Aquatic Sciences and Fisheries Abstracts
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Publisher :
Page : 820 pages
File Size : 42,80 MB
Release : 1995-03
Category : Fisheries
ISBN :
Author :
Publisher :
Page : 820 pages
File Size : 42,80 MB
Release : 1995-03
Category : Fisheries
ISBN :
Author : National Library of Medicine (U.S.)
Publisher :
Page : 704 pages
File Size : 34,22 MB
Release : 1993
Category : Medicine
ISBN :
First multi-year cumulation covers six years: 1965-70.
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Page : 808 pages
File Size : 29,42 MB
Release : 1991
Category : Water
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Author :
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Page : 630 pages
File Size : 49,62 MB
Release : 1960
Category : Fish culture
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Author :
Publisher :
Page : 940 pages
File Size : 15,89 MB
Release : 1986
Category : Power resources
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Author :
Publisher :
Page : 884 pages
File Size : 15,56 MB
Release : 1976
Category : Genetics
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Author : National Library of Medicine (U.S.)
Publisher :
Page : 1328 pages
File Size : 24,14 MB
Release : 1993
Category : Medicine
ISBN :
Author : B. Gopal
Publisher : Springer Science & Business Media
Page : 260 pages
File Size : 40,64 MB
Release : 2012-12-06
Category : Science
ISBN : 9400919840
Life originated and evolved in water. Later the The tropical countries where the need to under plants moved out of water, conquered the land and stand the natural ecosystems is far greater because became dominant over it. The evolution through they are under intensive pressure from develop the millennia resulted in enormous complexity of ment from a rapidly growing human population, form, tissue organisation, reproductive mechan have generally devoted much less attention to the isms and specialisation of taxa in different niches. studies of aquatic ecosystems. The Indian subconti At some stage during evolution, some plants devel nent is a well-recognised biogeographic region with oped appropriate morphological and physiological a distinct geological history, climate, soils and adaptations and reverted back to the aquatic and/ biota. It is also distinct in the history of human civilisation and cultures which have a profound bear or semi-aquatic habitat. These plants, perhaps with the exception of a few ing on the natural ecosystems. This book is in with beautiful flowers, have attracted little atten tended to provide the state of our knowledge of the tion from mankind. The fact that humans evolved aquatic and semi-aquatic vegetation in the inland in a tropical forest or savanna environment appears freshwaters of the subcontinent. The book covers responsible for a permanent bias in human atti only the herbaceous vegetation, since there is al tudes towards land and its biota.
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Page : 688 pages
File Size : 50,1 MB
Release : 1966
Category : Fish trade
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Author : John F. Wickins
Publisher : John Wiley & Sons
Page : 464 pages
File Size : 45,39 MB
Release : 2008-04-15
Category : Technology & Engineering
ISBN : 0470995076
Crustacean Farming: Ranching and Culture, Second edition. John F. Wickins and Daniel O'C Lee. The second edition of an extremely well-received book, Crustacean Farming, deals with all cultivated crustaceans of commercial significance, shrimp, prawns, crayfish, lobsters, crabs, and spiny lobsters, and examines the criteria by which both the feasibility and desirability of farming proposals are assessed. The characteristics and production methods of farmed and candidate crustacean species are described in sufficient detail to enable areas of profitable involvement to be distinguished form other opportunities presenting only very high risks and possibilities for serious loss. Coverage extends right from broodstock acquisition and management through to the operation of hatcheries, nurseries and on-growing units to key aspects of processing and marketing. New to this second edition are ranching and re-stocking operations together with the culture of ornamental shrimp and small crustaceans used as live food in fish and shellfish hatcheries. The sections on crustacean diseases, genetics and nutrition have been extended in the light of recent research advances. Examples of investment and operating costs of the different culture options are compared and an analysis of current trends in world crustacean markets is presented to assist in economic and financial appraisal. Special consideration is given to the place of crustacean farming within the economics of developing nations in relation to social and environmental impact in order to promote awareness of the wider implications of global developments. The consequences of recent research and technical developments are considered, together with concerns over genetic and animal welfare issues. Specific areas where further advances in technology are needed to improve the reliability or productivity of farming systems are highlighted. This important book is a vital tool and reference work for all those involved with crustacean farming worldwide.