Ecological Risk Screening Summary - Caucasian Bleak (Alburnus escherichii) - Uncertain Risk

Species that are considered uncertain risk need a more in-depth assessment beyond the Risk Summary to better define the species’ risk to U.S. environments.

Alburnus escherichii, Caucasian Bleak, is a freshwater fish species native to Turkey in the Sakarya river drainage and Kizilirmak river. Alburnus escherichii has been reported as introduced in Lake Beyşehir basin in Central Anatolia, and in the Manavgat river in the Mediterranean basin; only the former location is known to have an established population and there is no information on whether there were impacts from the introduction. The history of invasiveness is classified as Data Deficient. The climate match for the contiguous United States is High. Most of the contiguous United States had a high to medium match with areas of highest match found in the Intermountain West. The certainty of assessment is Low due to a lack of information on impacts of introduction. The overall risk assessment category for Alburnus escherichii is Uncertain.

Publication date
Type of document
Uncertain Risk
Program
A man is fishing in a boat with three young girls. The kids are excitedly pulling a fish out of the water.
Healthy fisheries and waters are the foundation of America’s outdoor traditions and give us the freedom to fish, boat, and enjoy the benefits of outdoor recreation. The Fish and Aquatic Conservation programs work with states, tribes, and communities to provide a comprehensive approach to freshwater...
Silver Carp Jumping
Aquatic invasive species cause tremendous harm to our environment, our economy, and our health. They can drive out and eat native plants and wildlife, spread diseases, and damage infrastructure. We work to protect our waterways and the communities that depend on them from the threat of invasive...
Subject tags
Invasive species
Fishes