|one publication added to basket |
|Asymmetry and variation in Keratella tropica|
|Green, J. (1980). Asymmetry and variation in Keratella tropica. Hydrobiologia 73(1-3): 241-248|
|In: Hydrobiologia. Springer: Berlin. ISSN 0018-8158, more|
Cyclomorphosis; Organism morphology; Variations; Calanoida [WoRMS]; Chiridota rotifera (Pourtalès, 1851) [WoRMS]; Keratella tropica (Apstein, 1907) [WoRMS]; Fresh water
Keratella tropica usually has two posterior spines. Both may vary in length, but the left is always shorter than the right. Sometimes the left spine is absent. Spine length varies with the length of the lorica, but there are other, external, influences. Three separate lines of evidence indicate that factors which promote spine length
are related in some way to the presence of calanoid copepods.