Carico genetico in Tisbe (Copepoda, Harpacticoida). I. Tisbe holothuriae di due popolazioni del Mediterraneo occidentale
Two populations of Tisbe holothuriae, coming from marine (Banyuls-sur-mer) and brackish waters (Sigean), have been analyzed before and after progressive inbreeding. It has been shown that an increase of the homozygosity due to inbreeding determines in both populations a progressive depression of survival, fecundity, mean generation time and intrinsic rate of natural increase. The inbreeding depression is higher in the marine population. The concealed genetic variability, estimated on the basis of...