Salmo ischchan
Photo: Wikimedia Commons (CC) via https://en.wikipedia.org/wiki/Sevan_trout
Overview
A detailed profile for this species is sourced from the IUCN Red List of Threatened Species as assessments become available.
Salmo ischchan faces severe population decline primarily due to overfishing and the introduction of non-native fish species that compete for resources and prey on juveniles. Dam construction and water diversions have significantly altered the natural flow regimes of Lake Sevan, disrupting spawning migrations and reducing available spawning habitat. Water pollution from agricultural runoff and urban development has degraded water quality, while climate change-induced temperature increases threaten the cold-water requirements of this endemic trout.
Habitat
Salmo ischchan is endemic to Lake Sevan in Armenia, inhabiting the cold, oligotrophic waters of this high-altitude alpine lake at approximately 1,900 meters elevation. The species requires clean, well-oxygenated waters and historically migrated to tributary streams for spawning, though dam construction has severely limited access to these critical breeding habitats.
