The diverse diets of common planktonic rotifers are described in detail from field and laboratory observations experiments. Also considered methodological approaches, rotifer feeding mechanisms, the availability natural waters less well-known food items (detritus, picoplankton, protozoans). Despite much variation among within genera, niches can be subdivided into four broad, overlapping categor...

with the aim of identifying the rotifera fauna of kepektas dam lake, samples were collectedmonthly between january-december 2005. in total 11 rotifer species were identified. as a species-wisepercentage, kellicttia longispina had the highest level with 57%. when the annual abundance of species wastaken into consideration polyarthra vulgaris, colurella uncinata, asplanchna priodonta and keratell...

The Rotimer, a rotifer-specific biopolymer, is an exogenic bioactive exudate secreted by different monogonant species (e.g. Euchlanis dilatata or Lecane bulla). production of this viscoelastic biomolecule induced micro-particles, thereby forming special Rotimer-Inductor Conglomerate (RIC) in web format. In case, the water insoluble Carmine crystals, filtered to size (max. diameter was 50 µm), f...

The chemical ecology of rotifers has been little studied. A yet unknown property is presented within some monogonant rotifers, namely the ability to produce an exogenic filamentous biopolymer, named ‘Rotimer’. This rotifer-specific viscoelastic fiber was observed in six different freshwater monogonants (Euchlanis dilatata, Lecane bulla, Lepadella patella, Itura aurita, Colurella adriatica and T...

ADV # 20 AN 05 E CES IN ECOLOGICAL RESEARCH VOL. 37 0065-250 lsevier Ltd. All rights reserved DOI: 10.1016/S0065-2504( 4/0 04) II. I ntroduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222 III. P redator and Prey in the Chemostat—A Simple Story? . . . . . . . . . . . . 224 IV. T esting Hypotheses of Mechanism . . . . . . . . . . . . . . . . . . ...

www.sciencemag.org SCIENCE VOL 327 29 JANUARY 2010 497 COVER Spore-bearing fungal parasites emerge from the digested corpses of three bdelloid rotifers. These freshwater invertebrates (length <0.5 millimeters) present an evolutionary puzzle because they have reproduced without sex for millions of years but have not been driven extinct by relentlessly coevolving parasites. Bdelloids can escape f...

Newly isolated thraustochytrids showed uptake of vitamin B12 from the culture into the cells. Cultivation of thraustochytrids in a medium containing 1 microg/ml of vitamin B12 greatly increased the contents of vitamin B12 in the cells. Similarly to Schizochytrium limacinum, odd numbered fatty acids decreased in the cells of new isolates cultivated with vitamin B12. Vitamin B12-enriched thrausto...