摘要
本文对采捕的野生细鳞鱼的生物学特性及繁殖力进行了测定,结果表明:细鳞鱼可量比例性状为:全长/体长1.13±0.02,体长/体高4.86±0.30,体长/头长4.41±0.19,体长/尾柄长6.94±0.72,体长/尾柄高12.53±0.59,尾柄长/尾柄高1.82±0.17,头长/吻长3.36±0.31,头长/眼径5.41±0.52,头长/眼间距2.89±0.26;可数性状为:背鳍鳍式:II,11~13,胸鳍鳍式:I,15~19,腹鳍鳍式:I,9~12,臀鳍鳍式:II,10~14,侧线鳞:108~163,侧线上鳞:24~37,侧线下鳞:23~36,第一鳃弓鳃耙数:15~29,脊椎骨:57~61,肋骨:28~31,幽门垂:70~121。绝对繁殖力2823.25±1237.01,相对繁殖力3.20±1.79。
This article is about the detection of the biological characters and productivity of Brachymystax lenok. The results showed that the measurable characters ratios of Brachymystax/enok are as follows: total length/body length is 1.13±0.02,body length/body height is 4.86 ±0.30,body length/head length is 4.41±0.19 ,body length/tail stem length is 6.94 ± 0.72 ,body length/tail stem height is 12.53±0.59 ,tail stem length/tail stem height is 1.82 ±0.17, head length/kiss length 3.36 ± 0.31, head length/eye diameter is 5.41 ± 0.52,, head length/eye distance is 2.89 ± 0.26. And the countable characters are which the dorsal fin formula is 1I :11 - 13,the pectoral fin formula is Ⅰ, 15 -19,the ventral fin formula is Ⅰ ,9 ~ 12 ,the anal fin formula is -Ⅱ :10 ~14 ,the scale in lateral line is 108 -163, the scale above lat- eral line is 24 ~ 37, the scale below lateral line is 23 - 36, the number of first gill arch and raker is 15 ~ 29, the vertebra is 57 - 61, the costa is 28 - 31, the pyloric sac is 70 - 121. The absolute productivity is 2823.25 ± 1237.01 and the relative productivity is 3.20 ± 1.79.
出处
《水产学杂志》
CAS
2007年第1期69-73,共5页
Chinese Journal of Fisheries
基金
中国水产科学研究院基金项目
2003-3-3
黑龙江省科技攻关项目
GC03B511
关键词
细鳞鱼
生物学
繁殖力
Brachymystax lenok
biology
Productivity