| 张年国 1
，周裕华 1
，于 飞 2
，周文玉1
，侯文杰 1
，刘本伟 1.低盐和高盐条件下不同脊尾白虾群体生长特性研究[J].广东农业科学,2022,49(10):135-145 |
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低盐和高盐条件下不同脊尾白虾群体生长特性研究 |
| Growth Characteristics of Different Exopalaemon carinicauda Populations Under Low and High Salinity Conditions |
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| DOI：10.16768/j.issn.1004-874X.2022.10.016 |
| 中文关键词: 脊尾白虾 养殖盐度 生长特性 生长式型 肥满度 |
| 英文关键词: Exopalaemon carinicauda breeding salinity growth characteristics growth pattern fullness |
| 基金项目:上海市科技兴农种源创新项目（2020-02-08-00-07-F01451）；上海市水产学会基金（水学（科）22-2-2） |
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| 中文摘要: |
| 【目的】探讨脊尾白虾在不同盐度条件下的生长特性差异，比较其生长式型及体长与体重的相互关系，
为脊尾白虾的健康养殖提供参考。【方法】对不同脊尾白虾群体在低盐（5.0‰ ±1.0‰）和高盐（22.0‰ ±1.0‰）
两种池塘养殖模式下的体长、体重等生长参数进行定期测量。【结果】（1）奉贤群体和宁海群体脊尾白虾的
生长变化趋势相近，均为低盐模式快于高盐模式，其中奉贤群体在高盐模式下的体长、体重日均增长量分别为
0.0203 cm 和 0.0194 g，低盐模式下则分别为 0.0252 cm 和 0.0265 g，宁海群体在高、低盐两种模式下的体重日
均增长量则分别为 0.0183、0.0254 g，其增速稍慢于奉贤群体；（2）脊尾白虾群体在两种盐度模式下的体长与
体重均呈幂函数关系，其回归方程分别为：奉贤高盐养殖群体 W=0.024L2.731（R2
=0.971），奉贤低盐养殖群体
W=0.023L2.765（R2
=0.992），宁海高盐养殖群体W=0.022L2.807（R2
=0.993），宁海低盐养殖群体W=0.028L2.643（R2
=0.990），
其 b 值均 <3，呈异速增长模式；（3）奉贤群体和宁海群体脊尾白虾在两种盐度模式下体长与养殖时间均呈直线
性关系，而体重与养殖时间在低盐模式则呈曲线性关系，其中奉贤群体为指数函数 Y=0.500e0.014t
（R2
=0.971），
宁海群体则为幂函数 Y=0.017t
1.0148（R2
=0.977）；（4）脊尾白虾群体的肥满度变化趋势相近，均在试验初期最高，
之后逐渐下降，至日龄 150 d 时达最低。【结论】脊尾白虾供试群体在低盐养殖环境下生长明显快于高盐环境，
低盐更有利于其生长繁育。 |
| 英文摘要: |
| 【Objective】In order to explore the growth characteristics of Exopalaemon carinicauda under different
salinity conditions, the growth patterns and relationship between body length and body weight were compared to provide
references for the healthy breeding of E. carinicauda.【Method】The growth parameters of E. carinicauda under lowsalinity (5.0 ‰ ±1.0 ‰ ) and high-salinity (22.0 ‰ ±1.0 ‰ ) conditions were analyzed, including body length and body weight.【Result】(1) The growth trends of E. carinicauda populations from Fengxian and Ninghai were rather similar,
which grew faster under low-salinity model. The average daily increments of body length and body weight of Fengxian
population were 0.0203 cm and 0.0194 g under high-salinity model, while those were 0.0252 cm and 0.0265 g under lowsalinity model; the average daily increments of body weight of Ninghai population under high-salinity model and low-salinity
model were 0.0183 g and 0.0254 g, which were slower than those of Fengxian population; (2) The relationship between body
length and body weight of E. carinicauda populations from Fengxian and Ninghai was correlated as the power function,
and their regression equations were: Fengxian population under high-salinity model: W=0.024L2.731 (R2
=0.971), Fengxian
population under low-salinity model: W=0.023L2.765 (R2
=0.992), Ninghai population under high-salinity model: W=0.022L2.807
(R2
=0.993), Ninghai population under low-salinity model: W=0.028L2.643 (R2
=0.990). All of their b values were less than
3, which showed allometric growth patterns; (3) There were linear relationships between body length and breeding time in
Fengxian and Ninghai populations under two salinity models, while power function relationships between body weight and
breeding time under low-salinity model, in which the index function of Fengxian population was: Y=0.500e0.014t
(R2
=0.971),
and that of Ninghai population was: Y=0.017t
1.0148 (R2
=0.977); (4) The trends of fullness of E. carinicauda populations were
similar, which were highest at the beginning of the experiment and then gradually decreased to the lowest in the 150 day-age.
【Conclusion】In general, the experimental populations under low-salinity breeding environment grow significantly faster than
they do under high-salinity breeding environment, and low-salinity model is more conducive to their growth and reproduction. |
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