prawn migration using light di upadhyay anand (4 risultati)

Taschenbuch. Condizione: Neu. Neuware -In nature, freshwater prawn migrates from river to brackishwater for breeding and the juveniles return back to the river system for growth and development. Prawn move upstream, entering lakes and even paddy fields. Migration of the prawns is induced according to the physiological conditions which are mainly controlled by light intensity and water current. Though biology and physiology of prawns have been discussed at large, no effort has been made so far to study those characteristic behaviors of prawns. Findings of this investigation may help in formulating new strategies while planning and designing water control structures or barrages across the fresh water rivers in estuarine/coastal areas so as to minimize their adverse impact on prawn migration to upstream river side which is essential for completion of prawn life cycle. This study may be also useful in evolving a new system for efficient collection of the prawn brooders/ berried female from the natural resources as well as culture ponds. Apart from being a fundamental research, this investigation has applied values in further development of prawn aquaculture.Books on Demand GmbH, Überseering 33, 22297 Hamburg 56 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -In nature, freshwater prawn migrates from river to brackishwater for breeding and the juveniles return back to the river system for growth and development. Prawn move upstream, entering lakes and even paddy fields. Migration of the prawns is induced according to the physiological conditions which are mainly controlled by light intensity and water current. Though biology and physiology of prawns have been discussed at large, no effort has been made so far to study those characteristic behaviors of prawns. Findings of this investigation may help in formulating new strategies while planning and designing water control structures or barrages across the fresh water rivers in estuarine/coastal areas so as to minimize their adverse impact on prawn migration to upstream river side which is essential for completion of prawn life cycle. This study may be also useful in evolving a new system for efficient collection of the prawn brooders/ berried female from the natural resources as well as culture ponds. Apart from being a fundamental research, this investigation has applied values in further development of prawn aquaculture. 56 pp. Englisch.

Condizione: New. Dieser Artikel ist ein Print on Demand Artikel und wird nach Ihrer Bestellung fuer Sie gedruckt. Autor/Autorin: Upadhyay AnandDr. A. S. Upadhyay is a senior technocrat in the Marine Products Export Development Authority, India. He is presently working with the Department of Commerce under the Ministry of Commerce & Industry, Government of Indi.

Taschenbuch. Condizione: Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - In nature, freshwater prawn migrates from river to brackishwater for breeding and the juveniles return back to the river system for growth and development. Prawn move upstream, entering lakes and even paddy fields. Migration of the prawns is induced according to the physiological conditions which are mainly controlled by light intensity and water current. Though biology and physiology of prawns have been discussed at large, no effort has been made so far to study those characteristic behaviors of prawns. Findings of this investigation may help in formulating new strategies while planning and designing water control structures or barrages across the fresh water rivers in estuarine/coastal areas so as to minimize their adverse impact on prawn migration to upstream river side which is essential for completion of prawn life cycle. This study may be also useful in evolving a new system for efficient collection of the prawn brooders/ berried female from the natural resources as well as culture ponds. Apart from being a fundamental research, this investigation has applied values in further development of prawn aquaculture.