quelen at seven days of age showed the highest selectivity indices for the group of
Rotifera at densities of 5 and 10 fish.[L.sup.-1] (consumption level "c" and "b," respectively) (Figure 3).
The Joana reservoir had the highest specific richness for
Rotifera, 13 species, and presented the more frequent occurrence of species from the genus Brachionus as well as the Laranjeiras reservoir.
Rotifera was the most abundant group in free water and larval stages of copepods were dominant in the vegetated area.
Rotifera TESTUDINELLIDAE BRACHIONIDAE Pompholyx triloba Pejler, 1957 Brachionus calyciflorus Pallas, Testudinella patina (Hermann, 1766 1783) B.
Interaction among copper toxicity, temperature and salinity on the population dynamics of Brachionus rotundiformis (
Rotifera).
Besides, Cladocera and
Rotifera populations are affected differently by distinct Cyanobacteria morphologies (Wilson et al., 2006).
Monogonont
Rotifera recorded in the world literature (except Africa) from 1960-1992.
Zooplankton (Cladocera and
Rotifera) variations along a horizontal salinity gradient and during two seasons (dry and rainy) in a tropical inverse estuary.
Forty-nine species were identified from both rivers (Table 1) and they were composed of Protozoa (6),
Rotifera (32), Cladocera (6) and Copepoda (4).
Considering only the limnetic zooplankton,
Rotifera is represented by 51 species, Cladocera by 17 species, and Copepoda by 5 species.
Key words:
Rotifera, Population growth, Salt stress, Brachionus patulus, Brachionus calyciflorus.
During the study period, 110 taxa were recorded in the zooplankton community, distributed in Cladocera (29 taxons), Copepoda (10 taxons),
Rotifera (54 taxons) and Protozoa (17 taxons).