Flora and Fauna Vista del Lago from Victoria Island. The Andean Patagonian forest on the lakeshore. Lake shores are populated by plant species such as myrtle damp and pataguas, semipalustres trees that are part of the Andean Patagonian forest. On the cliffs of some islands of Lake Nahuel Huapi there is an imperial cormorant population, made curious since it is a mainly marine species. It is also common to find the exotic gull cook following the boats. The dove araucana (Columba araucana) is categorized as “threatened” for having fallen prey to an infectious disease transmitted by domestic birds. However, it is estimated that a broad recovery. The Park warm seasons to attract certain birds to stay seasonal, as the trust-trust, the mandolin or cauquenes.A typical species of the fauna of the region is the huillin, carnivorous mammal that has National Park in the main towns in Argentina. It is a native otter that inhabits the shores of lakes, lagoons, rivers and streams. His long body is covered in a brown coat with orange or red glare, and has short legs and long tail. The European pioneers and settlers introduced exotic species in order to embellish what they saw as an impoverished fauna of these environments. The introduction of trout fishing to beat back the native species, such as puy n (Galaxias maculatus), the native trout (Percichthys trout) and Patagonian silverside. For these reasons, fishing is allowed and regulated in different seasons authorized by the National Park Superintendency.