Peer Review Plan: Species Status Assessment Report for Upper Missouri River Arctic Grayling (Thymallus arcticus) Distinct Populations Segment (DPS)

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A lake abuts green grass, in the background are small mountains
The Mountain-Prairie Region consists of 8 states in the heart of the American west including Colorado, Kansas, Montana, Nebraska, North Dakota, South Dakota, Utah and Wyoming. The region is defined by three distinct landscapes. In the east lie the central and northern Great Plains, primarily the...
Piping plover adult and chick on beach
The Montana Ecological Services Field Office coordinates with federal and state agencies, local governments, private and non-governmental organizations, and tribes to conserve, protect, and enhance fish, wildlife, plants, and their habitats within the state of Montana for the continuing benefit of...
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A rocky shoreline of a river. The water is calm. Mist and green branches line the river.
The Ecological Services Program works to restore and protect healthy populations of fish, wildlife, and plants and the environments upon which they depend. Using the best available science, we work with federal, state, Tribal, local, and non-profit stakeholders, as well as private land owners, to...
Species
An arctic grayling showing large, sail-like dorsal fin and colorful body markings.

Arctic grayling (Thymallus arcticus) is a freshwater fish in the same family (Salmonidae) as salmon, trout, and whitefish. A distinctive morphological characteristic of this fish is its large, sail-like dorsal fin. Arctic grayling is an obligate cool- or cold-water species....

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