๐”– Bobbio Scriptorium
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Asymmetry and variation in keratella tropica

โœ Scribed by J. Green


Book ID
104615365
Publisher
Springer
Year
1980
Tongue
English
Weight
338 KB
Volume
73
Category
Article
ISSN
1573-5141

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โœฆ Synopsis


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.


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Morphological form variation in a loricate rotifer, Keratella tropica A P ~T E I N is decribed. Form variation in this rotifer involves appearance and development of the left post,ero-lateral spine. The right postero-lateral spine varies, too. It increases with increasing length of lorica and left p