caa a22 4500 445894377 CHVBK 20180317145626.0 cr unu---uuuuu 170323e20110501xx s 000 0 eng 10.1007/s10750-011-0615-6 doi (NATIONALLICENCE)springer-10.1007/s10750-011-0615-6 Effects of salinity, food level, and the presence of microcrustacean zooplankters on the population dynamics of rotifer Brachionus rotundiformis [Elektronische Daten] [Shin-Hong Cheng, Samba Kâ, Ram Kumar, Chung-Su Kuo, Jiang-Shiou Hwang] We investigated the population dynamics of the rotifer Brachionus rotundiformis fed with the alga Isochrysis galbana at two food concentrations (3×104 and 40×104cellsml−1) and four salinity levels (5, 10, 20, and 30) in the presence and absence of two copepod species, Pseudodiaptomus annandalei and Apocyclops royi and one cladoceran, Diaphanosoma aspinosum. Both the density and population growth rate of B. rotundiformis increased at higher food concentration and at salinity levels of 10 and 20. Among the microcrustaceans, only P. annandalei had a significant negative effect on the growth rate of the rotifer population because of its efficient predation. In contrast, the presence of both A. royi and D. aspinosum did not affect the growth rates at any of the salinity and food levels. Brachionus rotundiformis had significantly larger size during the log-phase, particularly if P. annandalei was present. Thus, B. rotundiformis grows better at higher food level and medium salinity levels. Unlike the larger calanoid, P. annandalei, B. rotundiformis can definitely coexist with relatively small cyclopoid copepods (A. royi) and cladocerans (D. aspinosum), because of the absence of interference. Springer Science+Business Media B.V., 2011 Rotifers nationallicence Live food nationallicence Copepods nationallicence Cladocerans nationallicence Interference nationallicence Predation nationallicence Cheng Shin-Hong Tungkang Biotechnology Research Center, Fisheries Research Institute, 928, Tungkang, Pingtung, Taiwan aut Kâ Samba Institute of Marine Biology, National Taiwan Ocean University, 202, Keelung, Taiwan aut Kumar Ram Ecosystem Research Laboratory, Acharya Narendra Dev College, University of Delhi, Govindpuri, Kalkaji, 110019, New Delhi, India aut Kuo Chung-Su Institute of Marine Biology, National Taiwan Ocean University, 202, Keelung, Taiwan aut Hwang Jiang-Shiou Institute of Marine Biology, National Taiwan Ocean University, 202, Keelung, Taiwan aut Hydrobiologia Springer Netherlands 666/1(2011-05-01), 289-299 0018-8158 666:1<289 2011 666 10750 https://doi.org/10.1007/s10750-011-0615-6 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10750-011-0615-6 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Cheng Shin-Hong Tungkang Biotechnology Research Center, Fisheries Research Institute, 928, Tungkang, Pingtung, Taiwan aut NATIONALLICENCE 700 1- Kâ Samba Institute of Marine Biology, National Taiwan Ocean University, 202, Keelung, Taiwan aut NATIONALLICENCE 700 1- Kumar Ram Ecosystem Research Laboratory, Acharya Narendra Dev College, University of Delhi, Govindpuri, Kalkaji, 110019, New Delhi, India aut NATIONALLICENCE 700 1- Kuo Chung-Su Institute of Marine Biology, National Taiwan Ocean University, 202, Keelung, Taiwan aut NATIONALLICENCE 700 1- Hwang Jiang-Shiou Institute of Marine Biology, National Taiwan Ocean University, 202, Keelung, Taiwan aut NATIONALLICENCE 773 0- Hydrobiologia Springer Netherlands 666/1(2011-05-01), 289-299 0018-8158 666:1<289 2011 666 10750 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer