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The Montana Arctic grayling (Thymallus arcticus montanus) is a North American freshwater fish in the salmon family Salmonidae.The Montana Arctic grayling, native to the upper Missouri River basin in Montana and Wyoming, is a disjunct population or subspecies of the more widespread Arctic grayling (Thymallus arcticus). [5]
The scientific name of the Arctic grayling is Thymallus arcticus.It was named in 1776 by German zoologist Peter Simon Pallas from specimens collected in Russia. The name of the genus Thymallus first given to grayling (T. thymallus) described in the 1758 edition of Systema Naturae by Swedish zoologist Carl Linnaeus originates from the faint smell of the herb thyme, which emanates from the flesh.
The Mongolian grayling is omnivorous and lives predatorily at certain times of the year. During the summer months, it inhabits mountain rivers and lakes at all depths. [8] In autumn and winter, it forms large shoals in front of the estuaries in lakes before spawning. It can only reproduce in cold, oxygen-rich water below temperatures of 20°C.
The grayling grows to a maximum recorded length of 60 cm (24 in) and a maximum recorded weight of 6.7 kg (15 lb). Of typical Thymallus appearance, the grayling proper is distinguished from the similar Arctic grayling (T. arcticus arcticus) by the presence of 5–8 dorsal and 3–4 anal spines, which are absent in the other species; T. thymallus also has a smaller number of soft rays in these fins.
New Jersey's winter temperatures were milder than average, according to Rutgers' professor and state climatologist, Dave Robinson, who compiled a winter report in March 2024.
Maps showing National Oceanic and Atmospheric Administration's temperature forecast for winter 2024-25. So overall, the National Weather Service's outlook is for above-average precipitation and ...
NOAA's 2024-25 winter forecast maps show what to expect in Oklahoma. Gannett. Josh Kelly, The Oklahoman. October 14, 2024 at 3:30 AM. Oklahoma will see a slightly warmer winter than years past ...
Grebe Lake used to hold both lacustrine arctic grayling and rainbow trout. In 2017, the NPS embarked on a three-year fish restoration project in the upper Gibbon river watershed to remove all non-native trout and grayling. Grebe lake and its tributaries were poisoned with rotenone in the summer of 2017 to remove the grayling and rainbow trout.