Growth and longevity of the mola carplet Amblypharyngodon mola (Cyprinidae) in the Payra River, southern Bangladesh

Growth and longevity of the mola carplet Amblypharyngodon mola (Cyprinidae) in the Payra River, southern Bangladesh
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孟加拉国南部帕拉河中翻车鱼(Amblypharyngodon mola)的生长和寿命

DOI:
10.1016/j.ejar.2017.11.002
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发表时间:
2017
影响因子:
3.5
通讯作者:
Ohtomi Jun
Ohtomi Jun
中科院分区:
--
文献类型:
--
作者:
Ahamed Ferdous;Ahmed Zoarder Faruque;Hossain Md. Yeamin;Ohtomi Jun

文献摘要

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2016年2月至2017年1月,利用长度-频率分布研究了孟加拉国南部Payra河中amblypharyngodon molaon的生长和寿命。雄性和雌性均于6月首次招募,模态尺寸约为25 毫米标准长度。两性的生长用von Bertalanffy生长方程描述为:雄性的Lt= 50.10[1 − exp{−0.145(t+ 2.926)}],雌性的Lt= 51.64[1 − exp{−0.135(t+ 3.326)}]。两性生长模式相似,两性间无显著差异(F检验,F= 1.89;p= .167)。该物种的寿命估计为1 + 年(雄性13 个月,雌性15 个月)。标准长度与体重的关系表明两性的生长都是等长的。然而,ANCOVA显示两性之间的截距有显著差异(p< .05),但斜率没有差异(p= .420)。
The growth and longevity ofAmblypharyngodon molawas studied in the Payra River, southern Bangladesh, using length-frequency distributions during February 2016–January 2017. Both males and females first recruited in June, with modal size around 25 mm standard length. Growth for both sexes was described by the von Bertalanffy growth equation as:Lt= 50.10[1 − exp {−0.145(t+ 2.926)}] for males andLt= 51.64[1 − exp {−0.135(t+ 3.326)}] for females. Both sexes showed similar growth patterns as no significant difference was observed between the sexes (F-test,F= 1.89;p= .167). The longevity of this species was estimated to be 1 + year (13 months for males and 15 months for females). Standard length vs. body weight relationship indicated an isometric growth in both sexes. However, ANCOVA revealed significant differences in intercept (p< .05) between sexes, though not with slopes (p= .420).