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Vegetation at the river mouth combines riparian and coastal species, with a predominance of reeds, cattails, and halophytic grasslands adapted to the ocean’s saline influence. In higher areas, shrubs such as calafate and chañar can be found, along with species typical of the surrounding Patagonian steppe. This plant diversity helps maintain a balanced ecosystem that supports local wildlife.
The mouth of the Río Negro is an important area for local wildlife, especially for migratory and resident birds. Species such as herons, gulls, sandpipers, and other coastal birds can be observed, as they find feeding and resting areas within this ecosystem. In addition, the area is home to small mammals and reptiles adapted to riverine and coastal environments.
