Moxostoma erythrurum

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Moxostoma erythrurum
Moxostoma erythrurum.jpg

Moxostoma erythrurum

Systematics
without rank: Otophysa
Order : Carp-like (Cypriniformes)
Subordination : Catostomoidei
Family : Suckers (Catostomidae)
Genre : Moxostoma
Type : Moxostoma erythrurum
Scientific name
Moxostoma erythrurum
( Rafinesque , 1818)

Moxostoma erythrurum is a carp fish from the sucker carp family that is endemic to North America. There is a freshwater Canadian provinces Ontario and Manitoba living species of fish into the Midwest of the United States is widespread.

distribution

Moxostoma erythrurum lives in slow-flowing or stagnant waters with sandy to muddy bottoms, in small to large rivers and lakes and is widespread in North America. It occurs in Mississippi , Ohio and Missouri and in the Great Lakes such as Lake Superior and Lake of the Woods in Canada . There it can be found in rivers that flow into Hudson Bay . In the south, the species is found in rivers that drain into Mobile Bay in Alabama , Georgia, and Tennessee . An isolated population of Moxostoma erythrurum has been found in southwest Mississippi state . In 1953 the species was introduced into the Potomac River system in Maryland , Virginia and West Virginia , but the first fish did not reappear until 1971. It is also found in the Texas Red River . Moxostoma erythrurum occurs in various forms of water: streams, rivers, brooks, reservoirs or lakes with adjacent rivers. Compared to other sucker carp , Moxostoma erythrurum does not make any special demands on the water and can hold its own even in extreme environmental conditions.

features

Moxostoma erythrurum can be up to 78 centimeters long and up to five kilograms. The heaviest fish caught so far weighed over four kilograms and were over 70 centimeters long and came from the Muskegon River / Michigan and Bull Creek in the USA. The reddish gold color on the flanks gave the fish its name. The back is usually olive green, the belly side white and the fin gray. With the help of their streamlined body, they can also stay in fast-flowing water. The mouth of M. erythrurum is subordinate. They have 39-42 scales on their sidelines, which can register vibrations from their surroundings.

Way of life

Moxostoma erythrurum takes in food from the ground, such as small animals, crabs, detritus, algae or small mollusks. The spawning season takes place in spring. The animals become sexually mature at the age of three to five years and reach a maximum age of eight to 11 years. The spawning process takes place in water heated to 17-22 ° C, usually in the months of April to May. This can vary greatly locally. Moxostoma erythrurum spawns preferentially in oxygen-rich water, such as. B. in rapids, some specimens also migrate to better protected backwaters. The fry form large schools and search the bottom of the water for food. Some swarms also form from different Catostomida species.

Economical meaning

As a sport fish, Moxostoma erythrurum has a certain economic importance. Mostly they are caught in spring as bycatch when fishing for catfish.

Web links

Notes and individual references

  1. a b c Moxostoma erythrurum on Fishbase.org (English)
  2. ^ Fishing World Records