through injuries inflicted by kelp gulls, seabirds known to peck at surfacing whales. Calves, unlike adults, cannot avoid these attacks.
The investigation is examining potential contributing factors, including changes in marine conditions like warming sea temperatures, which could be linked to climate change or El Nino. Such environmental shifts might weaken the calves' immunity, making them susceptible to severe infections.
Finding the cause is crucial for the long-term recovery of the southern right whale population. If losses continue on this scale, it could hinder their progress. Researchers aim to identify triggers for this massive die-off to implement conservation strategies and prevent future endangerment.
