西江广东肇庆段赤眼鳟的年龄鉴定及生长研究

朱书礼, 李新辉, 李跃飞, 王超, 杨计平, 李琳

朱书礼, 李新辉, 李跃飞, 王超, 杨计平, 李琳. 西江广东肇庆段赤眼鳟的年龄鉴定及生长研究[J]. 南方水产科学, 2013, 9(2): 27-31. DOI: 10.3969/j.issn.2095-0780.2013.02.005
引用本文: 朱书礼, 李新辉, 李跃飞, 王超, 杨计平, 李琳. 西江广东肇庆段赤眼鳟的年龄鉴定及生长研究[J]. 南方水产科学, 2013, 9(2): 27-31. DOI: 10.3969/j.issn.2095-0780.2013.02.005
ZHU Shuli, LI Xinhui, LI Yuefei, WANG Chao, YANG Jiping, LI Lin. Age and growth of Spualiobarbus curriculus from Zhaoqing Guangdong Section of Xijiang River[J]. South China Fisheries Science, 2013, 9(2): 27-31. DOI: 10.3969/j.issn.2095-0780.2013.02.005
Citation: ZHU Shuli, LI Xinhui, LI Yuefei, WANG Chao, YANG Jiping, LI Lin. Age and growth of Spualiobarbus curriculus from Zhaoqing Guangdong Section of Xijiang River[J]. South China Fisheries Science, 2013, 9(2): 27-31. DOI: 10.3969/j.issn.2095-0780.2013.02.005

西江广东肇庆段赤眼鳟的年龄鉴定及生长研究

基金项目: 

科技部社会公益项目 2005DIB3J023

公益性行业(农业)科研专项 200903048-05

详细信息
    作者简介:

    朱书礼(1987-),男,硕士研究生,从事渔业资源研究。E-mail: zshuli2009@126.com

    通讯作者:

    李新辉,E-mail: lxhui01@tom.com

  • 中图分类号: S931.1

Age and growth of Spualiobarbus curriculus from Zhaoqing Guangdong Section of Xijiang River

  • 摘要:

    于2006年5月~6月和2008年5月在珠江的干流西江广东肇庆段采用刺网捕捞赤眼鳟(Spualiobarbus curriculus)标本296尾。采集赤眼鳟的鳞片材料进行年轮特征观察研究,并对赤眼鳟的生长情况进行分析。结果表明,渔获中3龄、4龄赤眼鳟占优势。3龄前体长的相对增长率较大,3龄以后生长缓慢。赤眼鳟体质量生长曲线拐点为8龄,应属衰老拐点。总死亡系数Z=0.337 9,自然死亡系数M=0.193 6,捕捞死亡系数F=0.144 3,开发率为E=0.427。为确保资源的可持续利用,可允许捕捞体长应不小于230 mm,体质量不小于220 g。

    Abstract:

    In base of the 296 specimens of Squaliobarbus curriculus captured by gill-net in the Zhaoqing Guangdong section of Xijiang River during May~June, 2006 and May, 2008, we observed the annual rings on scales of S.curriculus and studied the growth of the fish.The results reveal that the individual catches of age 3 and age 4 are dominant.The relative growth rate of length is greater before age 3 and then decreases.The inflexion point of weight growth curve is aging inflection point at age 8.The total mortality coefficient Z is 0.337 9; the natural mortality coefficient M is 0.193 6; the fishing mortality coefficient F is 0.144 3; the fishing mortality rate E is 0.427.To protect the fishery resources, the capture specifications of length should not be less than 230 mm and the weight should not be less than 220 g.

  • 图  1   赤眼鳟鳞片形状和年轮

    1,3.疏密切割型年轮; 2.副轮

    Figure  1.   Shape and annuli of scales of S.curriculus

    1, 3. incising annuli; 2. false annuli

    图  2   赤眼鳟体长体质量生长曲线

    Figure  2.   Growth curves of length and weight of S.curriculus

    图  3   赤眼鳟体长生长速度、加速度变化曲线

    Figure  3.   Growth velocity curve and growth acceleration curve for length of S.curriculus

    图  4   赤眼鳟体质量生长速度、加速度变化曲线

    Figure  4.   Growth velocity curve and growth accelerationcurve for weight of S.curriculus

    表  1   赤眼鳟各年龄生长实测数据

    Table  1   Measured values of growth of S.curriculus at different ages

    年龄age 标本数number 鳞径/mm radius   体长/mm length   体质量/g weight
    幅度margin 均长average length 幅度margin 均长average length 幅度margin 均质量average weight
    1(0+) 10 1.55~2.77 2.18   65~128 103.8   4.5~32.0 18.95
    2(1+) 32 1.84~5.90 3.83 124~247 176.0 31.4~259.3 103.40
    3(2+) 203 3.37~6.82 5.05 163~300 223.7 77.4~541.5 210.88
    4(3+) 50 4.84~7.85 6.32 214~360 275.8 179.3~1 093.0 409.30
    下载: 导出CSV

    表  2   赤眼鳟不同生长时期生长指数

    Table  2   Growth indices of S.curriculus at different ages

    年龄age 平均推算体长/mm average back-calculated length 相对增长率/% relative growth rate 生长指标growth index 平均推算体质量/g average back-calculated weight 相对增重率/% relative weight gain rate
    1 105.2     19.74  
    2 172.2 63.69 50.66 92.56 368.9
    3 224.0 30.08 25.33 211.16 128.1
    4 276.5 23.44 20.72 406.38 92.5
    下载: 导出CSV

    表  3   赤眼鳟生长参数比较

    Table  3   Comparison of Von Bertalanffy growth parameters for S.curriculus

    项目item 西江-珠江三角洲(80年代) Xijiang-Pearl River Delta (80′s) 西江肇庆段Zhaoqing section of Xijiang River 长江干流芜湖段Wuhu Reach of Yangtze River
    b 3 3.136 3.165 9
    k 0.053 3 0.135 9 0.232 8
    t0 -0.851 2 -0.396 1 -1.911
    Ti 19.8 8.00 3.04
    Wt 10 901.2 1 059.6 103.80
    L 1 183.6 616.3 320.47
    W 36 676.3 5 048 345.15
    下载: 导出CSV
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出版历程
  • 收稿日期:  2012-08-12
  • 修回日期:  2012-11-03
  • 刊出日期:  2013-04-04

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