摘要
体长6~8 cm范围内(P>0.05)白甲鱼与光倒刺鲃的感应流速、相对感应流速均有极显著差异(P<0.001).白甲鱼幼鱼的感应流速、相对感应流速相对体长均有显著差异(P<0.05),光倒刺鲃的感应流速相对体长有显著差异(P<0.05),而相对感应流速相对体长无显著差异(P>0.05);白甲鱼幼鱼与光倒刺鲃幼鱼的感应流速推算公式分别为y=0.001 13x3-0.263x2+2.041 6x-5.144 5,y=-0.000 2x3+0.002 4x2+0.016 2x-0.060 4.试验所得体长(7.772±0.141)cm白甲鱼的感应流速为(0.131 7±0.003)cm/s,相对感应流速为(1.699±0.030)bl/s;体长(6.516±0.114)cm光倒刺鲃的感应流速为(0.077±0.002)cm/s,相对感应流速为(1.187±0.020)bl/s.
Induced velocity and relative induced velocity of Varicorhinus and Spinibarbus hollandi at 6 cm 8 cm length ( P 〉 0.05 ) have highly significant difference ( P 〈 0. 001 ). The induced velocity and relative induced velocity of young Varicorhinus have significant difference ( P 〈 0.05 ) in body length, the induced velocity of Spinibarbus hollandi has significant difference ( P 〈 0.05 ) in body length, while the relative induced velocity has no significant difference (P 〉 0. 05 ) in body length. The prediction equation of induced velocity of Varicorhinus and Spinibarbus hollandi is y = 0. 001 13x3 -0. 263x2 + 2. 041 6x -5. 144 5 ,y = -0. 000 2x3 + 0. 002 4x2 +0. 016 2x - 0. 060 4. The induced velocity Varieorhinus at (7. 772 ± 0. 141 )cm is (0. 1317 ± 0.003) crn/s,relative induced velocity is ( 1. 699 ±0. 030) bl/s. The induced velocity Spinibarbus hollandi at (6.516 ± 0. 114) cm is (0.077 ± 0. 002) cm/s, relative induced velocity is ( 1.187 ± 0. 020) bl/s.
出处
《北华大学学报(自然科学版)》
CAS
2013年第2期223-226,共4页
Journal of Beihua University(Natural Science)
基金
国家自然科学基金项目(SDHZ2012137)
关键词
白甲鱼
光倒刺鲃
感应流速
相对感应流速
varicorhinus
Spinibarbus hollandi
induced velocity
relative induced velocity