中国鲤亚科鲫属鱼类一新亚种记述  

A New Fish Subspecies Description of China Carp Subfamily—Carassius

作　　者：杨品红[1,2] 

机构地区：[1]湖南省水产工程技术研究中心,湖南常德415000 [2]湖南文理学院生命科学学院,湖南常德415000

出　　处：《安徽农业科学》2011年第8期4747-4748,共2页Journal of Anhui Agricultural Sciences

基　　金：国家高新技术研究发展计划(2005A1899-01);湖南省"水生生物资源保护与利用"高校创新团队基金(2010-2012);湖南省重点科技攻关项目(2001Z002);湖南省自然科学基金(08JJ3029);湖南省"十一五"重点建设学科(动物学)基金;湖南省高校产学研示范基地项目--水生生物资源与利用(2008-2010)

摘　　要：2002年12月在湖南省澧县洞庭湖边缘化湖泊北民湖采集到鲫属鱼类21尾,经鉴定为1个新亚种。新亚种以背部青色,体长为体高的2.3～2.6倍,体长为头长的3.8～4.7倍,头长为眼间距的1.8～1.9倍,区别于银鲫C.auratus gibelio;侧线鳞29～33,体长为头长的3.8～4.7倍,头长为眼间距的1.8～1.9倍,脊椎骨数4+28—30,胸鳍末端不达腹鳍起点,区别于鲫C.auratus auratus;而以背鳍外缘平直或凹形,末根硬刺强,后缘锯齿粗而稀,区别于黑鲫C.carassius。新亚种以仅分布于湖南省澧县洞庭湖边缘化湖泊北民湖,背部、背鳍和臀鳍颜色均为青色等特征命名青鲫。A new subspecies of 21 Carassius fish genus has been recognized on the basis of collections from Beiming Lake in the edge of Dongtinghu Lake Li County of Hunan Province of China in December,2002.Carassius auratus indigentiaus subsp.nov.,it can be distinguished from Carassius auratus gibelio by indigotic back vs.silver-gray color,2.3-2.6 times the body length of body depth,3.8-4.7 times head length of body length,1.8-1.9 times the head length of eye spacing;it can be distinguished from Carassius auratus auratus by lateral line scales 29-33,3.8-4.7 times head length of body length,1.8-1.9 times the head length of eye spacing,the number of vertebrae is 4＋28—30,pectoral fin are not reach pelvic fin origin and can be distinguished from C.carassius by dorsal fin outflow boundary straight or concave shape vs.dorsal fin outflow boundary arc,end root hard thorn strong vs.end root hard thorn weak,after skirt denticle thick and thin vs.after skirt denticle small and dense.A new subspecies of genus is only distributed in Beiming Lake,in the edge of Dongting Lake of Li County of Hunan,and its back,dorsal fin and anal fin color is indigo,so names Carassius auratus indigentiaus subsp.nov.

关 键 词：鲫属 新亚种 北民湖 湖南 

分 类 号：Q959.468[生物学—动物学]