Physiology and Reproductive Biology in Fish (Paperback)
Language: English
Published by LAP Lambert Academic Publishing, 2026
- Softcover
- New
Seller: CitiRetail, Stevenage, United KingdomCitiRetail
AbeBooks seller since June 29, 2022
Condition: New
£ 100.99
Quantity: 1 available
Add to basketItem description from seller
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. …
Seller Inventory # 9786209418853
- Title
- Physiology and Reproductive Biology in Fish (Paperback)
- Author
- Elsayed A.M. Shokr
- Publisher
- LAP Lambert Academic Publishing
- Publication year
- 2026
- Condition
- new
- Binding
- Paperback
- Language
- English
- ISBN 10
- 6209418856
- ISBN 13
- 9786209418853
"Synopsis" may belong to another edition of this title.
CitiRetail
Stevenage, United Kingdom
AbeBooks seller since June 29, 2022
Shipping rates from United Kingdom to U.S.A.
| Item | 7 to 14 business days | 7 to 60 business days |
|---|---|---|
| First item | £ 37.00 | £ 37.00 |
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