Fish resources in natural water bodies are tending to decrease due to intensified fishing, the extensive construction of hydropower plants on rivers, and the pollution of seas and freshwater basins by indus trial and agricultural wastes. Nowadays only artificial fish rearing can meet man's requirements in fish products. Fish breeding is still very young as compared to plant breeding and animal husbandry. Although fishes have been reared artificially since ancient times in certain Asian countries, this usually included the cultivation of embryos and larvae caught in rivers and lakes. Among the…mehr
Fish resources in natural water bodies are tending to decrease due to intensified fishing, the extensive construction of hydropower plants on rivers, and the pollution of seas and freshwater basins by indus trial and agricultural wastes. Nowadays only artificial fish rearing can meet man's requirements in fish products. Fish breeding is still very young as compared to plant breeding and animal husbandry. Although fishes have been reared artificially since ancient times in certain Asian countries, this usually included the cultivation of embryos and larvae caught in rivers and lakes. Among the exceptions, only the common carp Cyprinus carpio and the domesticated variety of the crucian carp, the goldfish Carassius auratus, which were cultivated in the East, may be mentioned. Com mon carp breeding began in China about 2000 years ago but was la ter banned by one of the emperors and started again only relatively recently. The goldfish has been cultivated for decorative purposes for about1000 years. Many remarkable varieties of the goldfish have been developed in China and later in Japan. The first improved breeds (German "races") of the common carp known in Europe appeared after the domestication of the Da nube wild carp in the seventeenth and eighteenth centuries. Local breeds of the carp were probably established somewhat later in Chi na, Japan and Indonesia; even now these breeds have only minor differences as compared to their ancestor, the Asian wild carp.Hinweis: Dieser Artikel kann nur an eine deutsche Lieferadresse ausgeliefert werden.
1 The Material Bases of Heredity in Fishes. The Structure of Chromosomes.- The Behaviour of Chromosomes: The Main Patterns.- Mutations in Fishes.- The Evolution of Karyotypes Among Cyclostomes and Fishes.- Chromosomal Polymorphism.- Sex Chromosomes.- Nonchromosomal Heredity.- 2 The Genetics of Fish Grown in Fish Ponds and Living in Natural Water Bodies.- The Main Principles of Mendelian Inheritance.- The Inheritance of Qualitative Traits in the Common Carp (Cyprinus carpio L.).- The Inheritance of Qualitative Traits in Other Pond Fishes.- The Genetics of the Wild Fish Species.- 3 The Genetics of Aquarium Fish Species.- The Guppy (Poecilia reticulata).- The Platy (Xiphophorus maculatus).- The Medaka (Oryzias latipes).- The Fighting Fish and the Paradise Fish (Anabantidae).- Other Aquarium Fishes.- 4 The Inheritance of Quantitative Traits in Fishes. Phenodeviants.- General Features of Quantitative Variation.- Methods of Heritability Determination in Fishes.- Problems in Genetic Studies of the Quantitative Traits.- Variation and Heritability of Body Weight and Length, the Age at Sexual Maturity and Fertility Among Fishes.- Variation and Heritability of the Common Viability and Resistance of Fishes to Various Diseases.- Variation and Heritability of Morphological Characters Among Fishes.- Variation and Heritability of Physiological and Biochemical Traits.- Phenodeviants.- 5 The Biochemical Genetics of Fishes.- The General Principles of Fish Immunogenetics.- Examples of Blood Group Variability in Commercially Important Fish Species.- Protein Polymorphism Among Fishes: The Background.- The General Level of Polymorphism.- The Genetics of Nonenzymatic Proteins in Fishes.- The Genetics of Enzymes: Oxydoreductases.- Transferases, Hydrolases and Other Enzymes.- General Conclusions.- 6 The Use of Biochemical Variation in Embryological, Populational and Evolutionary Studies of Fishes.- Gene Expression During Embryogenesis.- Functional Differences Between Isozymes and Between Allelic Forms of Proteins.- The Clinal Variation in Protein Loci.- Monogenic Heterosis in Protein Loci.- Natural Selection with Respect to Individual Alleles.- The Evolution of Fish Proteins.- Biochemical Genetics and Systematics.- Biochemical Genetics and the Population Structure in Fish Species.- The Adaptive Nature of Biochemical Polymorphism.- 7 Gynogenesis in Fishes (N. B. Cherfas).- Natural Gynogenesis and Hybridogenesis.- Induced Gynogenesis.- The Practical Application of Gynogenesis.- 8 Problems and Methods of Fish Selection.- The Purposes of Selection.- Methods of Selection: Mass Selection.- Methods of Selection: The Selection for Relatives.- Combined Selection.- Inbreeding, Crosses and the Breeding System.- New Trends in Fish Selection.- The Selection of Fishes Living in Natural Waterbodies.- The Most Important Fish Breeds Created by Man.- 9 Conclusion.- References.- Index of Fish Names.
