T & E is an acronym for threatened and endangered.
These are both status metrics for risk of extinction. Endangered species are considered on the “brink of extinction” throughout their range and threatened species are likely to become endangered in the near future.
The species that are on this list in the United States receive certain protections under the Endangered Species Act of 1973 which recognizes the “esthetic, ecological, educational, historical, recreational, and scientific value [of these species] to the Nation and its people.” The U.S. Fish and Wildlife Service (USFWS) and the National Oceanic and Atmospheric Administration (NOAA) are mandated to protect the T & E fish species, such as Atlantic Salmon (Salmo salar), among other aquatic and terrestrial species that fall under their jurisdictions.