Ref ID : 776
Castor Guisande and Julia Toja; The dynamics of various species of the genus Brachionus (Rotatoria) in the Guadalquivir River. Arch.Hydrobiol. 112(4):579-595, 1988
Reprint
In File
Notes
The zooplankton community of the estuary of the Guadalquivir River was studied from February of 1983 to March of 1984. Ten sampling stations were situated along the estuary. In the first six stations, where conductivity had reached the lowest levels, the rotifers dominated. The genus Brachionus was the most important of them. Temperature is the main factor determining the composition of the genus Brachionus populations. This group possesses a clear temporal component, which determined the distribution of the Brachionus species, according to the time of year. As a result of this, the competition between them decreases. When two species appear at the same time of the year, their body size, tolerance levels of contamination and their energy requirements, are the factors that determine little overlapping of their niches.