摘要
本文就曹河水库与丹江口水库中鲤的年龄与生长进行了比较研究。鳞片上年轮特征表现为切割与疏密两大标志，特别是第一轮较显著，而高轮的特征主要为切割。两类水体的年轮特征基本一致。环纹间距对鉴定年龄有一定的参考价值。环纹数随年龄增大而增多，在５龄内呈线性相关。年轮形成时期主要为４～６月。鳞径与各种可量性状之间呈一元线性相关。鳞长与体重的关系相似于体长与体重的关系。曹河水库鲤生长明显慢于丹江口水库鲤。
The age and growth of the carp are studied in this paper by observingthe scales of 632 specilnens collected from Caohe Reservoir, from October1990 to October 1991,and those of 313 specimens collected in 1987 and 1991,from Danjiangkou Reservoir,The results are as follows:The annulus is marked by the intersection of successive groups of circ-uli and the interspace of the sparse or dense zones of circuli.The abovecharacteristics are conspicuous in the first two annuli,and are less conspi-cuous in the“senior annuli”,only with “intersection”.The feature of theannulus is slightly varying in different waters.The sparse-dense circuliare useful for determining the age of the carp.The number of circuli increases together with ages.Positive linearline correlation exists between number of circuli and the age,undsr fiveyear old. The annuli form mainly from April to June.Positive linear line correlation exists between the radius of scale andthe various features which can be measured.The correlation between theradius of scale and the weight is a like that between the length and theweight.The growth of the carp in Caohe Reservoir is slower than that inDanjiangkou Reservoir.
关键词
鲤
年龄
生长
水库
Carp,Age,Growth, Reservoir
