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Morphological comparisons of diploid and triploid hybrid grass carp, Ctenopharyngodon idella ♀× Hypophthalmichthys nobilis ♂
Author(s) -
Cassani J. R.,
Caton W. E.,
Clark B.
Publication year - 1984
Publication title -
journal of fish biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.672
H-Index - 115
eISSN - 1095-8649
pISSN - 0022-1112
DOI - 10.1111/j.1095-8649.1984.tb04875.x
Subject(s) - biology , grass carp , ploidy , fish <actinopterygii> , zoology , cyprinidae , fishery , genetics , gene
Morphological and karyological comparisons of 25–28 hybrid grass carp from each of 3 year‐classes (1979–1981) indicated that diploid fish resulted during 1979 (82.1%) and 1980 (76.0%) the others being triploid. All of the fish tested from the 1981 year‐class were triploid. Most triploid fish differed from diploid fish by having a faster growth rate, fewer scales in the lateral line and transverse series below the lateral line, a relatively longer gut, and fewer deformities.