Yersinia ruckeri

**Definition:** A species of gram-negative bacteria responsible for red mouth disease in rainbow trout (ONCORHYNCHUS MYKISS). The bacteria is a natural component of fresh water ecosystems in the United States and Canada.

**Tree numbers:** - B03.440.450.425.900.650 - B03.660.250.150.950.650

**Synonyms:** - Yersinia rucker