Why does the southern right whale choose the area of Peninsula Valdés?

People watching a whale on a boat tour in Puerto Piramides.

The southern right whale (Eubalaena australis) chooses the Peninsula Valdés area as a key breeding and calving ground due to several environmental and biological factors that provide optimal conditions for their survival.

1. Calm and Protected Waters

  • The Golfo Nuevo and Golfo San José offer sheltered bays with minimal wave activity and currents, creating a safe environment for mothers and their calves.

  • These calm waters reduce energy expenditure for both mothers and newborns, which is crucial for their early development.

 

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2. Ideal Temperature and Salinity

  • The water temperature in Peninsula Valdés is warmer than the open ocean, which is beneficial for newborn calves that lack thick blubber at birth.

  • The salinity levels provide a buoyant environment, making it easier for the whales to float and nurse.

 

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Whales in Peninsula Valdes map

 

3. Shallow Depths

  • The bays around Peninsula Valdés are relatively shallow, allowing the whales to rest, nurse, and bond with their calves in a predator-free environment.

  • This also makes it easier for calves to surface for air, reducing the risk of exhaustion.

4. Low Presence of Predators

  • Unlike open waters, where orcas (killer whales) are more active hunters, Peninsula Valdés provides a safer environment for young whales.

  • The geography of the peninsula makes it harder for predators to reach newborn calves.

 

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5. Historical and Biological Site Fidelity

  • Southern right whales exhibit strong site fidelity, meaning that mothers who were born in Peninsula Valdés tend to return to the same place to give birth.

  • This behavior has been passed down for generations, reinforcing the Peninsula Valdés breeding tradition.

6. Conservation Efforts & Legal Protection

  • Peninsula Valdés is a UNESCO World Heritage Site, meaning strict conservation laws protect the whales from human threats.

  • Commercial whaling in Argentina was banned decades ago, allowing the southern right whale population to recover in this region.

 

When and How to See Them?

  • The best time to see the whales in Peninsula Valdés is from June to December, with peak calving activity between September and October.

  • Puerto Pirámides is the only town authorized for whale-watching boat tours, offering close encounters with these gentle giants.

 

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Ramiro Rodriguez

25 years working in travel market, as Sales & Marketing Manager in RipioTurismo, Marketing Manager in Nuevas Ideas Travel Consulting Group. Writer and travel lover.

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