Titlebook: Rotatoria; Proceedings of the 2 H. J. Dumont,J. Green Conference proceedings 1980 Dr. W. Junk bv Publishers, The Hague 1980 Fauna.ecology.e

Palpate

dendrites

Experimental Observations on Maternal Reproductive Rate and Offspring Characteristics, order to determine their life tables. Cohorts and parental life schedules are compared and discussed. A sort of correlation between offspring fecundity and life span and maternal rate of egg production could be established.

Temporal-Lobe

偽證

Mass Culture Experiments With Brachionus Rubens,ood concentration as well as the concentration of algal medium tolerated by ., and the influence of nitrite, sodium chloride, extreme pH-values and low oxygen concentrations on the reproduction of . were determined.

avarice

替代品

About a Transmissible Influence Through Several Generations in a Clone of the Rotifer Notommata CopOver ten years, the individuals of an orthoclone of . gradually lost their sensitivity to photoperiod. This loss is transmissible but reversible in three generations. It is endogenous but not chromosomal. The hypothesis is forwarded that it is induced by external factors, and quite possibly crowding.

苦惱

STALL

Methods for Obtaining an Axenic Culture of Habrotrocha Rosa Donner 1949,A culture of the bacterivorous rotifer . was separated from other Eucaryota in activated sludge and then purified by passages from most representatives of the bacterial microflora. A fully axenic culture was finally obtained by use of a lysing buffer and certain antibiotics.

難理解

The Determination of the Chromosome Number of Habrotrocha Rosa Donner, 1949,The number of chromosomes in . Donner 1949 has been estimated at 2n(?) =14. Chromosomes were stained and photographed by the RVD method (acetocarmine + fast green). Observations were made on oocytes and cleavage eggs.

Aspirin

,Hatching of Brachionus Rubens O. F. Müller Resting Eggs (Rotifers),After a dormant period at low temperature (5°C) and darkness, hatching of . resting eggs is induced by an increase of temperature (10-22°C) in presence of light.