ELECTROPHORETIC IDENTITY BETWEEN ALLIS SHAD, ALOSA-ALOSA (L), AND TWAITE SHAD, A-FALLAX (LACEPEDE)

被引:32
|
作者
BOISNEAU, P
MENNESSONBOISNEAU, C
GUYOMARD, R
机构
[1] INRA,GENET POISSONS LAB,DOMAINE VILVERT,F-78350 JOUY EN JOSAS,FRANCE
[2] INRA,ECOL HYDROBIOL LAB,F-35042 RENNES,FRANCE
关键词
ALOSA-ALOSA; A-FALLAX; ENZYME POLYMORPHISM;
D O I
10.1111/j.1095-8649.1992.tb02620.x
中图分类号
S9 [水产、渔业];
学科分类号
0908 ;
摘要
Morphological characteristics as well as electrophoretic polymorphism have been analysed in eight samples of allis shad, Alosa alosa (L.) and twaite shad, Alosa fallax (Lacepede), collected in the Loire basin and the Gironde‐Dordogne system. The morphological characteristics showed that allis and twaite shad were present in these samples. Moreover, specimens with intermediate characteristics were found in the Loire and assumed to be hybrids between the two forms. By contrast, the two species were monomorphic and electrophoretically indistingishable at the 22 loci analysed. Therefore, it cannot be excluded that these two forms correspond to a single species. Copyright © 1992, Wiley Blackwell. All rights reserved
引用
收藏
页码:731 / 738
页数:8
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