Studies on the biology and exploitation of abramis brama 乌伦古湖东方欧鳊的生物学及开发利用研究
2.
Russia had repeatedly warned the initiators of the military action against iraq of the obvious probability of such a dangerous evolution of the situation . in particular , this was referred to in the statement of the president of the russian federation of march 20 , 2003 水中有捕捞价值的鱼类非常丰富：在淡水海湾欧鳊、梭鲈、胡瓜鱼、鳗鱼；在海中波罗的海鲱、棱鲱、胡瓜鱼、鲑鳟鱼。
3.
Multivariate morphometrics was conducted on the endemic asian genus sinibrama wu , 1939 in east asia in order to investigate the morphological variations among the 4 nominal species and subspecies known from south china . principal component analysis ( pca ) was performed respectively for seven meristic and thirty - two morphometric characters that were based on 224 specimens 运用多变量形态度量学方法，研究东亚特有鱼类类群?华鳊属鱼类的形态差异，对其在分类学上存在疑问的物种的不同地理居群的18个框架测量距离、 14个常规测量距离和7个可数性状进行了主成分分析。
4.
Phylogenetic relationship of the sinibrama species was reconstructed using the cladistic method and morphological characters . c . monglicus monglicus , a . lini , p . pekinensis and m . terminalis were selected as out - group . and a total of 34 morphological characters were found variable among four valid species 用分支系统学方法，重建华鳊属鱼类的系统发育关系，运用外类群比较法，选择蒙古? 、大眼近红? 、鳊和三角鲂为外类群，对34个形态学性状进行了简约性分析。
5.
All these characters were parsimoniously analyzed using paup4 . 0 . mitochondrial dna cytochrome b gene was adopted to discuss the sequences variations among the populations of sinibrama species and used to reconstruct the phylogenetic relationships between the genus sinibrama and some related cultrinae genera . on the basis of the analytical result , the hypothesized relationship of cultrinae by previous authors were testified 运用线粒体dna细胞色素b基因序列对华鳊属及其相关类群进行了系统发育重建，以探讨华鳊属鱼类不同地理居群的cytb序列变异及与其他相关类群的系统发育关系，并验证前人的一些研究结果。
