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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.
Thymallus, commonly known as graylings, is a genus of freshwater ray-finned fish and the only genus within the subfamily Thymallinae of the family Salmonidae.Although all Thymallus species can be generically called graylings, without specific qualification the term "grayling" typically refers to the type species Thymallus thymallus, the European grayling.
The Mongolian grayling (Thymallus brevirostris) is a freshwater species of fish of the genus Thymallus endemic to the landlocked rivers in Mongolia, Inner Mongolia Province of China and nearby parts of Russian far east. It is considered to be the largest grayling species in the world, [2] and hence viewed as an auspicious sign by local tribes. [3]
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.
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. Westslope cutthroat trout and fluvial arctic grayling were planted in the ...
The Fly-Fisher's Entomology, Illustrated by Coloured Representations of the Natural and Artificial Insect and Accompanied by a Few Observations and Instructions Relative to Trout-and-Grayling Fishing, first published in 1836 by Alfred Ronalds (1802–1860), was the first comprehensive work related to the entomology associated with fly fishing.
Although members originally fished for all sorts of fish (the society's crest still represents the head of a pike), the society now concentrates on fishing for brown trout and grayling with upstream dry fly or unweighted nymph imitations dressed lightly in the style of G. E. M. Skues. [citation needed] The Society has, at its core, three key ...
Thymallus baicalensis, also known as the Baikal black grayling, is a Siberian freshwater fish species in the salmon family Salmonidae. Thymallus baicalensis occurs in Lake Baikal , in the inflowing Selenga River and throughout the major Enisei River drainage, and also some eastern tributaries of the Ob River .