摘要
本文就山女鳟的生物学特性及繁殖力进行了测定 ,结果表明 :山女鳟可量比例性状为体长 /体高 4 2 0± 0 2 7,体长 /头长 3 99± 0 35 ,体长 /尾柄长 1 0 60± 1 5 5 ,体长 /尾柄高 1 2 1 4± 0 79,头长 /吻长 2 5 3± 0 63,头长 /眼径 6 84± 1 1 6,头长 /眼间距 3 0 9±0 33;可数性状为背鳍鳍式 :D 1 0～ 1 6,胸鳍鳍式 :A 8～ 1 3,腹鳍鳍式 :8～ 1 1 ,臀鳍鳍式 :1 1～ 1 5 ,侧线鳞 :1 1 2～ 1 40 ,侧线上鳞 :2 6～ 2 9,侧线下鳞 :2 5～ 35 ,第一鳃弓鳃耙数 :1 3～ 1 5 ,脊椎骨 63～ 65 ,幽门垂 2 0～ 5 7。绝对繁殖力 61 7 83± 2 5 2 70 ,相对繁殖力 2 0 9± 0 67。
This article is about the detection of the biological characters and productivity of Oncorhychus masou masou.The results showed that the measurable charcters ratios of Oncorhychus masou masou are which body length/body height is 4.20±0.27,body length/head length is 3.99 ±0.35,body length/tail stem length is 10.60±1.55,body length/tail stem height is 12.14±0.79,head length/kiss length 2.53±0.63,head length/kiss length is 2.53±0.63,head length/eye diameter is 6.84±1.16,head length/eye distance is 3.09±0.33. And the countable characters are which the dorsal fin formula is D.10～16,the pectoral fin formula is A.8～13,the ventral fin formula is 8～11,the anal fin formula is11～15,the scale in lateral line is 112～140,the scale above lateral line is 26～29,the scale below lateral line is 25～35,the number of first gill arch and raker is 13～15,the vertebra is 63～65,the pyloric sac is 20～57.The absolute productivity is 617.83±252.70 and the relative productivity is 2.09±0.67.
出处
《水产学杂志》
CAS
2004年第2期65-68,78,共5页
Chinese Journal of Fisheries
基金
黑龙江省科技攻关项目 (GC0 4B5 2 2 )。