1 The Material Bases of Heredity in Fishes. The Structure of Chromosomes.- The Behaviour of Chromosomes: The Main Patterns.- Mutations in Fishes.- The Evolution of Karyotypes Among Cyclostomes and Fishes.- Chromosomal Polymorphism.- Sex Chromosomes.- Nonchromosomal Heredity.- 2 The Genetics of Fish Grown in Fish Ponds and Living in Natural Water Bodies.- The Main Principles of Mendelian Inheritance.- The Inheritance of Qualitative Traits in the Common Carp (Cyprinus carpio L.).- The Inheritance of Qualitative Traits in Other Pond Fishes.- The Genetics of the Wild Fish Species.- 3 The Genetics of Aquarium Fish Species.- The Guppy (Poecilia reticulata).- The Platy (Xiphophorus maculatus).- The Medaka (Oryzias latipes).- The Fighting Fish and the Paradise Fish (Anabantidae).- Other Aquarium Fishes.- 4 The Inheritance of Quantitative Traits in Fishes. Phenodeviants.- General Features of Quantitative Variation.- Methods of Heritability Determination in Fishes.- Problems in Genetic Studies of the Quantitative Traits.- Variation and Heritability of Body Weight and Length, the Age at Sexual Maturity and Fertility Among Fishes.- Variation and Heritability of the Common Viability and Resistance of Fishes to Various Diseases.- Variation and Heritability of Morphological Characters Among Fishes.- Variation and Heritability of Physiological and Biochemical Traits.- Phenodeviants.- 5 The Biochemical Genetics of Fishes.- The General Principles of Fish Immunogenetics.- Examples of Blood Group Variability in Commercially Important Fish Species.- Protein Polymorphism Among Fishes: The Background.- The General Level of Polymorphism.- The Genetics of Nonenzymatic Proteins in Fishes.- The Genetics of Enzymes: Oxydoreductases.- Transferases, Hydrolases and Other Enzymes.- General Conclusions.- 6 The Use of Biochemical Variation in Embryological, Populational and Evolutionary Studies of Fishes.- Gene Expression During Embryogenesis.- Functional Differences Between Isozymes and Between Allelic Forms of Proteins.- The Clinal Variation in Protein Loci.- Monogenic Heterosis in Protein Loci.- Natural Selection with Respect to Individual Alleles.- The Evolution of Fish Proteins.- Biochemical Genetics and Systematics.- Biochemical Genetics and the Population Structure in Fish Species.- The Adaptive Nature of Biochemical Polymorphism.- 7 Gynogenesis in Fishes (N. B. Cherfas).- Natural Gynogenesis and Hybridogenesis.- Induced Gynogenesis.- The Practical Application of Gynogenesis.- 8 Problems and Methods of Fish Selection.- The Purposes of Selection.- Methods of Selection: Mass Selection.- Methods of Selection: The Selection for Relatives.- Combined Selection.- Inbreeding, Crosses and the Breeding System.- New Trends in Fish Selection.- The Selection of Fishes Living in Natural Waterbodies.- The Most Important Fish Breeds Created by Man.- 9 Conclusion.- References.- Index of Fish Names.
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