The functional response of an organism is often assumed to maximize its fitness. We
examined the relationship between functional response and body growth, survivorship, and …

The effects of chronic exposure to fenvalerate, a synthetic pyrethroid insecticide, on the
cladoceran Daphnia galeata mendotae were evaluated under laboratory conditions. The …

Fatty acid accumulation and synthesis rates were measured in two species of daphniid
Cladocera, Daphnia magna and D. pulex, to determine what fraction of deposited fatty acids …

This review deals with culture techniques in use to estimate individual growth, development
and reproduction of copepods and cladocerans in cultures. The conceptual aspects of …

We investigate how body size of two coexisting Daphnia species varies among 7 lakes that
represent a gradient of predation risk. The two species segregate vertically in stratified lakes; …

Food dependence in growth, development, reproduction and survivorship are important
components in modelling the interaction between an organism and its food supply, and may …

(1) In natural populations of Daphnia magna, clonal frequencies may change markedly
between seasons. The range of seasonal variation in thermal response was investigated by …

The increasing application of road deicing agents (eg, NaCl) has caused widespread
salinization of freshwater environments. Chronic exposure to toxic NaCl levels can impact …

The swimming velocity of the waterflea Daphnia magna is dependent on its body size.
Therefore, environmental factors like toxic stress that influence growth also influence …

Many species of zooplankton display temporal changes in the size of the offspring they
produce. We address the question, is offspring size variation by Daphnia a predictable …