Premium
Some meristic characteristics of hybrids between Acipenser naccarii and Acipenser baerii.
Author(s) -
Arlati G.,
Hernando J. A.,
PoliakovaBelysceva L. A.,
Soriguer M. C.
Publication year - 1999
Publication title -
journal of applied ichthyology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.392
H-Index - 62
eISSN - 1439-0426
pISSN - 0175-8659
DOI - 10.1111/j.1439-0426.1999.tb00206.x
Subject(s) - meristics , biology , sturgeon , hybrid , acipenser , fishery , zoology , fish <actinopterygii> , botany
Summary The aim of this study was to describe meristic characters of hybrid Acipenser naccarii × A. baeri, to be used as the basis for characterizing hybrid specimens in a complementary manner to as described for,4. naccarii by Hernando et al. (1999). Thirty 2+ and 3+ year class individuals from the Region of Lombardy (Italy) were analysed for eight morphological variables (Soljan 1975; Holcick et al. 1989), and weight. Three indices, viz the relative position of barbels (CA), the ratio of snout width to length (FB) (Garrido‐Ramos et al. 1997), and the Soljan index (Hernando et al. 1999), were used to characterize hybrids. A descriptive analyses of variables, simple and multiple regression analysis, and principal components relationships, were calculated. The relationships between Tl and the indices was described using a stepwise multiple regression analysis: Tl=33.32 ‐ 0.26 CA + 10.49 FB + 74.45 SOU (F=1.96; Df = 3).