A large proportion of the 67 endangered species in Mar Argentino migrate or feed in the Yaganes area. Bycatch, overfishing and pollution are some of the threats in the area.
The different fishing gear, such as bottom trawling, also pose threats to the benthic species that inhabit the area.
The sei and minke whales, the dusky and hourglass dolphins, the wandering albatross and the magellanic penguin are some of the species which live and visit Yaganes. In addition, the area includes seabed organisms which act as indicators of vulnerable marine ecosystems and some rare species, slow to recover, such as cold water corals.
Many of these species are endemic, meaning their distribution is limited to this one single geographical area and they cannot be naturally found in any other part of the world.