this study was aimed to investigate some feeding characteristics of kura barb (barbus lacerta) from bibi-sayydan river of semirom, isfahan. for this purpose, during august 2010 to july 2011, some 445 specimens of the kura barb fish were caught using a seine net and a cast net and transferred to the fisheries laboratory on ice for further examinations. the results showed that the condition facto...

The chemical regulation of respiration in various species of reptiles has earlier been studied by Siefert (1896), Babak (1914a, b), v. Saalfeld (1934), Vos (1936), Boelaert (1941,1942), Randal, Stullken & Hiestand (1944), and B. Nielsen (1961). A survey of the literature was given by Vos (1936). The present work deals with the effect of different concentrations of O2 in the inspiratory air on r...

In mice and man, females prefer males with a major histocompatibility complex (MHC) genotype different to their own. We tested whether this phenomenon also occurs in the Swedish sand lizard (Lacerta agilis). Females in a laboratory experiment preferred to associate with odour samples obtained from more distantly related males at the MHC class 1 loci. Data on free-ranging lizards suggest that as...