Paperback. Etat : new. Paperback. A few fishes breed only once in their long life spawn eg. Pacific salmon . The fresh water eel breeds only once in 10-14 years . Most of the fishes breed in one season every year, they are called seasonal breeders, but some breed in all seasons, through out the year, and they are called year round spawners . - Seasonal breeders exhibit rhythmic changes in the structure and physiology of ovary and testes in different seasons. These changes are demarcated into five phases - 1. Resting phase (December - January) 2. Preparatory phase(February - April) 3. Maturing phase (may - June) 4. Spawning phase (July - September) 5. Post spawning phase(October - November) GONADOSOMATIC INDEX (GSI) - It is a ratio between body weight and the weight of gonad showing the status of ovary and testis in terms of maturity and denotes the phase of the reproductive cycle- GSI = Weight of the gonad 100 Weight of fish-weight of the gonad - GSI of fish increases with the maturation of the fish i.e. lowest during post spawning phase and highest at the peak of maturity i.e. spawning phase.FEMALE REPRODUCTIVE ORGAN - Unlike mammals, the female reproductive system of teleosts. This item is printed on demand. Shipping may be from multiple locations in the US or from the UK, depending on stock availability. N� de r�f. du vendeur 9786209418853

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Physiology and Reproductive Biology in Fish

Elsayed A M Shokr

Edit� par LAP LAMBERT Academic Publishing, 2026

ISBN 10 : 6209418856 ISBN 13 : 9786209418853

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PHYSIOLOGY AND REPRODUCTIVE BIOLOGY IN FISH

Elsayed A. M. Shokr

Edit� par LAP LAMBERT Academic Publishing Apr 2026, 2026

ISBN 10 : 6209418856 ISBN 13 : 9786209418853

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Taschenbuch. Etat : Neu. This item is printed on demand - it takes 3-4 days longer - Neuware 276 pp. Englisch. N� de r�f. du vendeur 9786209418853

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Physiology and Reproductive Biology in Fish

A M Shokr, Elsayed

Edit� par LAP Lambert Academic Publishing, 2026

ISBN 10 : 6209418856 ISBN 13 : 9786209418853

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PHYSIOLOGY AND REPRODUCTIVE BIOLOGY IN FISH

Elsayed A. M. Shokr

Edit� par LAP LAMBERT Academic Publishing, 2026

ISBN 10 : 6209418856 ISBN 13 : 9786209418853

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Taschenbuch. Etat : Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - A few fishes breed only once in their long life spawn eg. Pacific salmon . The fresh water eel breeds only once in 10-14 years . Most of the fishes breed in one season every year , they are called seasonal breeders , but some breed in all seasons, through out the year , and they are called year round spawners . - Seasonal breeders exhibit rhythmic changes in the structure and physiology of ovary and testes in different seasons. These changes are demarcated into five phases - 1. Resting phase (December - January) 2. Preparatory phase(February - April) 3. Maturing phase (may - June) 4. Spawning phase (July - September) 5. Post spawning phase(October - November) GONADOSOMATIC INDEX (GSI) - It is a ratio between body weight and the weight of gonad showing the status of ovary and testis in terms of maturity and denotes the phase of the reproductive cycle- GSI = Weight of the gonad � 100 Weight of fish-weight of the gonad - GSI of fish increases with the maturation of the fish i.e. lowest during post spawning phase and highest at the peak of maturity i.e. spawning phase.FEMALE REPRODUCTIVE ORGAN - Unlike mammals , the female reproductive system of teleosts. N� de r�f. du vendeur 9786209418853

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PHYSIOLOGY AND REPRODUCTIVE BIOLOGY IN FISH

Elsayed A. M. Shokr

Edit� par LAP LAMBERT Academic Publishing Apr 2026, 2026

ISBN 10 : 6209418856 ISBN 13 : 9786209418853

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Taschenbuch. Etat : Neu. This item is printed on demand - Print on Demand Titel. Neuware VDM Verlag, Dudweiler Landstra�e 99, 66123 Saarbr�cken 276 pp. Englisch. N� de r�f. du vendeur 9786209418853

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Physiology and Reproductive Biology in Fish (Paperback)

Elsayed A.M. Shokr

Edit� par LAP Lambert Academic Publishing, 2026

ISBN 10 : 6209418856 ISBN 13 : 9786209418853

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Vendeur : CitiRetail, Stevenage, Royaume-Uni

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Paperback. Etat : new. Paperback. A few fishes breed only once in their long life spawn eg. Pacific salmon . The fresh water eel breeds only once in 10-14 years . Most of the fishes breed in one season every year, they are called seasonal breeders, but some breed in all seasons, through out the year, and they are called year round spawners . - Seasonal breeders exhibit rhythmic changes in the structure and physiology of ovary and testes in different seasons. These changes are demarcated into five phases - 1. Resting phase (December - January) 2. Preparatory phase(February - April) 3. Maturing phase (may - June) 4. Spawning phase (July - September) 5. Post spawning phase(October - November) GONADOSOMATIC INDEX (GSI) - It is a ratio between body weight and the weight of gonad showing the status of ovary and testis in terms of maturity and denotes the phase of the reproductive cycle- GSI = Weight of the gonad 100 Weight of fish-weight of the gonad - GSI of fish increases with the maturation of the fish i.e. lowest during post spawning phase and highest at the peak of maturity i.e. spawning phase.FEMALE REPRODUCTIVE ORGAN - Unlike mammals, the female reproductive system of teleosts. This item is printed on demand. Shipping may be from our UK warehouse or from our Australian or US warehouses, depending on stock availability. N� de r�f. du vendeur 9786209418853

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