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Effect of temperature on the soil nematode Cephalobus persegnis in a laboratory culture

Makarevskaja Z.

Polish Journal of Ecology

1998

Vol. 46, no 2

197-205

Soil nematodes Cephalobus persegnis (Bastian 1865) originating from a laboratory culture maintained at 20 stopni C cultured for three successive generations at 15 stopni C, 21 stopni C, or 15/21 stopni C for 12 hours in each temperature. Transfer of the nematodes to 15 stopni C markedly depressed their fecundity and growth of F1 worms. In next generations fecundity restored while size of the nematodes increased significantly. Similar though less pronounced changes were observed also at 15/21 stopni C. No marked changes were found at 21 stopni C. The temperature the nematodes were cultured at did not influence their respiration rate measured at 21 stopni C. The latter depended on the weight of the nematodes.