Fóris Gyula (szerk.): Mezőgazdasági vízhasznosítás. II. Halászat (VIZDOK - Mezőgazdasági KkV, Budapest, 1975)
Irodalom
sale of fish. The engineering works are also discussed: the aspects and principles of the arrangement and lay-out of fish farms as well as the engineering preliminary designing. In the course of the latter the required survey work, hydrological, water quality and soil mechanical investigations are duscussed. The merits and disadvantages of the various fish ponds systems are also analysed and a guide for dimensioning the technological structures (propagation house, spawning, breeding and production ponds and reservoirs) is given. Water supply of the lakes are also given considerations, together with the possible ways and means of water conservation. The chapter includes the dimensioning of earth works and provides information about wave protection of the embankments and the various ways of grassing and reed plantation. The description of the typical fish farm structures as gate valves, spillways, fish garths, barge locks and inlet structures of stock ponds is followed by the discussion of the problems of the construction, operation and mechanization of fish farms. Consideration is given to the fish farms machinery (pumps, lifting equipments, electrical fishing gears, weed and reed cutters). The multi-purpose utilization of fis hponds and duck breeding on fish ponds are also discussed in this chapter. The fifith chapter deals with the biological and breeding requirements of trouts, giving special attention to the questions of supplementary ripening and fattening as well as to some special fish farm equipments. The last, sixt chapter of the book is devoted to the ancillary uses of fishery, i. e. fish breeding on rice plantations and basic consideration on the use of fish ponds for waste water disposal and secondary treatment. The book consists of 12 sheets of A/5 form, with 33 figures, 8 tables and 41 pictures. A long list of pertinent literature is added for those who wish to study the questions in detail. The handbook has been written for the use of hydraulic- and agricultural engineers as a guide in planning and design, but it provides wide information for other specialists employed in the trade of fishery. 212
