Clupeiformes

(redirected from Clupeomorpha)

Clupeiformes

[‚klü·pē·ə′fȯr‚mēz]
(vertebrate zoology)
An order of teleost fishes in the subclass Actinopterygii, generally having a silvery, compressed body.

Clupeiformes

 

an order of bony fishes. The body is usually silvery and laterally compressed. The pectoral fins are placed low, and the ventral fins are usually in the middle of the abdomen. There is a single, spineless dorsal fin. The fishes usually range in length from 5–6 to 60 cm and in weight from a few grams to 0.5 kg. Only a few species reach a length of 2–2.4 m. The scales are cycloid.

The order contains 15 suborders, embracing about 50 families. Amont the more important families are Clupeidae (herring), Engraulidae (anchovies), Salmonidae (trout), Thymallidae (graylings), Osmeridae (smelts), Daliidae (with the single species Dallia pectoralis), Chanidae (milkfishes), Esocidae (pikes), and Arapaimidae (with the single species Arapaima gigas). Some ichthyologists place a number of families into separate orders (for example, the orders Isospondyli and Haplomi).

The fishes of the order Clupeiformes are distributed in many seas and in some brackish and fresh waters. They are extremely important in commercial fishing, making up as much as one-fifth of the world’s fish catch.

REFERENCES

Promyslovye ryby SSSR: Opisaniia ryb (text to atlas). Moscow, 1949.
Zhizn’zhivotnykh, vol. 4, part 1. Moscow, 1971.
Nikol’skii, G. V. Chastnaia ikhtiologiia, 3rd ed. Moscow, 1971.
References in periodicals archive ?
According to these molecular analyses, the Alepocephaloidea is the sister-groups of either the Clupeomorpha or the Ostariophysi, but not of the Argentinoidea.
These latter authors argue that the results of their analyses do not directly contradict the results of most morphological cladistic analyses, as these morphological analyses almost never included, in a same matrix, representatives of the Clupeomorpha, of the Ostariophysi, of the Alepocephaloidea, and of other teleostean taxa to which these three groups should be compared.