Effects of medium renewal and handling stress on life history traits in Daphnia

被引：4

作者：

Rousseaux, Sarah ^{[1
]}

Vanoverbeke, Joost ^{[1
]}

Aerts, Jeroen ^{[1
]}

Declerck, Steven A. J. ^{[1
,2
]}

机构：

[1] Katholieke Univ Leuven, Lab Aquat Ecol & Evolutionary Biol, B-3000 Louvain, Belgium

[2] Netherlands Inst Ecol, Dept Aquat Ecol, NL-3631 AC Nieuwersluis, Netherlands

来源：

HYDROBIOLOGIA | 2010年 / 643卷

关键词：

Cladocera; Physical manipulation; Stress induction; Batch culture; PHOTOTACTIC BEHAVIOR; GENETIC DIFFERENTIATION; LOCAL ADAPTATION; MAGNA; POPULATION; SIZE; AVAILABILITY; REPRODUCTION; EXPRESSION; CRUSTACEA;

D O I：

10.1007/s10750-010-0137-7

中图分类号：

Q17 [水生生物学];

学科分类号：

071004 ;

摘要：

The zooplankton genus Daphnia is used as a model organism in ecological, ecotoxicological and evolutionary research. It is often used in experimental laboratory setups to examine life history traits under a variety of factors inducing stress. One type of stress, handling stress because of manipulation during the experiments, however, is often neglected. In a standard life history experiment, we found that several kinds of experimental manipulation may have a significant impact on the life history response of test animals. Especially renewal of the medium may reduce the reproductive output of the individuals significantly. In every experiment where the reproduction of Daphnia is an important trait under study, the negative effects of medium renewal and handling stress should be considered and care should be taken to keep handling of the individuals to a minimum.

引用

页码：63 / 69

页数：7

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