Cetaceans and salmon farming: Challenges for the conservation of marine biodiversity in Chilean Patagonia (executive summary)

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2025

In 2018, the environmental organizations Interamerican Association for Environmental Defense (AIDA), Greenpeace, and the NGO FIMA joined forces to confront the threat of the expansion of salmon farming in the southern waters of Chilean Patagonia. Since then, we have been actively working to expose and stop the impacts of intensive salmon production in pristine ecosystems, including special protected areas. 

In 2021, a scientific study of whale-ship interactions in Chilean Patagonia was published, including a video of a blue whale navigating a high-traffic area. According to the study, the world’s largest and most endangered mammal shares space with up to 870 vessels daily in Chilean Patagonia, one of its main feeding grounds. The study confirmed that 83% of the vessels were involved in the aquaculture industry.

This finding shed light on a new facet of the environmental issues facing Chilean Patagonia, home to nearly 30% of the world’s cetacean species, including the endemic Chilean dolphin. This led us to commission a scientific report from a multidisciplinary team of experts to make the information publicly available.

 

 

 

The results provided evidence of the impacts of salmon farming on cetaceans in Chilean Patagonia and highlighted the lack of studies and information needed to understand the magnitude and consequences of these impacts, as well as the true risk involved.

In addition to complementing the efforts of civil society to demonstrate the urgency of halting the expansion of salmon farming in the country’s southern seas, we hope that this report will specifically draw attention to the real and potentially irreversible problem affecting these emblematic species. 

We also hope that the report’s recommendations will encourage the development of conservation measures for cetaceans, even in a context of insufficient knowledge, in accordance with the Precautionary Principle — recognized in the General Fisheries and Aquaculture Law, national legislation, and international law — which establishes the obligation to act in favor of environmental protection, even in the face of uncertainty. Finally, we hope that this report will motivate further research necessary to implement concrete and effective protective measures to make our waters a safe space for whales and dolphins

Read and download the executive summary