COMPARATIVE BIOMORPHOLOGY OF THE SKELETON OF PAIRED FINS OF CYPRINIFORMES AND PERCIFORMES
Abstract
It is known that fishes are the most numerous vertebrates on our planet. Their anatomy has many unclear issues. In particular, the paired fins, homologues of limbs, have not only different location on the body of fishes, but alsodifferent structure which depend on the order or specie of fish, as well as their way of life in the aquatic environment.
The article presents biomorphological research of bones of pectoral and pelvic fins of various representatives of Cypriniformes and Perciformes, the most species–rich orders of bony fish. Among Cypriniformes the following species were investigated: Prussian carp (Carassius gibelio), common carp (Cyprinus carpio), common roach (Rutilus rutilus), among Perciformes – Eurasian ruffe (Gymnocephalus cernuus), European perch (Perca fluviatilis), andzander (Sander lucioperca). A detailed description of bones that form pelvic and pectoral girdles within the orders and individual species is given. Morphometric studies of the paired fins’ skeletons were carried out and analyzed as well. It was found that the skeletons of pectoral and pelvic fins consist of bones, which have characteristic structural features. Knowing these features can be useful for determination of fish species, and also it can serve a basis for future comparative biomorphological studies.
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References
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