9789351246398 - design construction and uses of trawal fishing gear (english) [hardcover] [jan 01, 2015] von biswas, k p (2 Ergebnisse)
- Hardcover
Anbieter: Majestic Books, Hounslow, Vereinigtes KönigreichMajestic Books
Verkäufer/-in kontaktierenVerkäufer/-in mit 4 SternenZustand: Neu
EUR 23,33
EUR 7,58 VersandVersand von Vereinigtes Königreich nach USAAnzahl: 4 verfügbar
Zustand: New. pp. xv + 240 152 Figures.
- Hardcover
Anbieter: Vedams eBooks (P) Ltd, New Delhi, IndienVedams eBooks (P) Ltd
Verkäufer/-in kontaktierenVerkäufer/-in mit 4 SternenZustand: Neu
EUR 46,55
EUR 17,50 VersandVersand von Indien nach USAAnzahl: 4 verfügbar
Hardcover. Zustand: New. Contents: 1. Evolution of Trawl Fishing Gear. 2. General Principles of the Design of the Trawl Gear. 3. Working Principles and Performances of Trawl Nets. 4. Trawl Net Design and Development. 5. Mid Water Trawl One Boat Mid Water Trawl. 6. Bottom Trawl Large Meshed Bottom Trawl.7. Semi pelagic Trawl. 8.…Shrimp trawl. 9. Trawling technology transfer to the users. 10. Trawl selectivity on the catch. 11. Accessories of Trawl net. 12. Sieve Trawl-by catch reduction device. 13. Power requirement for Trawl net operation. 14. Electrical Trawl. 15. Instrumentation of Trawl gear. 16. Terminology for Trawl gear technology. 17. Fish behavior to approaching Trawl gear. 18. Engineering performance of a Trawl gear. 19. Use and operation of Trawl gear. Index. The net, among the fishing gear occupies the prime position in catching fish commercially for mass production. Among the net, trawl net chase the fish to be caught, as such, has established itself as the most important gear throughout the world oceans. With these objectives, the book in its nineteen chapters, not only, outlined the features of the trawl net, but described the operational characteristics of the net in different operating conditions. Starting with the principles of the design and construction of the net, the evolution of various trawl fishing gears, tested on trials over time series, from the conventional two seam trawl to four and six seam trawls with overhang, bulged belly, long wing, large mesh, tested for operation at different depths were elaborately described in different chapters of the book. The incorporation of By catch Reduction Devices, a new innovation adopted as conservation measures together with the common by catch species encountered in Indian Seas have also find place in the book. The engineering performance of trawl net in operation towards perfection was elaborately discussed in flume tank test. The reaction and behavior of fish school towards approaching trawl was vividly observed under water and narrated in the book. The possibility of introducing electrical trawl in sea fishing with technical back-up was discussed in details. The construction details and diagrams of different types of trawl presented in the book will be useful to the students, teachers, net-makers and net manufacturers. (jacket).
