Clearance rates of the bdelloid rotifer, .i.Habrotrocha thienemanni./i., a tree-hole inhabitant

0327219 - BC 2010 RIV GB eng J - Článek v odborném periodiku
Devetter, Miloslav
Clearance rates of the bdelloid rotifer, Habrotrocha thienemanni, a tree-hole inhabitant.
Aquatic Ecology. Roč. 43, č. 1 (2009), s. 85-89. ISSN 1386-2588. E-ISSN 1573-5125
Grant CEP: GA ČR(CZ) GP206/06/P405
Výzkumný záměr: CEZ:AV0Z60660521
Klíčová slova: temperature * population CR * filtering rates
Kód oboru RIV: EH - Ekologie - společenstva
Impakt faktor: 1.549, rok: 2009

Bdelloid rotifers are basal consumers in aquatic and limnoterrestrial communities that feed primarily on small bacteria. Unfortunately, we know only a little of the role they play in the trophic dynamics in some unusual habitats they inhabit. Habrotrocha thienemanni is a typical example; it is a typical tree-hole inhabitant, commonly achieving dense populations. Filtering rates of H. thienemanni were estimated using fluorescent microspheres of a size close to natural bacterial community (0.5 µm in diameter) at two temperatures (15 and 20°C). This microspheres artificial food had been coated with BSA protein. Mean clearance rates of this rotifer varied between 1.65 and 3.79 µl ind^-1h^-1under different temperatures. Uptake of particles coated with protein was significantly higher than that on uncoated particles (t=2.85; P=0.005). Particle uptake also was correlated to the body size of the animal (r=0.44; P=0.004).
Trvalý link: http://hdl.handle.net/11104/0005365