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蓝昭军,李强,赵俊,钟良明.2015.北江侧条光唇鱼的年龄与生长特征.动物学杂志,50(4):518-528.
北江侧条光唇鱼的年龄与生长特征
Age and growth of Acrossocheilus parallens in the Beijiang River
投稿时间:2014-08-15  修订日期:2015-06-30
DOI:DOI: 10.13859/j.cjz.201504003
中文关键词:  侧条光唇鱼  年龄  生长  北江
英文关键词:Acrossocheilus parallens  age  growth  Beijiang River
基金项目:广东省海洋渔业科技专项(A201001E04);公益性行业(农业)科研专项经费资助(201303048)。
作者单位E-mail
蓝昭军 华南师范大学生命科学学院广东省高等学校生态与环境科学重点实验室广东省水产健康安全养殖重点实验室韶关市水产研究所 lanzhj@163.com 
李强 广州大学生命科学学院  
赵俊 华南师范大学生命科学学院广东省高等学校生态与环境科学重点实验室广东省水产健康安全养殖重点实验室 zhaojun@scnu.edu.cn 
钟良明 韶关市水产研究所  
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中文摘要:
      于2007年7月至2009年6月间,在北江中上游地区采集了358尾侧条光唇鱼(Acrossocheilus parallens)样本,以鳞片作为年龄鉴定材料,对其年龄与生长特征进行了研究。侧条光唇鱼鳞片上年轮结构清晰,前区主要为疏密型,而侧区主要为切割型;鳞片的边缘生长率显示,其年轮的主要形成期为2 ~ 3月份。样本中的雌性由1+ ~ 5+龄5个龄组组成,优势龄组为1+ ~ 3+龄;而雄性由1+ ~ 4+龄4个龄组组成,优势龄组为1+ ~ 2+龄。雌鱼的体长(L,cm)范围为5.7 ~ 14.4 cm,集中于7.0 ~ 13.0 cm之间;体重(W,g)范围为4.75 ~ 108.40 g,集中于10.00 ~ 30.00 g之间。雄鱼的体长范围为5.7 ~ 12.6 cm,集中于7.0 ~ 11.0 cm之间;体重范围为4.02 ~ 74.92 g,主要集中于10.00 ~ 20.00 g之间。体长与体重的关系为W = 0.017L3.167、W♀ = 0.017L3.198、W♂ = 0.023L3.025,协方差分析表明,雌、雄个体在体长与体重关系上,差异显著。体长(L,cm)与鳞径(R,mm)呈线性关系, L♀ = 3.126R + 1.869 、L♂ = 2.875R + 2.152。拟合出Von Bertalanffy 生长参数,雌性L∞ = 17.143 5 cm,k = 0.270 5/a,W∞ = 150.347 4 g,t0 =﹣0.614 6龄;雄性L∞ = 17.236 5 cm,k = 0.226 9/a,W∞ = 126.468 6 g,t0 =﹣0.921 5龄。雌鱼体重生长的拐点年龄为3.68龄,拐点体长约为11.8 cm,体重约为45.26 g;雄鱼的拐点年龄为3.96龄,拐点体长约为11.5 cm,体重约为37.60 g。作为渔业对策,建议起捕年龄3龄以上或体长10 cm以上的个体。
英文摘要:
      By measuring the growth rings of the scales,the age and growth of 358 specimens of Acrossocheilus parallens which were collected from July 2007 to June 2009 in the Beijiang River were studied. The annuli on scales were clear,the pattern of sparseness-denseness was visible in the prezone region while the cut pattern was present on the rear-side region. The annuli on scales was formed once a year, the annuli formation took place primarily between February and March each year. Ages ranged from1+ to5+ years for females, mainly in1+ to 3+ years; and 1+ to 4+ for males, mainly in 1+ to 2+ years for males. The standard length of female ranged from 5.7 to 14.4 cm, with the majority were from 7.0 to 13.0 cm; while the male ranged from 5.7 to 12.6 cm, with the majority were from 7.0 to 11.0 cm. The body weight of female ranged from 4.75 to 108.40 g, but most fish ranged from 10.00 to 30.00g; while the male ranged from 4.02 to 74.92 g, with the majority were from 10.00 to 20.00 g. The relationship between standard length (cm) and body weight (g) was W♀ = 0.017L3.198; and W♂= 0.023L3.025, and W = 0.017L3.167 for the combined sexes. Females and males exhibited statistically significant differences in growth. The relationship between standard length and scale radius (R) was L♀ = 3.126R + 1.869 and L♂ = 2.875R + 2.152. The von Bertalanffy growth arameters based on length-at-age data were L∞ = 17.143 5 cm, k = 0.270 5/a, W∞ = 150.347 4 g,t0 =﹣0.614 6 year for females, and L∞ = 17.236 5 cm,k = 0.226 9/a,W∞ = 126.468 6 g,t0 =﹣0.921 5 year for males. The growth inflexion point were 3.68 years and 3.96 years for females and males, when Li = 11.8 cm, Wi = 45.26 g for females, and Li = 11.5 cm, Wi = 37.60 g for males. To protect the population of A. parallens in Beijiang River, we suggest only fish longer than 10.0 cm (age 3) should be harvested.
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