STELLER SEA LION RESEARCH
why did they decline?

Steller sea lion research

Consortium Researchers undertake studies to test the leading hypotheses thought to explain the decline of Steller sea lions.  These include:

  • Predation―Are killer whales responsible for the decline of Steller sea lions?
  • Overfishing―Reductions in Quantity of PreyDid fishing reduce the abundance of prey and cause food shortages for sea lions? Is there a relationship between fishing effort and the decline of sea lions?
  • Ocean Climate Change ―Reductions in Quality of PreyDid wide-scale climate changes negatively affect sea lion numbers by increasing the amounts of nutritionally poor species in their diets?
  • Other Factors―Did disease, human disturbance, or pollution contribute to the decline?

 

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Why did they decline?
We undertake studies to test the leading hypotheses thought to explain the decline of Steller sea lions. [more]
Nutritional Stress?
[more]
New Technologies
  • Trained Steller sea lions test hypotheses and develop new approaches
[more]
Sea lion biology and ecology
Information about the ecology, biology, physiology, behaviour and population dynamics of sea lions is needed to resolve why sea lions have declined. [more]