Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You or Your Team.

Learn More →

Studies on life history characteristics of Brachionus plicatilis O. F. Müller (Rotifera) in relation to temperature, salinity and food algae

Studies on life history characteristics of Brachionus plicatilis O. F. Müller (Rotifera) in... Effects of temperature (18, 24, and 30°C), salinity (5–40 ppt, five intervals) and algal foods (Synechococcus sp., Chlorella pyrenoidosa, Isochrysis zhanjiangensis, Dunaliella salina and Tetraselmis cordiformis) on the life table demography of six geographical Brachionus plicatilis sensu stricto clones, which had been identified according to the prevalent taxonomy and biometric analysis of B. plicatilis sensu lato, were studied. The results showed that temperature, salinity and temperature × salinity significantly influenced the life history parameters. Genotype (clone) had no effect on the population growth rate but did influence the net reproductive rate, generation time and lifespan. All rotifer clones showed the expected increase in population growth rate with increasing temperature. B. plicatilis s. s. attained a higher population growth rate at low–medium salinities (5–20 ppt) than at high salinities (25–40 ppt). The equivalent spherical diameter (ESD) of food algae, salinity and ESD × salinity had significant effects on the life history parameters. In this case, genotype had no effect on population growth rate, net reproductive rate and generation time but did influence lifespan. The population growth rate of B. plicatilis s. s. evaluated against particle retention spectrum of algae at two salinities resulted in bell-shaped curves. Dunaliella salina with an ESD = 7.7 μm was considered to be the best food for B. plicatilis s. s. while Synechococcus appeared to be an inadequate food algae. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Aquatic Ecology Springer Journals

Studies on life history characteristics of Brachionus plicatilis O. F. Müller (Rotifera) in relation to temperature, salinity and food algae

Aquatic Ecology , Volume 42 (1) – May 9, 2007

Loading next page...
 
/lp/springer-journals/studies-on-life-history-characteristics-of-brachionus-plicatilis-o-f-m-OpBhLBqB46

References (41)

Publisher
Springer Journals
Copyright
Copyright © 2007 by Springer Science+Business Media, B.V.
Subject
Life Sciences; Ecosystems; Freshwater & Marine Ecology
ISSN
1386-2588
eISSN
1573-5125
DOI
10.1007/s10452-007-9092-4
Publisher site
See Article on Publisher Site

Abstract

Effects of temperature (18, 24, and 30°C), salinity (5–40 ppt, five intervals) and algal foods (Synechococcus sp., Chlorella pyrenoidosa, Isochrysis zhanjiangensis, Dunaliella salina and Tetraselmis cordiformis) on the life table demography of six geographical Brachionus plicatilis sensu stricto clones, which had been identified according to the prevalent taxonomy and biometric analysis of B. plicatilis sensu lato, were studied. The results showed that temperature, salinity and temperature × salinity significantly influenced the life history parameters. Genotype (clone) had no effect on the population growth rate but did influence the net reproductive rate, generation time and lifespan. All rotifer clones showed the expected increase in population growth rate with increasing temperature. B. plicatilis s. s. attained a higher population growth rate at low–medium salinities (5–20 ppt) than at high salinities (25–40 ppt). The equivalent spherical diameter (ESD) of food algae, salinity and ESD × salinity had significant effects on the life history parameters. In this case, genotype had no effect on population growth rate, net reproductive rate and generation time but did influence lifespan. The population growth rate of B. plicatilis s. s. evaluated against particle retention spectrum of algae at two salinities resulted in bell-shaped curves. Dunaliella salina with an ESD = 7.7 μm was considered to be the best food for B. plicatilis s. s. while Synechococcus appeared to be an inadequate food algae.

Journal

Aquatic EcologySpringer Journals

Published: May 9, 2007

There are no references for this article.