Threats

Dolphins and whales face an uncertain future as they face an unprecedented number of threats. Most of these threats are unfortunately a result of human activities. Globally, 26 cetacean species and 35 subspecies or populations are listed as Near Threatened, Vulnerable, Endangered or Critically Endangered (IUCN). This number continues to rise each year.

For full details refer to: https://www.iucnredlist.org

Major threats include:

• Fisheries bycatch (including in fishing gear including drift nets). Dolphins must rise regularly to the surface to breathe, becoming entangled in nets prevents this, leading to drowning

• Overfishing

• Pollution (chemical and debris/litter)

• Global climate change –

  • Causing some primary food sources to move into deeper, cooler water.

  • Marine heatwaves, appear to have a negative effect on dolphins' reproductive rates and ability to survive.

• Tourism activities (includes vessel-based whale & dolphin watching)

• Boat strikes

• Noise pollution (which includes; vessels, LFA & MFA Navy Sonar)

• Habitat loss & degradation (e.g. through urban development)

• Whaling & hunting

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