415. , and F.H. Ruddle. 1970. A chromosome study of 



four species and a hybrid of the killifish genus 

 Fundulus (Cyprinodontidae) . Chromosoma (Berl.) 

 29(3):255-267. 



416. Cherfas, B.I., and P.I. Orlova. 1933. The wild carp an 



object of pond fish farming. Rybn. Khoz. SSSR 

 13(8-9) :41-44. 



417. Cherfas, N.B. 1966. Natural triploidy in females of the 



unisexual form of the goldfish (Carassius auratus 

 gibelio Bloch). (In Russ., Engl, transl.) Genetika 

 (Soviet Genetics) 2(5): 9-13. 



419. Chernenko, E.V. 1969. On the evolution and cytotaxonomy of 



fishes of family Salmonidae. (In Russ.) Vopr. Ikhtiol. 

 59:971-980. Problems Ichthyol. 9(6) : 781-788. 



418. . 1976. Genome mutations among embryos of the 



anadromous sockeye Oncorhynchus nerka (Walb.) Lake 

 Dal' nee (Kamchatka). Vopr. Ikhtiol. 98:416-423, 

 Transl. 16(3) :373-379. 



420. Chernomashentsez, A. 1973. Effects of certain food 



supplements on the physiological conditions of 

 beluga x sterlet hybrids. (Vliyanie nekotorykh 

 dobavok v korm na fizologicheskoe sostoyanie gibridov 

 beluga x sterlyad. ) Rybn. Khoz. (Moscow) 49 (11): 15-17 



421. Chervinski, J. 1967. Tilapia nilotica (Linne) from Lake 



Rudolph, Kenya, and its hybrids resulting from a 



cross with T. aurea (Steindachner) (Pisces, Cichlidae). 



Bamidgeh 19(4):81-96. 



422. . 1971. Reexamination of melanoma in hybrids of 



Poecilia fishes of the genus Xiphophorus. Ph.D. 

 Thesis, New York Univ., 92 p. Diss. Abstr. 32:1372B, 

 1972. 



424. , and M. Lahav. 1976. The effect of exposure to 



low temperature on fingerlings of local Tilapia 

 (Tilapia aurea) (Steindachner) and imported (Tilapia 

 vulcani) (Trewavas) and Tilapia nilotica (Linne) in 

 Israel. Bamidgeh 28(1/2 ): 25-29. 



423. , and A. Yashouv. 1971. Preliminary experiments 



on the growth of Tilapia aurea Steindachner (Pisces, 

 Cichlidae) in seawater ponds. Bamidgeh 23(4) : 125-129. 



425. Chevassus, B. 1979. Hybridization in salmonids: Results 



and perspectives. Aguaculture 17:113-128. 



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