DRY-WEIGHT ESTIMATE OF CHAOBORUS FLAVICANS (MEIGEN) AS A FUNCTION OF LENGTH AND INSTARS

被引：46

作者：

DUMONT, HJ ^{[1
]}

BALVAY, G ^{[1
]}

机构：

[1] INRA,HYDROBIOL LACUSTRE STN,F-74203 THONON,FRANCE

来源：

HYDROBIOLOGIA | 1979年 / 64卷 / 02期

关键词：

Chaoborus flavicans; dry weight; instars biometrics; length/dry weight regression equations;

D O I：

10.1007/BF00023189

中图分类号：

Q17 [水生生物学];

学科分类号：

071004 ;

摘要：

Regression equations relating length to dry weight have been derived for the four larval instars of Chaoborus flavicans (Meigen). A general equation, in which all instars are lumped, was also developed, but produces biased results outside a rather narrow central interval. The rate of increase, in terms of weight, is minimal in first instar larvae and maximal in fourth instar larvae, while the second and third instars are both intermediate and very closely related to one another. Three critical points have been defined, corresponding to body lengths at which a particular instar has to molt in order to be able to continue growing optimally. © 1979 Dr. W. Junk b.v. Publishers.

引用

页码：139 / 145

页数：7