摘要
于2001年4月至2006年8月对池塘养殖的线纹尖塘鳢Oxyeleotris lineolatus的生长特性连续进行了6年多的观察研究。结果表明：Ⅰ-Ⅵ龄鱼体长和体重相对增长率和生长指标随着年龄增长而逐渐下降，体长和体重的关系式为W=0．0186L^3.1312，体长（LB）与全长（LT）的关系式为LT=1．1385LB＋0．8702；应用Von Bertalanffy生长方程求得其体长、体重生长方程分别为Lt=48．43[1-e^-0.3099（t＋0.4826）]，Wt=3515．53[1-e^-0.3099（t＋0.4826）]^3.1312，体重生长曲线拐点tx=3．2龄，相应的体长为32.96cm，体重为1053．93g；生长速度和加速度曲线能反映生长过程的变化特点，按生长特征值分析可分为两个时期，即t〈3．2龄前的生长迅速期和t〉3．2龄后的生长减缓期，表明线纹尖塘鳢在池塘中具有良好的生长潜力；用特殊Yon Bertalanffy生长方程、一般VonBertalanffy、Logistic、Gompertz生长方程和灰色动态生长模型（GDGM）等5种生长方程拟合了池养线纹尖塘鳢的生长，根据各方程拟合残差平方和的大小判断，灰色动态生长模型对其生长的拟合效果较好，其次是一般Von Bertalanffy生长方程。
The present paper deals with the growth characteristics and life - history pattern of pond - reared sleepy cod （ Oxyeleotris lineolatus）. A total of 148 specimens were collected from experiment base of Dongguan South China Special Fishery Research Institute from April 2001 to August 2006. The 1 to 6 year old fish was found to have body lengths from 14.50 to 43.12 cm, relative growth in length and weight decreasing with ages. The relationship between total length and body length （ LT）, body weight （W） and body length （LB ） was expressed in two formula LT = a ＋ bLB and W = aL^b. Growth rate was calculated using Von Bertalanffy equation, for body length by Lt = L∞ [ 1 - e^ -k （t- t0） ] and body weight by Wt= W∞ [ 1 - e ^-k（t-t0） ]^ b. The relative weight growth rates （RGR） were calculated by RGRw = （ W2 - W1 ）/（t2 - t1 ） × 100%, length relative growth rates （ RGR ） by RGRL = （L2 - L1 ）/（ t2 - t1 ） × 100%, growth index （GI） by GI= [ （In L2 -In L1 ）/（t2 -t1 ） ]L1. Results showed that relationship between body length, L（cm）, and body weight, W（g） was expressed in W = 0. 0186L^3.1312（R = 0. 9863 ） , relationship between total length,LT（cm） , and body length, LB（cm）, in LT = 1. 1385LB ＋0. 8702（R =0.9989）. Through observation and statistical analysis of the total catch, the Von Bertalantty equations for the species were as follows： L∞ =48.43 cm, W∞ = 3515.53 g, growth coefficient k =0. 3099, Starting point age to = -0. 4826. L, =48. 43[ 1 - e ^-0. 3099（t ＋0. 4826）];Wt = 3515.53 [ 1 - e^ -0. 3099（t ＋0. 4826） ] 3. 1312, the growth inflection point was at t, = 3.2 years, corresponding to Ltx = 32.96 cm, and Wtx = 1053.93 g. This indicated that the fish had much better gowth in the first 3.2 years than that in the later 3.2 years. Differences in relative growth rate and growth indexes also showed the same trend. It is suggested that the fish be a good canidate for commercial culture in ponds, and have better econom
出处
《大连水产学院学报》
CSCD
北大核心
2009年第1期46-51,共6页
Journal of Dalian Fisheries University
基金
广东省科技兴海(兴渔)专项资金项目(2004)
关键词
池塘养殖
线纹尖塘鳢
生长特性
pond - reared
Oxyeleotris lineolatus
growth characteristics
